Erik L
Well-known
Livesteamer
Well-known
I think these were used for macro work with a rangefinder but I was just wondering if it could also be used for collimating lenses for those of us that play with Russian glass. Joe
Erik L
Well-known
oh i was thinking it was a visoflex part
Solinar
Analog Preferred
That my friend is a copy of a Leica Focaslide close-up attachment for a Barnack.
Once the camera is mounted to the Focaslide, the entire apparatus needs to mounted to either an enlarger or copy stand. With the proper extension tubes, one can either do macro work or copy work, such as photographing pages of a book.
It's awkward in use - but it did get the job done in the pre-Visoflex days, so long as it was mounted to a firm post.
Once the camera is mounted to the Focaslide, the entire apparatus needs to mounted to either an enlarger or copy stand. With the proper extension tubes, one can either do macro work or copy work, such as photographing pages of a book.
It's awkward in use - but it did get the job done in the pre-Visoflex days, so long as it was mounted to a firm post.
Erik L
Well-known
well that explains why ive never seen one. thanks for clearing it up.
Solinar
Analog Preferred
While the one in the ebuy auction is not a direct copy of a FULDY - Focaslide. The FULDY version has 12.4mm extension over the camera flange. While not specifically designed to test if the focus accuracy of a lens, it best use today is as a substitute for a collimator.
With the lens set at infinity each lens should be at perfect focus when the optical target is at the following distances from the lens flange.
35mm - D=168.8mm
50mm - D=301.6mm
85mm - D=752.6mm
90mm - D=833.2mm
And so forth. I noticed that this version does not have a cut out for the front shutter speed dial. So, your mileage may vary.