old arca swiss model ground glass install

**patrick_4829** · 6-Nov-2004, 12:15

hi,

I am brand new to LF and have just traded in an old model arca swiss 4x5 monorail view camera. I believe it is a model B axis tilt.

However I got a problem with the ground grass. I found the depth of film plan is about 0.08 inch(2 mm) more than the GG. I tried several 4x5 film holder with film installed and this difference always exist. (it is a non graflok back)

I think it is possible that there was a Fresnel lense installed between GG and the lense before. So if you happen to have an old model arca swiss 4x5, could you please help to verify whether there is a Fresnel lenseor not, and if yes how thick is the Fresnel?

Thanks for your helps!

**Franz** · 6-Nov-2004, 21:33

The older Arcas I've had came without fresnels but that doesn't mean that they ALL didn't come without fresnels.

**Ron Barter** · 7-Nov-2004, 08:36

I have an older model A, and it has small shims between the gg and the frame in order that the gg plane of focus matches that of the film holders. I just went and measured them, and they are .072", or about 1.8 mm. Hope this helps.