Sinar: Panorama, 2 models, 6x9 and 6x12, fixed gates; Vario and Zoom, several versions, adjustable gates. If I measured correctly, 24 mm thick.I believe there we both Sinar and Linhof slide in roll film holders, but I forget the names (I think Linhof was Rapid Rollex, but I could be wrong).
In mine they're not rubber coated (maybe that was gone a long time ago?) just a metal rod with a rough texture. I thought that was the way they were made. OTOH, that rod goesn't have enough grip to turn with the film if you try running a backing paper with no film, it doen't ratchet (i.e. a test run and you don't want to waste a roll of film.)
The combination of those factors was what led me to believe there had been a (molded on) rubber cover that was missing (likely oxidized to breakage in the 50+ years between when mine was made and when I obtained it, and any fragments removed when the seller cleaned the unit for eBay photographs). The texturing of the rod was the wrong shape to grip the backing paper, and either too-small diameter caused a short advance when counting clicks (the only way to advance a set distance) (slippage would have caused excess advance or inconsistent framing).
I could be wrong; that texture might have gripped well enough to give accurate framing when backing paper had some tooth, but it certainly didn't when I got my AAR in the early 2000s, and likely less so now. Two layers of friction tape solved the problem for me.
One thing to watch with these AAR 620 -- the roller that drives the "clicker" that lets you advance without a red window can lose its rubber coating. Mine came to me that way and I got overlapping frames on my first roll with it. If you get one like this, though, and it otherwise works, get a roll of "friction tape" and wrap two layers onto the steel roller. This tape will grip the backing well enough to drive the clicker, but won't stick permanently to the paper if you leave a roll in for a few weeks.
Will Hockey stick taped do?
In the end, I just settled on graflok backs, and the camera that I had that didn't have graflok, I just don't shoot roll film in. The film advance of the AAR is too finiky for me (figuring out which mark on the knob to stop at.
The beauty of the AAR is that it will work on a Graflok or Graphic back (pretty much anything that will accept a common double dark slide film holder, and could easily be modified to work with a Graflex back), just by slipping under the focusing panel. The ugly is that it needs 620 takeup spools. I keep wondering if I can convert the takeup on mine to use 120 (it'll feed from 120 or at least trimmed 120 as built).
Yeah, I know that, but the 3 I have are just infinitely finicky and not worth the time of day. So they sit in the bottom of a box of unused items.
As the title window says, I'm interested in a 120 Roll film adapter for Speed Graphic, spring back only, like one recently was posted, for interested conversation or, for sale.
My 4"x5".'Pre-Ani' beater only has a leaf spring back but the film holder I saw was fine for that type of accessory.
Any data, or advice is welcome, also, if one was made for a 3" x 4".Speed Graphic also pre-ani.
Godspeed and Cheers, as summer continues to wind down.
Eli
The Calumet / Cambo C2 back is a more modern slide-in roll holder that takes 120 spools (if a design that dates to the 1960s or so can be called modern). But it only comes in 4x5 size, so if you are trying to fit a 2x3 or 3x4 spring-back camera, the Adapt-a-roll is the option.
The OP said:
My 4"x5".'Pre-Ani' beater only has a leaf spring back but the film holder I saw was fine for that type of accessory.
Any data, or advice is welcome, also, if one was made for a 3" x 4".Speed Graphic also pre-ani.
So I interpreted that to mean he was looking for a 4x5 and a 3x4.
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