Repair: Nikkor-Q 135mm f/2.8

Hello, everybody! I am craving for some smooth and creamy French blue cheese, the one that smells of feet with the blue molds. It’s one of my comfort foods and I love to spread it on top of some saltine crackers for breakfast. I know that this isn’t good for people who suffer from gout but you have to eat the things that make you happy some times. We only live once and we should live our life to the fullest! Of course, we should never abuse our health so we should take care not to over-do anything. Since we’re on the topic of smooth and creamy things, I’ll show you something smooth and creamy that isn’t as expensive as the stinky French cheese that I crave. Read the whole article to find out more.

Introduction:

There are few Nikkors that can match The Nikkor-Q 135mm f/2.8 Auto when it comes to creating smooth bokeh for very little money. These lenses can be had for as little as $10 to an average of $80 these days depending on the condition. Near-mint samples with those valuable factory Ai-rings can fetch above $120 but seldom any more than $150. This lens is not as popular these days because it’s a manual focus lens and the modest f/2.8 speed is turning-off many people who crave for faster glass. For people who know their stuff, this is a lens that’s going to be a keeper. Professionals even use these today and I know a few of them (2 actually) who use these as their portrait lens for work.

IMG_1213The Nikkor-Q 135mm f/2.8 Auto debuted in in 1964 and was made until 1975. It was then replaced by a similar lens with the same optics but with an updated design. The 135/2.8 lens family has about 6 major variants in its long production run. The lens family existed up until the DSLR era with the Nikkor 135mm f/2.8 Ai-S being the last version. This shows how this lens line sold very well through the years and across generations. It’s a classic in the sense that it’s never going to be useless even in the decades to come.

IMG_1285The lens is built like a hammer! There is just not enough words to describe the feel of this thing in your hand and it makes you wonder why you are paying so much money for the plastic lenses that come out these days. The lens also has a built-in lens hood, a very nice touch. Everything about this lens hints that this is what a pro lens should be back in the days. This is also the first of a long line of 135/2.8 lenses that Nikon made until recently. It was the favorite of many photographers for all the right reasons as you’ll see later in this article.

This lens only has 4 elements, hence the Q in Nikkor-Q. This means that there is less glass to filter-out the light coming from outside and this translates into rich saturated colours as well as the 3-dimentional look that many of today’s overly-corrected lenses lack. Many people think that more glass is better but that isn’t always the case. It’s a balancing act by the lens engineers to make glass with as less elements as possible while correcting flaws in the design. As years went by, people wanted lenses that beat the charts and graphs at the cost of a lens’ rendering qualities. Advances in engineering and electronics also gave the lens designer access to computers that can calculate for these flaws, making it easier to compensate them with more glass. This led to the state that we are currently in now, it is starting to get boring as each lens is produced because they now look nearly-identical when it comes to rendering. Gone are the days when lenses used to be measured by how they render a picture and so Nikon began introducing this again with their new premium line of lenses like the AF-S NIKKOR 58mm f/1.4G and the AF-S NIKKOR 105mm f/1.4E ED. I would love to own any of these but my finances wouldn’t allow me to do so and that’s the reason why I am shooting old lenses and I am showing you which ones to get.

Knowing how a lens performs is the best way to optimize it. If you know its weakness, it’s easy to work around it and exploit its strengths in order to give you the most out of it. It’s a very nice lens but I feel that the focus throw is a little bit too long. This hints that it was probably designed mainly as a studio-only lens where precise focusing is allowed since it is a controlled environment. For sports or other stuff where the subject isn’t cooperative, it can be a challenge to focus this lens. It takes a lot of practice if you’re not used to using manual focus tele-lenses but you should be able to get the hang of it within a day.

