An easy way to adapt the Heligon 42/0.75

[Bruno Schroder]

Or at least some of them, I’m not sure they are all built the same.

When my Heligon 42/0.75 arrived, a few years ago, it looked like in the first picture below. On this build, the optic block is in one piece, screwed in on an internal 48mm thread with a photograph friendly 0.75 pitch . Adapting it was easy: unscrew the optic block, screw together a K2 and a 48-52mm step ring, screw it on the internal thread, that’s it. For other mounts, there's plenty of 52MM reversing ring to use instead of the K2.

[Airy]

Great. Now, pictures please !

[Akira]

Nice find!

[Bruno Schroder]

I`ve several of them in various theme threads already but I can repost here if you prefer

[Bruno Schroder]

quick find from 2013

[Jakov Minić]

Bruno, that's beautiful!

[Bjørn Rørslett]

Interesting information about thread size, thanks.

[Bruno Schroder]

Thank you, Jakov

With the V1

[John Geerts]

A great solution Bruno.  And very nice results, I remember you posted some of them last year !

[Airy]

I`ve several of them in various theme threads already but I can repost here if you prefer

thanks

[Bjørn Rørslett]

The 1 V1 is great with these shorter focal length Heligons.

[Bill De Jager]

Very informative, Bruno.  I saw both configurations (photo#1 and photo #2) for sale and was wondering if these were different versions or merely altered in some way.

[Erik Lund]

That is a very neat solution indeed! Fine images

[Bruno Schroder]

Interesting information about thread size, thanks.

This one is very photograph friendly, indeed. I've edited the text to indicate the 0.75 thread pitch

The 1 V1 is great with these shorter focal length Heligons.

It works very well with the Sony Nex too but the 1 V1 is so easier to use. I've modified the text to add these other mounts.

[Bruno Schroder]

Found some old pictures I seem to like more now than then. D750