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Repair: Fungus Cleaning

Hello, everybody! I was a bit busy with a wedding yesterday (photographer#2) so I did not have the time to prepare for a full lens teardown post so I decide to write something else instead this time. It also dawned to me that in order to keep this blog alive, I should not post a lens teardown every week because I will quickly run out of lenses to write about! A balance has to be struck so I will write filler posts like these in between the teardown posts so I hope that you don’t mind.

I will promise that I will make these filler posts as educational as possible and with the same standards as my teardown posts so that you, my readers will not get bored reading my blog. Nikon has made a lot of lenses but I can only afford a few to feature on the blog.

I have some people ask me about how to remove fungus from a lens. This is also a niche topic that is not commonly discussed and even if you found one on the internet or other media, the information that is being presented is usually sparse and scattered all over the net so you will have to hunt for them and decide which one works and which one doesn’t. For this reason, I will share to you my fungus removal routine. This is something that I have been doing to any lens that I bought that has fungus in it. It has worked so far and the lenses stay clean and clear. Let’s start!

Introduction:

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Fungus in a lens is something that all photographers try to avoid as much as possible. This is something that is impossible to avoid because the tiny fungal spores responsible for this is everywhere, from the air we breath to every surface that we touch. The only measure to prevent this from ever happening is not to provide the spores any chance to germinate at all by depriving them of nutrients and other variable essential for them to thrive. More

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Nikon 75-150mm f/3.5 Series E

Hello, everybody! Such a lovely weekend we have now at Tokyo, unfortunately for me I ate a lot of cheese tarts and we all know that cheese is not a friend for the lactose intolerant. I am also happy that my child is approaching her 1st birthday soon. Time flies so fast, it is as if it was just a few months since she was born and now here she is, bouncing around like a hyper bunny! This post took me several nights to make because I want to make this easy to read so I hope that you enjoy this!

Introduction:

This lens does not need a lot of introduction. The E 75-150mm f/3.5 is considered by many to be a hidden gem of a lens despite being a Series E lens, a line of lenses made by Nikon to complement the entry level class Nikon EM camera. The Series E lenses are made with cost as the main factor while maintaining superb optical design and performance. Many lenses under the Series E label are superb performers and they have acquired such a following in the used lenses market that they sometimes cost more than lenses on the Nikkor series!

IMG_2552(I got this one for very little money for the purpose of writing this. If I can afford the lens, I will get it to accommodate your request. This one is still in pretty good shape.)

Just like any popular and tested lens, this lens is also not exempt from known issues with the zoom creep problem being the most well known. This issue of the zoom creeping (the lens changes length on it’s own due to gravity) seem to plague a lot of photographers who own this lens (mine has a little bit of it). Another issue is that the focusing ring seems to be too light or not damped at all (lubricant choice). More

Repair: GN Auto-Nikkor 45mm f/2.8

Hello, my dear readers! Despite the busy schedule I managed to pace my time in order to post this to my blog on a timely manner. Apart from being busy at work, I was down with hay fever. Hay fever is a thing here in Japan every spring and it affects a significant part of the populace. I hope that you stay healthy and keep your masks on to prevent hay fever from ruining your Spring.

As I promised a few posts before, I would like to present to you some unusual Nikkors as we have dealt with conventional ones in the previous posts. This is to nurture your growth in this craft so that you get to start with simple lenses and then proceed to the more exotic ones. The subject of our post this time is the mysterious GN Auto-Nikkor 45mm f/2.8!

Introduction:

This lens is a mystery to many because it was the only Nikkor lens of it’s type that got into production. This lens was designed to aid photographers with guessing flash exposure in mind. Back in the days before TTL metering, photographers need to adjust flash output by re-calculating the flash’s power as you go nearer or further from the subject (hence GN or guide number). Nikon has to engineer clever ways to work around this like like our subject for this post, the GN Auto-Nikkor 45mm f/2.8. Another good example is the early production type Micro-Nikkor-P 55mm f/3.5 where the iris opening is compensated as you go closer to it’s maximum reproduction ratio of 1:2 native and 1:1 with the included M ring accessory.

This lens has a switch on the focusing ring to couple the focusing ring to the aperture ring so that these 2 move in sync as you turn the focusing ring. For example as you focus your lens closer the iris would stop down and when you focus further the iris would open up to compensate. This allows you to shoot without even thinking about changing the power of your flash. While this is all good and clever, it has a catch. Nikon’s lenses’ focusing ring goes the opposite way, this means turning the focus ring to the right makes the lens focus to infinity and in order to make this clever iris compensation trick work this Nikkor needs to focus the opposite way so you turn your focusing ring to the opposite direction! This is very annoying for me so I do not use this lens as often as I would like to.

IMG_1774This lens is an example of precision engineering. Just look at all those beautifully engraved information and numbers, this is something that you do not regularly see in current lenses from mainstream brands. More

Repair: Nikkor-Q 200mm f/4

Hello, dear readers. I am sorry for posting this late but I was having a problem with the blog so I was not able to post this earlier. For some reason, I cannot access my drafts and my site would not load at all. That was all fixed when I decided to restart my Macbook Pro. This whole thing scared me because I have spent a lot of time writing and documenting for this blog and if all were to go down the drain then it would mean the end of everything for me! Anyway, now that it is all in the past we can now proceed with our subject for today!

Introduction:

Our subject for today is the amazing Nikkor-Q 200mm f/4 lens. I chose to write about this lens because I just finished  repairing one and a certain reader named Mister Chan is going to repair his Nikkor-Q 200mm f/4 lens.

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