Why Purchase from All-Star Telescope?
Free Expert Support
Whether you are a first timer needing help with setting up or an enthusiast that can't quite make that one thing work, our expert staff are ready to support your needs. With decades of knowledge and first hand experience we've been there and we can help you through it!
Stress Free, Secure Transactions
You can trust purchasing and delivery with All-Star Telescope. All of our transactions are 100% secure and Level 1 PCI DSS compliant thanks to Shopify's ShopPay platform. For additional protection, we insure 100% of the value of every shipment we make. If it get's lost during shipment, we replace it. If it gets damaged during shipment, we repalce it. We make sure your product arrives exactly as you would expect it to; we promise.
We also ensure privacy protection. We never keep any of your credit card information on file and any of your personal data is stored accordign to our policies.
30 Day Return Policy
Buy with confidence knowing that we accept returns up to 30 days after purchase. We want you to have something you will actually use and we are confident that we keep good quality products in our store with No Junk.
Price Match Promise
Shipping around for the best price is tough, we make it easier by offering the best pricing in the market. But if you find a better price on an in-store item somewhere else we will match it!
Description du produit
Le masque Bahtinov est utilisé pour focaliser avec précision les petits télescopes. Bien que les masques aient longtemps été utilisés comme aides à la mise au point, le motif distinctif a été inventé par l'astrophotographe amateur russe Pavel Bahtinov.
Placez simplement le masque devant l'optique principale de votre télescope et prenez une photo. Regardez le modèle de pointe de diffraction et continuez jusqu'à ce que les pointes soient égales. L'utilisation d'un masque Bahtinov est le moyen le plus simple de faire la mise au point.
Ce masque de 140 mm est idéal pour les télescopes de classe 125 mm - 130 mm
Convient aux pare-buée d'un diamètre extérieur de 153 à 192 mm