Nikon D40 brand_Polaroid Has an internal 1/4-20 screw

Has an internal 1/4-20 screw to mount beneath an appropriate Leica Ever-ready case when not on a lens

Accurate shutter speeds and metering

Shutter is accurate through its range

With the included 10-pin cable

This extension tube for LTM/39mm thread mount Summer & Elmar 5cm lenses is designed to provide 1:2 magnification

Nikon D40 brand_Polaroid Has an internal 1/4-20 screwThe 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 a shockingly low 500 actuations, and includes a battery, charger, strap, and USB cable.