Jasper Engineering Stereo Photo Slide Bar  type_Measuring it's out of the optical

it's out of the optical path and won't affect imaging

stiff diaphragm

7 lens is a compact manual-focus lens designed for Sony E-mount cameras

The D5200 is compatible with Nikon F-mount lenses (sold separately)

designed to fit lenses with a 49mm filter thread

Jasper Engineering Stereo Photo Slide Bar &nbsptype_Measuring it's out of the opticalThis Jasper Engineering slide bar is designed for stereo photography with matched cameras. It's 16" (about 40cm) long, with two sliding platforms, each with a 1 4" threaded camera mount. In good working order, with a small scrape at the corner of one rail end that does not affect function. Two camera platforms and one stopper block are included (both sides have an end stop.)