raytoei@gmail.com
Veteran
Brian Sweeney fixed my Industar-50 Rigid of the back focus problem.
I tried it out today... and I like the results.
Film is Trix-400 souped in XTOL, ei. of 1600.
(f3.5, 1/30s)
(f3.5, 1/30s)
(f3.5, 1/30s)
(Used with Permission)
Thanks Brian!
I tried it out today... and I like the results.
Film is Trix-400 souped in XTOL, ei. of 1600.

(f3.5, 1/30s)

(f3.5, 1/30s)

(f3.5, 1/30s)
(Used with Permission)
Thanks Brian!
Last edited:
Steve M.
Veteran
Love that first shot. If they ever stopped making Tri-X I don't know what I'd do. It looks exactly like a B&W film should look. Good lens on your camera.
axiom
Non-Registered User
The middle one is pretty
I like it
I like it
I like seeing results like this.
The I-50 is not hard to shim, amazing that even at a max aperture of F3.5 it makes a real difference.
Did you get anything back on the Hektor yet...
The I-50 is not hard to shim, amazing that even at a max aperture of F3.5 it makes a real difference.
Did you get anything back on the Hektor yet...
raytoei@gmail.com
Veteran
Brian, i am determined to do a whole roll on each lens...currently on J-8 on an Acros 100, and then for the cul-de-sac, i shall spend a whole roll on my ultimate heart-breaker lens, the hektor
thanks again.
paulfish4570
Veteran
The I-50 is a stalwart little lens ...
dave lackey
Veteran
Brian,
I love the results from my Industar lens given to me by Johan!
The only thing is the aperture ring which does not "click" into place but rather moves about and I have to keep it on the aperture setting with a piece of tape.
Is there anything that can be done to fix this?
I love the results from my Industar lens given to me by Johan!
The only thing is the aperture ring which does not "click" into place but rather moves about and I have to keep it on the aperture setting with a piece of tape.
Is there anything that can be done to fix this?
The I-50 Rigid, J-8, and J-3 all depended on a little grease to dampen and aperture movement and to hold in place. Also explains oil on the aperture blades on some of them.
On the I-50 Rigid, the optics module with aperture ring unscrews from the focus mount. The aperture scale itself remains with the focus mount. Try putting a little scotch tape on the aperture ring to get some friction with the focus mount. I've done that on a J-8 before.
On the I-50 Rigid, the optics module with aperture ring unscrews from the focus mount. The aperture scale itself remains with the focus mount. Try putting a little scotch tape on the aperture ring to get some friction with the focus mount. I've done that on a J-8 before.
I just shimmed the Collapsible I-50 that Ray gave to me- The focus was WAY off, required an extra 0.25mm shim installed. First time taking one apart, but it is almost identical in construction to the Canon 50/3.5 Collapsible.
Going out to test now on the M8.
Edit- added an extra 0.07mm to the shim, is spot on now. Also modified it by taking the infinity lock off, it was causing problems even with a cut-out M-Mount adapter.
Going out to test now on the M8.
Edit- added an extra 0.07mm to the shim, is spot on now. Also modified it by taking the infinity lock off, it was causing problems even with a cut-out M-Mount adapter.
Last edited:
gb hill
Veteran
A Sweenified I 50/3.5 rigid! What a sweet lens! I thought this to be a nice lens, & frequently overlooked. Not as good as yours, but here's a shot of my I-50 rigid on my Bessa R @ wide open on expired Tri-X souped in D-76. This lens hasn't ever been reshimmed. Glad to read it's a fairly simple job.

Share:
-
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.