PLEASE READ BEFORE BUYING!!!

126mm I.D on mask. AS IS THIS WAS ORIGINALLY DESIGNED CUSTOM FOR ANOTHER CUSTOMER THEY WANTED IT A LITTLE LOOSE SO THEY CAN PUT FELT PADS IN SO IT DONT MARK OR SCRATCH THE LENS. AS IS THIS IS FOR THE FIT WITHOUT THE LENS HOOD, IF WANT A FIT FOR THE LENS HOOD LET ME KNOW AND I WILL MAKE A BIGGER FITTED VERSION, OR IF WANT IT TO FIT TIGHER AND PLAN TO NOT USE FELT PADS OR ANYTHING LET ME KNOW AND I CAN MAKE IT FIT TIGHTER WITH A 124MM FIT. IF WANT IT TO FIT THE LENS HOOD A CUSTOMER TOLD ME ITS 135MM SO I CAN MAKE ONE FOR 135MM AS WELL. PLEASE LET ME KNOW WHEN YOU ORDER WHICH FIT YOU WANT... THANKS.
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 USPS 2 Day SHIPPING