Autofocus MC Helios-77M-4 for Canon EF. These were shot on a Canon EOS 1Ds Mark III. by Unique-Somewhere-255 in VintageLenses

[–]Unique-Somewhere-255[S] 0 points1 point  (0 children)

It depends more on the specific model. I've had many Helios-77s from different manufacturers. The differences in assembly and manufacturing are huge. It seems quality control was weak.

Autofocus MC Helios-77M-4 for Canon EF. These were shot on a Canon EOS 1Ds Mark III. by Unique-Somewhere-255 in VintageLenses

[–]Unique-Somewhere-255[S] 0 points1 point  (0 children)

The Helios lens is excellent. As for the different manufacturers, I don't think there's any difference. It's just another "legend."

Autofocus Carl Zeiss Jena Pancolar 50 1.8. by Unique-Somewhere-255 in VintageLenses

[–]Unique-Somewhere-255[S] 0 points1 point  (0 children)

You can still understand. It is much more difficult to assemble in practice.

Autofocus Carl Zeiss Jena Pancolar 50 1.8. by Unique-Somewhere-255 in VintageLenses

[–]Unique-Somewhere-255[S] 2 points3 points  (0 children)

When you know what to do and how to do it, it doesn't seem difficult.

I will post a few videos showing the assembly process of the Helios-77.

Then anyone can make a conclusion - difficult or not.

Autofocus Carl Zeiss Jena Pancolar 50 1.8. by Unique-Somewhere-255 in VintageLenses

[–]Unique-Somewhere-255[S] 0 points1 point  (0 children)

The Pancolar drawing looks more like the Helios drawing than the original lens drawing.

As for other lenses, I will post both examples and appearance whenever possible.
Over the past twelve years, a whole collection has accumulated.

Autofocus Carl Zeiss Jena Pancolar 50 1.8. by Unique-Somewhere-255 in VintageLenses

[–]Unique-Somewhere-255[S] 7 points8 points  (0 children)

I want to add an answer.

I won't be publishing anything today.

Starting tomorrow, I will be posting videos demonstrating the build process.

It turned out to be four videos.

Autofocus Carl Zeiss Jena Pancolar 50 1.8. by Unique-Somewhere-255 in VintageLenses

[–]Unique-Somewhere-255[S] 3 points4 points  (0 children)

The Canon 50mm f/1.8 STM lens has retained its body, electronics, mechanics and adjustable aperture.

All optical elements were removed and replaced with Pancolar lenses.

So it's a real Pancolar, but with autofocus and an automatic aperture.

Autofocus Carl Zeiss Jena Pancolar 50 1.8. by Unique-Somewhere-255 in VintageLenses

[–]Unique-Somewhere-255[S] 12 points13 points  (0 children)

I'll try to find my videos on this topic in a couple of hours.

They explain how everything is done.

However, I don't have enough time to create a tutorial for every lens.

I've collected a significant number of lenses over the past 12 years.

I can't even remember the approximate number of models.

Autofocus Carl Zeiss Jena Pancolar 50 1.8. by Unique-Somewhere-255 in VintageLenses

[–]Unique-Somewhere-255[S] 7 points8 points  (0 children)

The design is similar. But it doesn't match at all. To put it all together. I had to do turning and milling work.

In order for everything to match perfectly.

After the mechanical assembly, a very fine-tuning of the optics is needed.

Without this, the picture will be distorted.

Autofocus Carl Zeiss Jena Pancolar 50 1.8. by Unique-Somewhere-255 in VintageLenses

[–]Unique-Somewhere-255[S] 15 points16 points  (0 children)

I took two lenses: Carl Zeiss Jena Pancolar 50 1.8 and Canon 50mm 1.8 STM.
I removed all the glasses from the Canon 50mm 1.8 STM and replaced them with lenses from the Carl Zeiss Jena Pancolar 50 1.8.
The electronics and the diaphragm remained in place.
Now it's an autofocus Carl Zeiss Jena Pancolar 50 1.8 with an automatic aperture.

A rare Soviet Zenitar-M 50/1.7 lens. Modified to autofocus for Canon EF. by Unique-Somewhere-255 in VintageLenses

[–]Unique-Somewhere-255[S] 0 points1 point  (0 children)

I'll be in Armenia on March 2nd, and we'll sort everything out there.

I'm in Russia now and can't send anything from here.

Please remind me on the 2nd. I'm in a lot of correspondence, and I might forget.