Let's do a Shootout for DIY Focus Mask for Astrophotography

In this video, I have tried to do a basic review of different types of Focus Masks for 8" Telescope and then rank them for best suitablity for Visual astronomy and Astro Photography.
This ranking is based on my observations and is not ment to contradict any other such study.

I expect this Video will help the amature astronomers to best select the type of focus masks they need for their telescope.

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Intro: (0:00)
Types of Masks Studied: (0:50)
Setup: (1:19)
Hartmann Mask: (1:33)
Bahtinov Mask: (2:33)
Hartmann & Bahtinov Combo: (3:38)
Custom: (4:36)
Modified Bahtinov: (5:14)
Ranking: (6:27)
Conclution: (8:07)
Blopper: (8:30)


The masks are made out of a DIY project, ment for this study and no intension to commarcially sell them.
The link to the DIY Video is:
   • DIY Focus Mask for 8" Newtonian Telescope  

Gear and Setup Used:
Camera: i Phone 11
Telescope: GSO 8" Dobsonian
https://tejraj.com/gso-8-pro-dobsonia...
Adaptor: https://www.amazon.in/gp/product/B082...