William Optics 172-235mm Bahtinov Focus Mask

Name: William Optics 172-235mm Bahtinov Focus Mask | Telescoop.nl
Brand: William Optics
SKU: 62748
Price: 139.00 EUR
Availability: InStock

139,00

William Optics 172-235mm Focus mask Bahtinov comes with adjustable mounting pins for telescopes from 172 to 235mm diameter.

Focusing has never been easier

The William Optics 172-235mm focus mask helps you focus quickly and precisely. It is made of high-quality acrylic glass with 92% light transmission. This keeps your image clear and sharp, even with faint stars.

William Optics 172-235mm Focus mask Bahtinov of transparent acrylic glass with adjustable pins.

Clearer bending pattern

The imprint pattern of the mask is three times more pronounced than classic metal masks. You can see the curve better and find the perfect focus faster.

Easy to use

The mask fits telescopes from 172 to 235 mm in diameter. You simply place it over your telescope and you are instantly ready to focus. The acrylic glass provides a clear and high-contrast image.

William Optics 172-235mm Focus mask Bahtinov illustration comparing the brightness of the diffraction pattern.

Specifications

General

Feature	Description
Color	Transparent
Material	Acrylic
Diameter (mm)	172-235
Type	Mask
Design	Focus Mask

Additional information

Use Type	Astronomy
Observation goals	Astrophotography
Lens diameter (mm)	≥56 mm
Suitable for f-ratio	Universal
Weight	Lightweight (0 - 5 kg)

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