The Bahtinov Mask is a very elegant solution to one of the biggest problems that Masks are unique to each telescope so to generate your own template, you. Make Your Own Bahtinov Focusing Mask: A Bahtinov Mask will help focus your telescope or camera lens on Step 4: Cut a Mask Template on the Vinyl Cutter. High Quality Aluminum Bahtinov mask. The Bahtinov mask achieves perfect focus in seconds. The Bahtinov Mask was invented by Pavel Bahtinov from Russia. Click Here for a printable order form. Note that orders will be processed by.

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Next step was to measure the telescope outter diameter, and to draw a circle on plastic. Bahtinov factor Bahtinov factor must be a positive integer. Advanced parameters Tweak the settings to experiment, to adjust for differences in materials, or just for fun.

Angled slot count Sripe count must be a positive integer. Slot width override mm Slot width override must be bahtibov positive number. This is because the human brain interprets geometrical shape much faster than a numerical value, and is capable of evalutating its “average” position much easier. However, trying to do this with a DSLR is extremely difficult as the pentaprism viewfinder is designed for daytime use and even a ‘bright’ star appears dim in the viewfinder.

Bahtinov mask is highly superior to the Hartmann focusing mask, its predecessor, however it is more complicated to make. The Bahtinov Mask is a very elegant solution to one of the biggest problems that besets the deep sky astro-photographer – focus! bahtinovv


Focal length must be a positive number. Set up your telescope and imaging equipment as normal.

astrojargon – Bahtinov Focusing Mask Generator: Version

The most elegant ways of building the mask are laser cutting, CNC or even 3D printing. Required materials for a 8″ mask.

All credit for the mask goes to Pavel Bahtinov for creating the design, and to Dennis Sakva for championing it on Cloudy Nights.

This value is similar to that of FWHM but is considered to be more reliable especially in conditions of poor seeing. Edge thickness mm Edge thickness must be a positive number.

Each page has 1 inch overlap and markings which indicate how to connect each piece. Every astrophotographer msak have one. The mask is simple to use and users will quickly fall in love with the speed and focusing accuracy produced by the Spike-a Bahtinov mask.

Astro-CCDs have to be connected to a PC to work and the capture software can often be used to help with achieving focus by allowing you bahtunov view the captured images at high resolution on the monitor so that you can evaluate the quality of the focus.

Then I cut one half of the plastic binder, and attached to it my printed mask. Override the slot width here.

This is the same method I used to build an aperture solar filter as well. Scale to 72 DPI.

Sripe offset must be an integer. Then the annoying task – cutting the plastic. Attaching the mounting ring. The color to print a thin crosshair on the central axes of the mask.


Home Made Bahtinov Focusing Mask & Templates

Angle degrees Angle must be a non-negative number between 0 and Orion Telescopes Copyright astro jargon. What will I see in a Telescope. You shouldn’t need to tweak this unless your slots are too narrow for cutting, in which temlate, divide the factor by 3. Focal length mm Focal length must be a positive number.

Edge thickness must be a positive number. Left margin must be a non-negative number.

Pavel Bahtinov has kindly released his designs into the public domain so anyone with a little bit of DIY experience can make their own mask using the templates that can be downloaded from HERE. I’ve also read reports on printing the mask on paper with a laser printer and then transfering it to a glass using a hot iron – method which is suitable for making a small mask for DSLR or a refractor. Slot width override must be a positive number. You might want to adjust downwards to avoid generating tiny cutouts at the very top and bottom of the left-hand side.

It consists of a disk made of opaque material fitted over the telescope objective with slots cut out in a specific pattern devised by amateur astrophotographer Pavel Bahtinov. Horizontal slot count must be a positive integer.