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. The Bahtinov mask is a device used to focus small astronomical telescopes accurately. Although masks have long been used as focusing aids, the distinctive pattern was invented by Russian amateur astrophotographer Pavel Bahtinov ( Russian: Павел Бахтинов) in 2005. [1] [2] Precise focusing of telescopes and astrographs .. Georgi Batinov at Iowa State University | Rate My Professors. Dr. Batinov is a fun professor with interesting speeches every now and then during lecture, but I would have wished for a much better professor for this course. His teaching style is awful; he just types stuff from a powerpoint on to a text file. Extremely inaccessible outside of class too, he rarely responds to emails in a timely manner.. Georgi Batinov | Department of Computer Science - Iowa State University. Department of Computer Science 226 Atanasoff Hall 2434 Osborn Dr Ames, IA 50011-1090 Phone (515) 294-4377. How To Use a Bahtinov Mask to Focus Your Telescope - AstroBackyard. The distinctive pattern of the Bahtinov design was created by Russian amateur astrophotographer Pavel Bahtinov in 2005. To use the mask, you simply need to cover the telescopes objective and point the telescope at a bright star. The mask creates a pattern that allows you to fine-tune the focus of the telescope to produce the signature .. What is a Bahtinov Mask and How Does it Help With Focusing? - Night Sky Pix. The whole point of a focusing mask is to help you nail the focus on your target. The Bahtinov mask does this by using a distinctive set of grids with cuts oriented along different directions. Three grids compose a Bahtinov mask