Astromania

Bahtinov Mask Focusing Mask for Telescopes - FM80mm for a Tube Outer Diameter (OD) from 85mm-120mm - can be Mounted with the Brass Screws Inside or Outside the drawtube

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R 832
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Description

  • Bahtinov masks take the guesswork out of focusing and even get over the seeing conditions as it is a mathematical type approach to the task; the best focus for your telescope quickly and easily
  • Suitable for use on all types of telescope; they are made from precision laser cut enforced plexiglass that is stiff and long lasting; they will never be brittle in the cold; unlike some other masks which are made from normal plastics
  • The masks grip the telescope tube gently but firmly with three metal posts which have non-scratching silicon sleeves to protect valued telescope surface; mask remains centered since 3-post mounting; while fitting a wider range of telescopes
  • Made from 2mm thick laser cut plexiglass and securing screws are capped with soft plastic so that do not damage telescope; They have adjustment latitude of about 85-120mm that adjustable to fit optical tubes unlike masks which only fit one telescope
  • Please be assured these focusing masks will work excellently for both reflectors and refractors with whatever focal length; all you need to do is to measure telescope tube size and choose right size of mask contact us if not sure where to measure
Technical Specifications
Manufacturer
Astromania
Model
SKU_AM_BFM80
Size
For Outer Diameter from 85mm-120mm
Height
0.3 cm
Length
13 cm
Width
13 cm
Weight
0.04 kg
Shipping & Delivery

Your order is shipped from the USA and delivered to your door in South Africa in 10–20 working days. All items are fully tracked.

Returns & Exchanges

We offer a 30-day return window. If something isn't right, contact our support team and we'll make it right.