 

(Click to enlarge)

The samples above were shot from f/2.8, f/4 and f/5.6 in that order from left-to-right. You can see that the lens is sharp wide-open but you can see some magenta “blooming” near any hot highlights or areas with high contrast. This makes the lens look less-sharp than it realy is at f/2.8. Contrast is also quite decent at this aperture, it’s decent over-all. Stopping it down to f/4 will clean the aberration away and the pictures look “crisp” or cleaner than f/2.8 but not by much because it’s already quite nice wide-open. The background and the bokeh still looks smooth and blurred but not as smooth as it was at f/2.8. By f/5.6, the lens is beginning to peak in resolution. The background has lost its blurriness due to deeper DOF but it’s still nicely-rendered. In case you guys are curious, the vignetting isn’t bad at all as you can see in the first set of pictures. I also shot some pictures with this focused at infinity so you will see how this lens performs when focused further. It all looks good so you don’t have to worry about this lens being a “portrait-only” lens.

Time for some real-world photos. Pardon some focusing errors, this is a manual lens and it’s hard to avoid this problem specially if your subjects aren’t staying still. I took these at f/2.8 because I want you to see the maximum effect of the blurred background and judge it for yourself. I would also like to showcase how decent the sharpness is wide-open and despite the chromatic aberration being present, I will show you how this can be used for shooting portraits. I don’t have a model available when I took these so please forgive me if my pictures look like some creep shots from a stalking pervert.

 

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I love the 135mm focal length for candid shots. It allows me to shoot people from about a couple of paces before they even notice what I am doing. A longer lens will also give you more compression and you can use this to “flatten” your perspective and use it for telling a story. Telephoto lenses aren’t only used for getting closer to your subject, you also use these to fill your frame and alter how your subject looks. Shooting a model with a longer lens when taking full-body shots will make them look taller or skinnier. This also applies to faces and other things that is why you don’t want to use longer lenses when shooting things like food or jewelry because it will make them look even smaller. Learning how to use focal lengths is very important in story telling and a good director knows his lenses.

HAW_3459I just can’t resist taking photos of these Mainland Chinese tourists squatting at the middle of the fashionable Ginza district here in Tokyo. Their poses caught my attention because they look like some old European master’s painting. You can take the villagers out of the village but you can’t take the village out of the villagers as they say.

 

(Click to enlarge)

Here are 2 good examples of compressing a scene. Pardon the missed-focus on the first picture, I ended up focusing on the handles! It would have been a great photo otherwise. Compressing the frame can flatten your perspective and make the size relation between the elements in your scene less obvious. Sorry, I can’t get-over the focusing boo-boo of the first picture. The ladies look so natural that’s why I rushed to take their photo.

 

(Click to enlarge)

The bokeh looks gorgeous with this lens, please click on each image to see them bigger! It is amazing how much you can isolate your subjects from the background with this lens. I love the smooth and painterly-like rendering of this lens. The background feels like some pastel or water color painting! It can look rather comical if used too much but this is just what you can get when you position your subject and background properly. Sharpness is also very good but not so good that you can see every pore in your subject’s skin, which is a very good trait of portrait lenses. So, are you convinced that this lens is good? Wait, I have more samples for you to look at.

HAW_3429Wow, just look at this photo! See how her skin glows? This is how the optical flaws of this lens work together and form a nice picture. Instead of taking away from the picture, they actually add more to it to make the rendering soft. I said soft but I wan’t talking about the lens not being sharp, I was using it in the context that the rendering looks delicate. It has this refined look to it that makes it exquisite. You want an ART lens? This is an ART lens!

 

(Click to enlarge)

More samples for the bokeh lovers. This lens can turn your background into mushy peas, Just look at how soft it is! There’s absolutely no defined edges in the background, details and bright points of lights just blend together into a wash of colors. I beg you to click the pictures to see the whole frame and just look at how everything melts like cheese.

 

(Click to enlarge)

Here are some more examples. The lens is very versatile and you can use to shoot things like environmental portraits. It has a lovely character and you can use this lens to show potential clients that you have something that the competition doesn’t but don’t tell them that it only costs just a fraction of the expensive new lens that the other guy bought. You know how some clients will always want the expensive gear, tell them that this lens has some magical properties that only artists know about.

