Lens mounting question

[jeff4]

Could anyone recommend a "spacer" to fit between shutter and lens board? It seems that if I tighten the retaining ring enough to secure the lens/shutter to the board, the aperture ring becomes too tight to move. I was thinking that a small spacer would solve the problem, but don't want to try something that could/would cause any damage. Any help would be appreciated.

Thanks very much,
Jeff

 

[TheFlyingCamera]

a little bit of aluminum or brass "shim stock" would do it...
you'd have to cut it out from a pattern yourself, either with tinsnips or a hacksaw of some kind, or if you're handy with one of those rotary cutters, that would work as well.

 

[StreetShooter]

Hi Jeff,

When I had my last lens mounted onto a Technika board, I had the same problem as you did.

So, the technician who cut the hole into the board also cut a little 1/4" (might be smaller than that) spacer for it. The spacer fit over the opening in the board and this allowed the aperture ring to slide smoothly. The other reason for him doing this was because the locking mechanism on my adapter board also needed some space in order to lock the lensboard into place.

So, speak with a camera technician and, chances are, he'd be able to help you out with this spacer.

 

[vet173]

If it is a copal #3 there is already a standard spacer available.

 

[John Bartley]

Could anyone recommend a "spacer" to fit between shutter and lens board? It seems that if I tighten the retaining ring enough to secure the lens/shutter to the board, the aperture ring becomes too tight to move. I was thinking that a small spacer would solve the problem, but don't want to try something that could/would cause any damage. Any help would be appreciated.

Thanks very much,
Jeff

A rubber (neoprene/nitrile etc.) o ring, of a diameter to slide snugly over the the shutter threads, but thin enough so as not to take up too much space will work. As you tighten up the nut, the o ring will compress to "almost" nothing, will keep the assembly tight and will supply a small amount of clearance for the aperture ring. Try the plumbing stores.

cheers

 

[StreetShooter]

A rubber (neoprene/nitrile etc.) o ring, of a diameter to slide snugly over the the shutter threads, but thin enough so as not to take up too much space will work. As you tighten up the nut, the o ring will compress to "almost" nothing, will keep the assembly tight and will supply a small amount of clearance for the aperture ring. Try the plumbing stores.

cheers

John,

What a GREAT idea!

Thanks

Cheers

 

[JLP]

Had the same problem and got some steel shims from McMaster Carr.
What size do you need? i have some extras and if they fit i can drop a couple in the mail.

jan

 

[jeff4]

Thanks everyone for the tips--- lots of great suggestions! The shutter I'm working w/ is an old #00. Now if I can only figure out how to make it easier to get to those small control levers . . . .

Thanks again all,
Jeff