Alstar Bahtinov Mask Focusing Mask for Telescopes - FM80mm for

Alstar Bahtinov Mask Focusing Mask for Telescopes - FM80mm for a Tube Outer Diameter (OD) from 85mm-120mm
- Please be assured that these focusing masks will work excellently for both reflectors and refractors with whatever focal length; All you need to do is to measure your telescope tube size and choose the right size of the mask
- They are made from 2 mm thick laser cut abs; Securing screws are capped with soft plastic so they do not damage your telescope; These Bahtinov masks are adjustable to fit a wide range of optical tubes; They have adjustment latitude of about 85 to 120 mm
- The masks grip the telescope tube gently but firmly with three metal posts which have non scratching silicon sleeves; protect you valued telescope surface; Prevents slippage; Allow the mask to remaining perfectly central because of this 3 post mounting
- Suitable for use on all types of telescope; They are made from precision laser cut enforced plexiglass which is stiff and long lasting; They will never be brittle in the cold unlike some other masks which are made of normal plastics
- 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
Country USA
Brand A ALSTAR
Manufacturer Alstar
Binding Electronics
ItemPartNumber 6971336220957
Model SKU_AM_BFM80A
Warranty 2 Year Manufacturer
UnitCount 1
EANs 6971336220957
ReleaseDate 0000-00-00

Country	USA
Brand	A ALSTAR
Manufacturer	Alstar
Binding	Electronics
ItemPartNumber	6971336220957
Model	SKU_AM_BFM80A
Warranty	2 Year Manufacturer
UnitCount	1
EANs	6971336220957
ReleaseDate	0000-00-00

Alstar Bahtinov Mask Focusing Mask for Telescopes - FM80mm for a Tube Outer Diameter (OD) from 85mm-120mm

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