So, are did I make a believer out of you now? Did I make you want to buy this lens? Well, if you don’t have one then please get yourself a copy. These don’t cost much so I don’t see why you wouldn’t want to get one for yourself, just make sure that it has an Ai-ring or it’s going to be used only with older Nikon cameras or mirrorless cameras wirh adapters. It’s worth paying the premium for a sample with the Ai-ring if you want to use this thing on modern Nikons with the Ai interface. If you have this lens but isn’t it then I hope that this article can inspire you to shoot with it. I want to get the word out about this lens and the amazing rendering it can do so I hope that I can convince you to help spread the word.

Enough with the introduction, I’m sure that you are here to see the insides of this lens so let’s begin with the lens repair article!

Before We Begin:

If this is the first attempt at opening a lens then I suggest that you read my previous posts regarding screws & driversgrease and other things. Also read regarding the tools that you will need in order to fix your Nikkors.

I highly suggest that you read these primers before you begin (for beginners):

Reading these primers should lessen the chance of ruining your lens if you are a beginner. Also before opening up any lens, always look for other people who have done so in Youtube and the internet. Information is scarce, vague and scattered (that is why I started this) but you can still find some information if you search carefully.

I highly recommend that you also read my working with helicoids post because this is very important and getting it wrong can ruin your day. If I can force you to read this, I would. It is that important!

For more advanced topics, you can read my fungus removal post as a start. This post has a lot of useful information here and there and it will be beneficial for you to read this.

About Me:

I am a photographer based in Tokyo who scours the junk section of the camera shops here on a regular basis. I started this hobby of fixing old lenses and cameras because I kept on getting scammed before when I purchase online. This turned out to be a blessing because I now buy junk lenses for a fraction of the price and then fix them to add to my growing now collection. This allowed me to buy gear that were otherwise off-limits to me if I were to get them in better condition.

I was a scale modeller before who built models for other collectors for a very longtime, got an education as a dental prosthodontist (but didn’t pursue dentistry) and growing up in a watch repair shop gave me the useful skills that would help me in this craft. Fixing my car also contributed some know-how.

Having mentioned the above, I will tell you now that I am not a professional repairman! So please take what I do with a grain of salt and I will never be held responsible for anything wrong that will happen to you and your project. I hope that the pros would guide and teach us but nobody is writing anything.

As my collection of repair notes grew, I get requests from people with similar interests and from professionals who just needed some notes just in case. Now, I am sharing my library with you for your entertainment and reference. I hope that you find my work useful.

Disassembly (Lens Barrel):

This lens is probably one of the easiest Nikkor to take apart since the construction is very straight-forward. I will even suggest this lens to people who just want to have something relaxing to do on a lazy Sunday afternoon. Overhauling this lens shouldn’t even take you 2 hours. Like most lenses, we would like to separate the objective from the lens barrel so we can safely work on the lens barrel without having to worry about damaging the glass. It takes a few more steps with this lens when compared to the usual Nikkor prime since it has a big front barrel with a lens shade attached but it shouldn’t be too difficult to do.

IMG_1267Remove the screws on the bayonet (later versions) and you can remove the aperture ring from the rest of the lens. The aperture ring for my lens is not Ai’d so I had to convert this myself. To see how I do it, please read my Ai Conversion article. If yours is Ai’d then good for you.

IMG_1268The bayonet mount should come off as well. Do not force it if something felt stuck, just go about doing this step slowly.

IMG_1270Remove  the screws on the focusing ring and you should be able to remove it easily. Just take a look at that old grease, yuck!

IMG_1271.JPGRemove the screws from the shiny chrome grip and slide it up to reveal the helicoid key. In order to remove the helicoid key you should focus the lens to a certain point so that these screws can be accessed. Remove the 2 screws and set them aside. You’ll definitely want to clean the helicoid key. Just take a look at that hardened grease!

IMG_1272With the helicoid key gone, you can now separate the helicoids. The main helicoid on my lens separated at this point. Be sure to mark where they separate! If you are new to lens repair, please read my article on how to work with helicoids so you won’t get stuck. Many people get stuck here because they don’t know how to put that thing back so read what I wrote in order to prevent this from happening to you.

