Mod: Autofocus Helios-44 for Nikon

Hello, everybody! I am going to show you a little project of mine. I get bored with fixing and repairing lenses so I do modifications as well when time and budget permits. Here is my latest creation (now in prototype stage) – the Autofocus Helios-44 for Nikon!

Here is the thing in action. It works surprisingly good at this stage so I am going to take this thing for a test tomorrow afternoon!

What you see here is the Mk1, the Mk2 will have the iris coupled to the lens and the Mk3 will have a macro mode. The Mk3 might require a different host lens which has a bigger inner diameter for the objective of the Helios-44. I was initially thinking of modifying a Carl Zeiss Jena Biotar 58/2 lens but that thing is too expensive for me. I am thankful for the advise that was given to me to use the Helios-44 instead since it is the Russian copy of the Zeiss and costs a lot less so I went about looking for the oldest one available and the iris had to be of the “pre-set” type for simplicity so that everything relating to the optic is contained in one compact cell.

The project itself didn’t take long and the hardest part is sourcing a 3D printing service. I do use 3D applications at work so I am able to make CAD data for the 3D printer. This is just a proof of concept at the moment and with the very limited time that I have I think I will be able to finish this project my Fall of this year. I do have many things to work on so I this is not an urgent thing for me plus I am still not done with last year’s backlog.

I consider this as the poor man’s Nikkor 58mm f/1.4G AF-S lens. Let’s see where this thing will lead to. I am sure that some people made something like this previously since this is something simple and common sense is all you need to connect these 2 different types of lenses into one working object. It is as natural as sticking a pen into a damn apple so you end up with a “pen pineapple apple pen” or whatever that damn thing is called.

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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 account ( 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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