RJ-
Whole Plate Photographer
Hi Cal,
They aren't common - a few of us use them for commercial work. Most have moved on to digital capture and lost the aesthetic of film with the dying emulsions like Fuji Tungsten 64T and the smooth tonality of the larger format.
The Silvestri T30, Hermes and S4 series can all accept 5x4 inch backs - they require the No.0, 1, 2, 3, 4 spacing adapters to match for 47mm, 58mm, 75mm. 100mm (and there was a 120mm format one too). I've never seen another 5x4" back on a Silvestri Hermes other than mine. It took a lot of work to figure it out although Mr Silvestri was an amazing trove of knowledge and very amenable to supporting photographers before the queries got passed onto employees. There isn't anything else quite like the Silvestri - it's a machine bulleted chassis and completely plane parallel so the accidental non-zero tilts of front and rear standards are a thing of the past for ultrawide angle lenses. The 5x4 Polaroid conversions come close for portability but nowhere close for the extreme wide-angle field of view nor movements. I love it for its unusual blend of cross-movements across both vertical and horizontals.
They aren't common - a few of us use them for commercial work. Most have moved on to digital capture and lost the aesthetic of film with the dying emulsions like Fuji Tungsten 64T and the smooth tonality of the larger format.
The Silvestri T30, Hermes and S4 series can all accept 5x4 inch backs - they require the No.0, 1, 2, 3, 4 spacing adapters to match for 47mm, 58mm, 75mm. 100mm (and there was a 120mm format one too). I've never seen another 5x4" back on a Silvestri Hermes other than mine. It took a lot of work to figure it out although Mr Silvestri was an amazing trove of knowledge and very amenable to supporting photographers before the queries got passed onto employees. There isn't anything else quite like the Silvestri - it's a machine bulleted chassis and completely plane parallel so the accidental non-zero tilts of front and rear standards are a thing of the past for ultrawide angle lenses. The 5x4 Polaroid conversions come close for portability but nowhere close for the extreme wide-angle field of view nor movements. I love it for its unusual blend of cross-movements across both vertical and horizontals.