IMG_1273.JPGDo the same thing for the inner helicoid. Smart readers will notice a pattern in this lens by this point. The helicoids and several points in the lens have hints in them to indicate where they should separate or mate. This is very convenient and I hope that more and more lenses were made like this. Some things line-up to give you hints as to where things should mate or separate. Don’t follow what I just did here. The marks I made were bigger than what’s needed, a small scratch is all you need.

IMG_1269.JPGPull out the built-in hood and carefully unscrew this large screw holding the front barrel in place. Please disregard the fact that the focusing ring is in the picture.

IMG_1274.JPGYou should be able to unscrew the front barrel from the lens. If the front barrel will not budge, simply apply some acetone or solvent into the screw hole to dissolve the glue they used to lock it down.

IMG_1275.JPGThis lens has the number 107 marked on it. I find this interesting, can it be the number of the person who machined this part?

IMG_1277.JPGCarefully get rid of this tiny set screw. Set is aside so that you won’t lose or damage it. It can be delicate to remove it and if it’s stuck, drop oil and naphtha to that hole and wait a bit (overnight, actually) and try it again. If this got stripped then it’s going to be difficult.

IMG_1278.JPGWith the set screw gone, you can now unscrew this collar to access the objective. The ring made of brass in the picture is what Nikon used to calibrate the infinity focus of this lens. Later models will allow you to adjust it with the focusing ring’s screws.

IMG_1279.JPGMake sure that you don’t drop the objective. It’s quite heavy  and gravity alone is enough to cause this to separate from its helicoid! You may have noticed by now that you can get the objective off earlier in the lens disassembly. Once you get the front barrel off, you can then unscrew the collar securing this and pull this out. Mine was stuck so I had to detour just to remove it safely. Please keep this in mind when working with your lens.

IMG_1281.JPGFor a thorough cleaning, remove the aperture claw and its ring from the outer barrel. To remove it you have to unscrew it’s retention retention ring. I’ll lubricate these parts later as I put the lens together again for smooth operation. You only need to apply a very thin film on the ring and that’s it. Never apply too much here or it will migrate to the iris. The grease I use is the same one that I used for the helicoids so there’s no chance that the oil from the helicoids will contaminate this and vice-versa.

IMG_1280.JPGYou should have something close to this at this point. You can further disassemble your bayonet mount assembly if yours is filthy but I will just let it go for now. The bearing is a bit of a pain to work with and I don’t have the patience to work on it. I will only work on it if I had no choice.

That’s it for the lens barrel. Make sure that you clean the helicoids very well using a stiff toothbrush. Clean them very well so the old grease won’t contaminate the fresh grease. It is very important that you keep it really clean before applying the fresh grease. I used a thinner type of grease for this because I don’t want too much resistance on this lens. If I used a thicker grease then the focusing ring will be difficult to turn. Don’t apply too much grease or it will puddle-up and form a disgusting lump of grease.

Disassembly (Objective):

Disassembling the objective doesn’t take a long time since you only have 4 glass elements to think about. It is pretty straight-forward so long as you have the proper tools. I am not going to clean the iris blades on this since they are clean so for those people who need to clean theirs, this guide will not be very helpful on that matter. Read my other articles for reference, there are many lenses with iris mechanisms that are similar to this.

IMG_1661Put a small drop of acetone or alcohol into this hole to dissolve the lacquer securing this collar. Notice that the plate below it is also wet from fresh solvent, that thing comes off as well and I also applied some solvent to help dissolve any lacquer there. The rear element can be easily accessed once these are taken apart.

IMG_1663You have to remove this retention ring with the beautiful engraved characters before we move on. Use a lens spanner for this and be careful not to scratch the glass. You will also want to apply some alcohol on the seams of this ring because these are usually glued and it can be difficult to remove. It will take several applications so be patient. If you have a rubber tool then use it first before using the lens spanner. Using rubber on parts that are close to any glass part is always the preferred method. The serial numbers ends in “888” and this is one of the reasons why I got this lens. Nice!

IMG_1662Remove this ring to access the front elements. As with the rear, drop alcohol in this hole to dissolve the lacquer, wait for a few minutes and unscrew this with your hands.

