Author Topic: A rubber band mount for the TV-Heligon 19mm  (Read 531 times)

Bruno Schroder

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A rubber band mount for the TV-Heligon 19mm
« on: February 12, 2017, 20:33:53 »
With 65 grams and a 33 by 39 mm size, the TV-Heligon 19mm, or its optical bloc, is a tiny lens, very different from the other fast lenses often seen here. The 1cm working distance is too short for practical use on F mount but on CX or on a Sony Nex it reaches between 5 or 8 cm, depending on the configuration and the lens being mounted straight or reversed.
In its raw form, it looks like picture 1 below. Hopefully, the optical block is in one piece and, unscrewed, reveals a M30 inner thread perfectly suitable to attach all sorts  of eBay adapters. 
However, the easiest mount is reversed and stuck on a Nikon CF, which is a perfect fit for its outside diameter. 2 rubber bands for security and it’s done.  In this configuration, the working distance is 6 cm and puts a 43mm wide field of view on sensor. 
Bruno Schröder

Bruno Schroder

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Re: A rubber band mount for the TV-Heligon 19mm
« Reply #1 on: February 12, 2017, 20:48:44 »
a few pictures, already posted in various threads.
Bruno Schröder

richardHaw

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Re: A rubber band mount for the TV-Heligon 19mm
« Reply #2 on: February 13, 2017, 03:02:06 »
so long as it work  :o :o :o
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HCS

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Re: A rubber band mount for the TV-Heligon 19mm
« Reply #3 on: February 13, 2017, 18:27:09 »
Special, Bruno. Gives some nice results, especially the softness.
Hans Cremers

Bruno Schroder

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Re: A rubber band mount for the TV-Heligon 19mm
« Reply #4 on: February 13, 2017, 22:50:13 »
It works for me, Richard.

Thanks Hans, like the other Heligons, it is mostly fun exploration.
Bruno Schröder

Akira

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Re: A rubber band mount for the TV-Heligon 19mm
« Reply #5 on: February 14, 2017, 01:59:26 »
The normal orientation seems to work nicely:fair sharpness in dreamy bokeh and flare.
"The eye is blind if the mind is absent." - Confucius

Jakov Minić

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Re: A rubber band mount for the TV-Heligon 19mm
« Reply #6 on: February 14, 2017, 08:20:10 »
Bruno, these are magical!
Free your mind and your ass will follow. - George Clinton
Before I jump like monkey give me banana. - Fela Kuti
Confidence is what you have before you understand the problem. - Woody Allen

Erik Lund

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Re: A rubber band mount for the TV-Heligon 19mm
« Reply #7 on: February 14, 2017, 14:23:48 »
Very dreamy  :D
Erik Lund

Bruno Schroder

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Re: A rubber band mount for the TV-Heligon 19mm
« Reply #8 on: February 17, 2017, 18:45:00 »
Thank you, guys.

Jakov, we should perhaps rejuvenate this idea of an Heligon meet up :)
Bruno Schröder