grant_harris2 Posted October 31, 2003 Share Posted October 31, 2003 I have a Sinar F camera and have just purchased a Graflex 6x7 roll film back. I haven't received it yet. Will it fit on the Sinar? Link to comment Share on other sites More sharing options...
grant_harris2 Posted October 31, 2003 Author Share Posted October 31, 2003 Oh dear, I don't think it will as it doesn't appear to be big enough. Are adapter plates available. It seems to be the same size as a Mamiya RB back Link to comment Share on other sites More sharing options...
dan_fromm1 Posted October 31, 2003 Share Posted October 31, 2003 I fear you're stuck. With an adapter plate, if one could be found or made, the film will not be in register with the ground glass. Sell your new old back and get another in a 4x5 shell. And this time ask whether the back is for a 2x3, 3x4, or 4x5 camera before you buy. They came in all three sizes, 3x4s are very scarce. All sizes of shell have/accept the same carriers. Most of these roll holders are made for Graflok backs. Pardon my ignorance, does your Sinar F have a Graflok (= international) back? If it has a spring (Graphic, as in Speed Graphic) back, you won't be able to mount a Graflex (wait, more nomenclatural confusion is coming) back. In that case you want a Calumet C2 or a 4x5 Adapt-A-Roll 620 or the very very very expensive Sinar. If you try to get another Graflex brand holder, look for one with a late-model shell, which will have a pin roller at each side of the gate. These shells usually have lever-wind (not knob wind) carriers, but since carriers can be switched between shells you should check. Now for the real confusion. Most Graflex SLRs have what is called a Graflex back, and Graflex (the company) made roll holders for them too. Roll holders for Graflex (the SLR) backs are (a) rare, (b) more valuable/expensive than holders for Graflok backs, and © won't mount on Graflok backs. Note that all of these names are spelled with 'f', not 'ph.' Cheers, Dan Link to comment Share on other sites More sharing options...
tor_kviljo1 Posted October 31, 2003 Share Posted October 31, 2003 Welcome to the madness of LF film-holders! Now - if You are of the handy type, It is possible to make an adapter Yourself: The Sinar Lens boards & thus also the ground-glass assy' adapts to the format frame as a 140mm square with rounded corners. Making a plate of this size (ex. aluminium 1mm thick) with cut-out for the film holder aperture/6x7cm, you will be able to built up the correct thickness between film holder & metal-plate to put film-plane equivalent to GG-plane of the F1 back (remove film holder & put in frosted glass resting on film-rollers for correct viewing distance). You will se that the distance between GG surface & the fastener-plate (which You make Yourself of aluminium) is great enough to make this adaption possible. When distance correct: glue or fasten roll-film back in position & check for light leaks between adaptor-plate & film-back. Felt or raised rim on camera-side of adaptor-plate necessary to prevent side-light from entering. Due to the fast lock mechanism on the Sinar, You will find that this way of mounting a film-back opens up for a faster routine of changing from GG fo roll film back than unhinging the GG-back & fasten the film holder using the two graflock locks. Of cource - the Calumet/sinar slide-in rollfilm holder is fasterGood luck Link to comment Share on other sites More sharing options...
ann_m Posted October 31, 2003 Share Posted October 31, 2003 The RH10 (Graflex 6x7) was made for both 4x5 & 2x3 Graflex cameras. If you have in fact purchased an RH10 for 4x5 it will fit any camera with a Graflok back... which your Sinar F has. I have a Graflex 6x7 holder mounted on my Sinar at this very moment and it works just fine. Link to comment Share on other sites More sharing options...
dave_s Posted November 4, 2003 Share Posted November 4, 2003 For a 4 x 5 camera with an international back, I think two conditions cover it, and you should be able to discern these from even the most pathetic out-of-focus ebay photograph: (a) To fit on a 4 x 5 camera, you have to get a roll holder with the flange that sticks out an inch on all sides-- not flush with the box. (b) Avoid any rollholder that says "23 Graflex" in big white letters on the back, because it was made to fit the fabled Graflex SLR (or certain Speeds and Crowns with weirdass Graflex backs). These are quite rare as has been pointed out, so it's not likely to be a problem. Question for you Graflex gurus out there-- as far as I know, the later (ostensibly better) lever-wind roll holders were all made with a ridge to fit the Graflok/international back. Is that correct? Were any of these made grooved to fit the Graflex back? Link to comment Share on other sites More sharing options...
eyelight Posted December 19, 2003 Share Posted December 19, 2003 <p>I have an F1 and the RH-8 back fits just fine on it. For fun, and if it helps anyone, you can go here to see a few snapshots that show how to install the back:</p> <a href="http://www.egksystems.com/RH8onSinarF1">RH8-Sinar Illustrated Instructions</a><div></div> Link to comment Share on other sites More sharing options...
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