IMG_1282.JPGThe front elements should come off easily. Four elements in four groups, I like simplicity and it can’t get any simpler than this (except for the Nikkor-T). The rear element is not in the picture in case you are wondering. Be careful not to drop any of these, they are heavy and may slip off from your hand!

The objective can now be cleaned properly. Thankfully, mine wasn’t too dirty so I did not have to dismantle everything even further than this. It’s also important that you make a small mark at the walls of some of the lens elements using a permanent marker. Some of the lens elements here look ambiguous or symmetrical but they’re not so that small mark will help you identify which side should be facing where. All you need is a small dot, you don’t want to make a mark that’s bigger than what you need. The walls of the lens is also marked with India ink so if yours got cleaned-off for some reason then you can apply it again with a fine-bristled brush.

 Conclusion:

Once the lens barrel has been cleaned and lubricated, you can reassemble the barrel by back-tracking the steps you took. but leave out the front barrel and hood and the collar of the objective. Reassemble the objective and make sure that the iris is snappy when you actuate it just to be sure that it’s clean.

As you can see, this lens sure is pretty simple. The only annoying step that I can think of when I was working with this lens was the part where you reassemble your lens and you need to put the objective back to the lens barrel. While the inner diameter of the barrel is pretty wide, the objective itself is pretty big as well so there is not a lot of room for you to manoeuvre. The trick here is to go slowly while aligning the aperture lever and the iris claw to their respective tabs in the objective. It may take awhile for you to get it right so do not worry. Lower the objective down into the lens barrel and make sure that the claw and tabs align. You can also depress the stop-down lever at the bayonet if you want.

IMG_1283The reason why I wanted to clean the objective is to remove one mild fungal growth at this spot. The seller (wchinazz2007 / hanamaru / ハナマル) in Yahoo! Auctions Japan is a liar and cannot be trusted. He posted that this lens is in great condition with “dirt” in the middle element and some dirt it was. Yahoo! Auctions Japan is like eBay, it’s filled with a lot of shady sellers and dishonest people.

As you can see from the photo, the fungus is gone and the lens functions like it’s new. The helicoid is now silky-smooth and the glass is clean. It should’ve been like this in the first place considering the price that I paid for it. It’s sellers like this that pushed me to repair cameras and lenses. This was not the first time I was scammed and this was certainly not the last. To their credit, there are plenty of nice and honest sellers around but shit sellers like this ruin the entire lot. The problem is they can just delete their crap account and do another one.

I had a lot of fun working on this lens and I hope that you have fun working with yours, too! Until next time, enjoy your lenses and keep shooting! Ric.

Help Support this Blog:

Maintaining this blog requires money to operate. If you think that this site has helped you or you want to show your support by helping with the upkeep of this site, you can simple make a small donation to my paypal.com account (richardHaw888@gmail.com). Money is not my prime motivation for this blog and I believe that I have enough to run this but you can help me make this site (and the companion facebook page) grow.

Helping support this site will ensure that this will be kept going as long as I have the time and energy for this. I would appreciate it if you just leave out your name or details like your country and other information so that the donations will totally be anonymous it is at all possible. This is a labor of love and I intend to keep it that way for as long as I can. Ric.

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34 Comments (+add yours?)

  1. hernlund2014
    Apr 25, 2016 @ 13:31:01

    Nice article. I’ve seen these for sale in Tokyo for pennies. They made them so well that a ton of good copies are still floating around the used market over 40 years later! I never bought one since I have a 135mm/2.8 Ai lens, which is very similar optically but more compact.

    Also, wchinazz2007 sounded familiar, and I checked my e-mail history. I bought a 39mm Nikon orange drop-in filter for my 300/4 lens from that guy, actually he stated that it had scratches on the surface but it was so cheap I figured I’d give it a try anyways. There was some crud on the surface when I got it, but after some careful cleaning with alcohol the filter is basically in perfect condition. In any case, I only use it when I mount the big lens on my film bodies with B&W film (I also keep a red filter in this size).

