#1	Bahtinov masks take the guesswork out of focusing and even get over the seeing conditions as it is a mathematical type approach to the taskThe best focus for your telescope quickly and easily
#2	Suitable for use on all types of telescope reflectors rafractors Dobsonians MakCas and SCTs 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
#3	The masks grip the telescope tube gently but firmly with three metal posts which have nonscratching silicon sleeves to protect you valued telescope surface This prevents slippage whilst allowing the mask to remaining perfectly central Because of this 3pos
#4	They are made from 2mm thick laser cut plexiglass and the securing screws are capped with soft plastic so that they do not damage your telescopeThese high quality Bahtinov masks are adjustable to fit a wide range of optical tubes unlike masks which are on
#5	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 contact us if you are not sure