or
07990646466
-
We are here to help
-
sales@widescreen-centre.co.uk
-
Monday to Saturday - 10:00am-4:00pm

Bahtinov Focusing Masks

This innovative focus mask concept was invented by a Russian amatuer astronomer - Paul Bahtinov. The Bahtinov mask allows digital astrophotographers and visual observers to get razor sharp focus in seconds!

The method is very fast and incredibly sensitive. There is no guessing when you are focused during times of poor to moderate seeing. Simply put the mask and the status of your focus will become immediately apparent. The masks have a series of slots that create a unique diffraction pattern that can be used to quickly bring your telescope to focus with an absolute minimum of fuss.

5 Items
Refine
Teleskop Service Bahtinov Focusing Masks
Teleskop Service Bahtinov Focusing Masks
From  £20.00

In stock now!

Kendrick Bahtinov Focus Masks
Kendrick Bahtinov Focus Masks
From  £20.00

In stock now!

Kendrick Transparent Bahtinov Focus Masks
From  £35.00
William Optics Diffraction Spikes Bahtinov Focusing Masks
William Optics Diffraction Spikes Bahtinov Focusing Masks
From  £39.00

About 3 times brighter than traditional metal type!

Starizona EvoMask for Sky-Watcher Evoguide-50
Starizona EvoMask for Sky-Watcher Evoguide-50
£14.00
£18.00
Refine

Bahtinov Focusing Masks for Astrophotography

How to Use a Bahtinov Focusing Mask

First of all, the masks come with three adjustable rubber bumpers. This allows them to fit to a wide variety of tube diameters. Simply push the bumper to the desired location on the slot to ensure that the mask is properly centred over your optic. Then focus:

  • Attach the mask to your telescope and slew the telescope to a bright star.
  • Turn on your camera and watch your selected star on the live view screen.
  • If the image isn´t yet in focus, the central line of the Bahtinov pattern is shifted. Adjust your focuser until this very line sits exactly inbetween the other two lines.
  • Now you have achieved optimal focus. Remove the mask from your optics and you can start the exposure of your object.

The Bahtinov Mask is probably the easiest product on the market to achieve tight focus for visual use and for digital astrophotographers, regardless of whether you use a DSLR or CCD camera. This short YouTube video will show you how to choose the right size and how to use the mask under the stars