    Reply

    • richardhaw
      Apr 25, 2016 @ 13:37:56

      Thanks hernlund!!! yes, these are built like VW beetles. i can smash this into a mugger’s face for self defence! the Ai one I believe has a different optical design, or was it the Ai-S?

      that wchinazz2007 guy is such an annoying son of a bitch. i lodged a complaint against this guy and he even would not bother to respond to my messages properly. that rat owns a shop.

      Reply

      • hernlund2014
        Apr 26, 2016 @ 11:49:04

        Not sure but I think all the pre-Ai 135 lenses had 4 elements, while the Ai and Ai-s had the same 5 element formula. They are all great lenses, just different packages. On the Ai version the bokeh is nice but I’ve found that I have to really nail focus wide open to get sharp results and good subject separation. The green dot doesn’t always do me right with this lens.

        I’ll watch out for that wchinazz2007 jerk in the future…thanks for letting me know!

      • richardhaw
        Apr 30, 2016 @ 14:37:38

        I see. the later Ai and Ai-s ones are superb. the green dot works for me, i have poor eyesight and even a focusing screen is not helpful.

  2. Jeremy Hardy
    Jun 27, 2016 @ 11:50:14

    G’day Richard,

    This article looks awesome ;]

    I have a 135mm f/2.8 non-Ai copy of this lens that has had an AI conversion done to the rear end by a previous owner.

    I’ve recently noticed that it doesn’t focus to infinity correctly ;[

    Some research and discussion with others has come to the conclusion/suggestion that it appears to have been reassembled wrongly at some point in the past.

    So, I’m guessing I need to disassemble the lens and then adjust one or both of the helicoils and retest.

    Just wondering if you could suggest which helicoil to tweak (or both?) and in which direction to tweak it?

    Thanks, Jeremy.

    Reply

    • richardhaw
      Jun 28, 2016 @ 16:47:14

      Hello, Jeremy and thank you. I can write a guide for you next weekend if you can wait. It can be easily adjusted so long as the helicoids are not involved

      Reply

      • Jeremy Hardy
        Jun 28, 2016 @ 20:30:38

        Thanks mate, that’d be really awesome ;]

      • richardhaw
        Jun 28, 2016 @ 23:13:41

        Hello, Jeremy. You are missing the infinity mark by how many mm in the focusing scale? Ric

      • Jeremy Hardy
        Jun 30, 2016 @ 10:24:12

        G’day mate, sorry for the delay in getting back to you, work has been demanding a lot of my time this week.

        I’ve just got the lens out again and had a look.

        With the focus ring turned all the way to close focus, the 1.5M lines up dead centre on the black focus mark on the silver section of the lens.

        With the focus ring turned all the way towards infinity, the infinity mark is centered over the black focus mark in the silver section.

        So, it seems to have a full range of motion.

        I’ll try and set up the lens on tripod and measure how far from the sensor plane is in focus at a few points on the focus range.

      • Jeremy Hardy
        Jun 30, 2016 @ 11:48:49

        Ok, testing reveals the following:

        With lens focused at “1.5M”
        Distance to in focus subject = 1330mm

        With lens focused at “4M”
        Distance to subject in focus = 2870mm

        With lens focused at “10M
        Distance to subject in focus = 4650mm

        With lens focused to 20M
        Distance to subject in focus = 6310mm

        With lens focused to “Infinity”
        Distance to subject in focus = 7835mm

      • richardhaw
        Jul 01, 2016 @ 00:10:35

        Hello, Jeremy. looks like the helicoids were improperly set. If it was properly set then you will be off by less 10cm or so and it can be adjusted through the focusing ring adjustments. Wait for my article and pay attention to where my helicoids separated. Ric.

      • Jeremy Hardy
        Jul 01, 2016 @ 10:18:07

        Awesome ;]

        I did wonder if that might have been the case.

        We’re heading off on holidays after the weekend for a week. I’ll keep an eye out for your article and attack the lens when we get home.

        Thanks heaps for the help. I really appreciate it ;]

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  4. Andy MacDougall
    Aug 21, 2016 @ 12:15:03

    Hey Richard, I’m trying to strip and rebuild the 135 f2 AI, I have removed the rear plate and the 3 screws on the focus ring so it is now loose but now I’m stuck ! Can you help? Thanks.

