Nikon D40 reader The Calumet Roll Holder C2

The Calumet Roll Holder C2 is a rollfilm back for 4x5 cameras designed to slip in front of the groundglass like a sheet film holder- unlike most rollfilm backs that require partial disassembly

There's easily enough room for a pro camera and a big f2

the lens support is an old-school threaded pin

It’s got an aperture ring

Focusing and diaphragm operation are excellent

Nikon D40 reader The Calumet Roll Holder C2The Nikon D40 is a compact 6mp DX format DSLR compatible with Nikon F mount lenses. Yes, it's an older camera; no, it doesn't do video. But if you're looking for a solid basic DSLR, this D40 might just do the trick. It's in excellent condition, with battery, charger, and strap.