HalideReducer
23-Jun-2020, 23:35
I'm looking to start making prints again (my current workflow is shoot, hand develop, scan). Our community darkroom is closed to covid and I don't have the space for an enlarger and darkroom at home, so I'm going to start with positive papers and dry plates/film for contact prints. To that end, I've picked up a pair of Pony Premo No. 6 5x7 cameras to use while I experiment with these processes. I'll keep one for myself, and the other ... I'm not sure yet.
They are both labeled Pony Premo No 6 on the identical front brass plates. One appears to be newer, with a more refined rack and pinion focus and bed extension setup. It's been polished, while the older one shows some tarnish. Both have fairly dim ground glass cut corner screens, one of them is cracked.
Both have long bellows, about 20". I haven't checked them out thoroughly yet but they both look light tight and supple, though the older one seems sturdier.
The older one, on the left, has a 2.75" square lens board. The newer one, on the right, has a 3.5" square lens board.
205109
205108
Does anyone know how to date them? These guys (http://www.historiccamera.com/cgi-bin/librarium2/pm.cgi?action=app_display&app=datasheet&app_id=909) say Kodak made the Pony Premo No. 6 when they rook over in 1903, but I haven't found any info on a Rochester Optical Pony Premo No. 6 (only the earlier models).
What do people recommend to clean and maintain the leather bellows?
Is it true that the bellows blocks the 5x7 plateholders (https://grumpyoldman.dev/pony-premo-no-6/) effectively giving you a 4x5 image? That seems odd. I'll find out soon enough I suppose.
Aside from a good cleaning, is there anything I can do to improve the ground glass? Is it worth it to replace them?
My next steps are to figure out what size shim I need to move the ground glass so I can focus for moderm 5x7 film holders, clean and condition the leather, clean and lubricate the rack and pinion mechanisms, and expose some film. I've also got a mess of wooden plate holders to sort out.
(edit: moved lens questions to lens forum post here: https://www.largeformatphotography.info/forum/showthread.php?158818-Bausch-amp-Lomb-Planetograph-F-8-and-quot-Three-Focus-quot-lenses)
They are both labeled Pony Premo No 6 on the identical front brass plates. One appears to be newer, with a more refined rack and pinion focus and bed extension setup. It's been polished, while the older one shows some tarnish. Both have fairly dim ground glass cut corner screens, one of them is cracked.
Both have long bellows, about 20". I haven't checked them out thoroughly yet but they both look light tight and supple, though the older one seems sturdier.
The older one, on the left, has a 2.75" square lens board. The newer one, on the right, has a 3.5" square lens board.
205109
205108
Does anyone know how to date them? These guys (http://www.historiccamera.com/cgi-bin/librarium2/pm.cgi?action=app_display&app=datasheet&app_id=909) say Kodak made the Pony Premo No. 6 when they rook over in 1903, but I haven't found any info on a Rochester Optical Pony Premo No. 6 (only the earlier models).
What do people recommend to clean and maintain the leather bellows?
Is it true that the bellows blocks the 5x7 plateholders (https://grumpyoldman.dev/pony-premo-no-6/) effectively giving you a 4x5 image? That seems odd. I'll find out soon enough I suppose.
Aside from a good cleaning, is there anything I can do to improve the ground glass? Is it worth it to replace them?
My next steps are to figure out what size shim I need to move the ground glass so I can focus for moderm 5x7 film holders, clean and condition the leather, clean and lubricate the rack and pinion mechanisms, and expose some film. I've also got a mess of wooden plate holders to sort out.
(edit: moved lens questions to lens forum post here: https://www.largeformatphotography.info/forum/showthread.php?158818-Bausch-amp-Lomb-Planetograph-F-8-and-quot-Three-Focus-quot-lenses)