    Reply

    • richardhaw
      Aug 21, 2016 @ 14:01:36

      Hi, Andy! That sucks. If you can post the problem with accompanying pictures on the facebook page maybe me and some other people can help you. Rick

      Reply

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  8. Martin
    Aug 30, 2017 @ 02:51:12

    What’s the easiest way for me to just remove the lens hood?

    Reply

  9. siong (Singapore)
    Oct 03, 2017 @ 08:23:04

    Hello Richard, thank you for posting all these useful notes! Can you advise me on this very same 135mm f2.8: I have disassembled the lens, and have trouble aligning the aperture fork with the protruding tab on the objective, while trying to mate the helicoids at the same time.Is it possible to assemble everything else first, then attempt to insert the objective from the front? On your repair notes on the Nikkor S 50mm 1.4, you mentioned that only the front covers need to be opened if one only wants to access the objective and clean the glass elements.
    Thank you in advance!

    Reply

    • richardhaw
      Oct 04, 2017 @ 10:01:48

      Hello, Ah-Siong.
      Yes, that is what I do. I would assemble everything and then slide in the objective. Do not forget to push the stop down lever down by the way. I may do a video on this one day.

      Some lenses will be easier to do it the other way around. If in doubt, send it to David Hilos. Ric.

      Reply

    • Jeremy Hardy
      Oct 04, 2017 @ 10:20:20

      G’day, I’m having the same issue and also looking for a hint please ;]

      Reply

  10. siong (Singapore)
    Oct 19, 2017 @ 04:41:44

    I am Singaporean. Appreciate you taking the time to post all these articles. Have since assembled the 135mm with some questionable white lithium grease and a prayer. Currently working on a Zuiko 50mm 1.4, and stuck at the rear bayonet re-assembly. The Oly 50 1.4 wasn’t a fantastic lens to begin with. A glutton for pain.
    Thanks Richard.

    Reply

  11. bryanbrazil
    Oct 25, 2017 @ 05:17:20

    Thanks Richard, this guide helped me rebuild my 135mm 2.8. I found my copy (serial #168118) to be a little different though. The aperture ring and aperture fork both screw on…there isn’t a retention ring for the fork. Thanks again!

    Reply

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  13. seeingthrough35mm
    Mar 30, 2018 @ 06:48:48

    Hi Richard! Hope you are well.
    Thank you for the articles, they’ve been tremendously helpful.

    I’ve been taking apart an AI converted version to clean the rear elements, but have been stuck with the aperture claw, as well as the aperture lever connected to the bayonet, not quite sure how to fit them together correctly. I did not strip the lens down completely, only about half way.

    Hoping you could point me towards the right direction! Thank you in advance

    Reply

    • richardhaw
      Apr 01, 2018 @ 00:04:17

      Hello. You put the lens barrel back together as usual and then just slide the objective inside while pressing on the stop down lever. it wont be easy with this lens because its deep. Ric.

      Reply

      • seeingthrough35mm
        May 01, 2018 @ 19:21:22

        Thank you Richard! I had hoped I wouldn’t have to disassemble the front lens group, as I only took it apart to clean off a patch of fungus on the rear 2 elements! Oh well, work to do… Thank you for your awesome contents! L

  14. Russ
    Oct 05, 2018 @ 03:32:56

    Hello there! Thanks for the informative and thorough guide. I’m having troubles with sitting the objective back. It seems to go in right but after that the aperture doesn’t open fully if set on anything but 2.8. There seems to be no other way to put it together but here still I’m doing the same thing over and over and it just doesn’t go back to opening fully Could you point me in the right direction? Many thanks!

    Reply

    • richardhaw
      Oct 09, 2018 @ 00:58:21

      Hello, Russ. Sorry for the late reply, I was busy.
      One way to do it is to inset the whole optics housing inside the lens barrel while the bayonet isnt installed and then install the bayonet later. Some people find this easier but not for me. This may work for you. Ric.

      Reply

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