Astromania Bahtinov Mask that Focusing for Telescope - FM140mm for a Tube Outer Diameter (OD) from 150mm-200mm - can be Mounted with The Brass Screws Inside or Outside The drawtube Black

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€8.40
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€8.40
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Produktdetails

Artikelnummer 234219841 Erscheinungsdatum 2026/06/27 Listenpreis €8.40 Modellnummer 234219841
Kategorie
  1. Electronics
  2. Camera & Photo
  3. Accessories
  4. Telescope & Microscope Accessories
  5. Telescope Accessories
  6. Eyepieces
  • 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 150-200mm 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

ASIN B01M2633ZS
Brand Astromania
Mount Equatorial Mount
Focus Type Manual Focus
Model Name FM140mm
Unit Count 1 Count
Finderscope Reflex
Item Weight 2.1 Ounces
Manufacturer Astromania
Model Number SKU_AM_BFM140
Compatible Devices Cameras, Smartphones, Mounts
OpticalTube Length 140 Millimeters
Age Range Description no
Objective Lens Diameter 150 Millimeters
Focal Length Description 140 millimeters
Manufacturer Part Number SKU_AM_BFM140
Eye Piece Lens Description No

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