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Astrophotography > Masks > Focusing Masks > Astrozap > Focusing Caps > Astrozap Bahtinov focus mask for ETX 125 136mm-146mm
Product no.: 15137

Bahtinov focus mask for ETX 125 136mm-146mm

$ 206.00 incl. VAT, plus shipping costs
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long-term
Product can be shipped as of 01.01.2025 + lead time

Product description

Astrozap focusing caps with integrated Bahtinov focusing wheel.

Unlike a simple Hartman or Bahtinov mask, the Astrozap focusing cap is a multi-purpose tool which allows for quick 'shutter-like' operation. Just turn the wheel to the open position for focusing, and then turn it again to the closed position to keep the dust out, or to image dark frames with your ccd or dslr camera.

The focusing wheel can be easily removed and replaced with an off-axis wheel for off-axis viewing, or an off-axis solar filter wheel for solar viewing on larger telescopes.

Simply turn the thumbscrew to the open position, and turn to close.

No plastic plugs required, and no tools needed.

Optional wheels for off-axis viewing and off-axis solar viewing

available for larger telescopes.

Astrozap focusing caps are made from lightweight aluminum

and powder-coated texture black.

Specifications

General


Length (mm)
-
Width (mm)
-
Weight (g)
-
Height (mm)
-
Colour
black
Series
Focusing Caps
Diameter (mm)
136 - 146
Astrozap Bahtinov focus mask for ETX 125 136mm-146mm
In focus star image
Astrozap Bahtinov focus mask for ETX 125 136mm-146mm
Out of focus stellar image
Astrozap Bahtinov focus mask for ETX 125 136mm-146mm
Extremely out of focus star image

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