Hi all,

I’m new to large format and want to go 8x10 for contact prints.

I’m attracted to somehow getting a lightweight monorail for field use. I’m considering an older Arca Swiss Model A 8x10. It only comes with the main rail and front and rear standards; it does not come with an additional front standard or with extension rails to make extreme close-ups. Also for sale in a separate listing, however, is a Model B front standard that can serve as the second front standard for extensions.

1. Does anyone know if Model B and A parts are compatible, I.e. same standard dimensions so that there would be no problems affixing bellows? As well, same rail dimensions?

2. Anyone know what kind of extension rail would be needed if the B and A parts are indeed compatible?

Thanks!
André