Bahtinov Mask for ASKAR 103APO

Here are two bahtinov masks for the ASKAR 103APO.  There is a Standard version with 3mm pitch and a fine version with 2mm pitch.

For goto systems with platesolving capabilities the standard version is recommended as you can always focus on a bright star and recenter your target easily. This version is very rigid and can be tossed in a bag without much concern…

The fine version is recommended if you need to focus on dimmer stars as it produces a stronger diffraction pattern. Both versions are tested under the stars in real imaging conditions. This version is a little less rigid and needs to be handled as such…