|
The Celestron Skymasters are an 'average' generic Chinese 20x80. They are not fully W.P. or have the preferred F.M.C. coatings. They are 'Multi Coated' only.
Some of the 20x80 from Andrews / AOE etc. are F.M.C and W.P.
W.P is not vital unless you live in coastal or humid conditions.
As with most 20x80's they will need to be tripod mounted. You will need to acquire a tall and steady tripod that you can get 'under'. This is a cost you have to take into consideration.
A concern also to be noted is that most generic Chinese 20x80s 'only' measure 72-73 mm true aperture and are around the 18x magnification mark.
As with most Chinese binocular make sure collimation is correct.
If you do get a generic Chinese 20x80 ensure they have good return policy.
An alternative is acquiring a higher quality 'Ultra' 15x70 Binocular as also sold by Andrews and AOE. These have excellent optical and build qualities and they measure a true 70mm. These have excellent contrast and light transmission capabilities. I use my 15x70 'Ultras' more them my 20x80 triplets as the image is more 'panoramic' and rewarding.
Certainly do get a 'big' binocular - every serious binocular astronomer will have one in there collection. They do give rewarding deep sky viewing.
Chris
|