Nikon Nikkor-M 300mm f/9 lens mount_Praktica Electronic it is an Arca-compatible plate

it is an Arca-compatible plate designed to mount securely to the foot of the existing lens collar (which is not included)

This heavy duty slide bar kit includes two 18" Heavy Duty Slide Bars

in case your arm gets tired

It runs on NP-F type batteries (one is included

with finely geared focusing

Nikon Nikkor-M 300mm f/9 lens mount_Praktica Electronic it is an Arca-compatible plateNikon Nikkor M 300mm f 9 lens in excellent condition. This is a compact large format lens with an image circle sufficient for 8x10" film. A classic Tessar design, this lens boasts impressive resolution and possibility for movements on 4x5". Mounted in a Copal 1 shutter, healthy throughout its range of speeds. Aperture is smooth and glass is free of issues. Good cosmetic condition with slight damage to the filter ringa filter will mount alright but it