Nikkor 300mm Lens Bahtinov Focus Mask or any 126mm outer diameter lens

Description

126mm I.D on mask.
Nikkor 300mm
Bahtinov Focus Mask for Nikkor 300mm Lens. If your camera has long lense , enough pixals and you enjoy the night sky, this is for you.
Place it on the lense
Point towards a bright object
Manually focus for the center line to be right between the angled ones.
Fast usps shipping.  Made from spencer 3d. Color black but other colors available just ask. Fast free USPS 2 Day SHIPPING