Canon Extender EF 2x III brand_Lowel This is the standard focusing

This is the standard focusing screen for the Mamiya RB67 camera

of course (there’s no exposure coupling or auto stop-down mechanism) but still a great way to shoot some really excellent classic glass

and the front pocket contains a portfolio of original documents from Project Blue Book

the glass is clean and imaging is excellent

it's accurate

Canon Extender EF 2x III brand_Lowel This is the standard focusingCanon Extender EF 2x III teleconverter, in excellent cosmetic condition. Doubles the effective focal length of the lens mounted to it. Since the teleconverter extends into the back of the lens, not all lenses may be mounted: this works with select Canon L series telephoto lenses only. Please confirm compatibility between your intended lens and this teleconverter. Clean glass and excellent function.