NOT a Bahtinov Mask

Ukastronomer (Jeremy) · #1 30-05-2019, 07:00 PM

I have heard that these are perfect for focus on the Moon as that is all I enjoy imaging

Can anyone name it please so I can make one and find youtube video

Many thanks

Huey (Michael) · #2 30-05-2019, 07:09 PM

Jeremy,
Try to search for Scheiner mask. There are different designs. They are easy to make out of cardboard or for a more permanent design use plywood or similar.

Huey

Ukastronomer (Jeremy) · #3 30-05-2019, 09:56 PM

Many thanks

That led me to hartmann mask

xelasnave · #4 31-05-2019, 01:03 AM

I used one years ago with only two holes and it was reasonably effective.
Alex

Ukastronomer (Jeremy) · #5 31-05-2019, 01:28 AM

I don't think they are suitable for DSOs etc but for the Moon it is supposed to be perfect, well better than eyesight