Quote:
Originally Posted by bobson
I wish it is mate, but wait there is more 
While I was occupied with mount I just realised they packed wrong eyepieces in the box. This is not BinoCentral fault but Skywatchers.
I am supposed to get: 1.25" Plossl 10mm, 2" LET 28mm
I got 12.5mm and 20mm, both 1.25”
I called BinoCentral and they are investigating.
Cheers
Bob |
If the optics in your 20" scope are decent, and SW optics usually are, they deserve better eyepieces than the crap starter eyepieces they throw in the box. A 28mm eyepiece will have a 7mm exit pupil. Unless you are 20 years old, your eye won't be able to accept the light from the telescope and you are unwittingly converting your scope to the equivalent of a much smaller scope.
If you are in your 50's, you'll only get the equivalent light of a 14" scope. If you are 50+, a good quality eyepiece around 20mm with a wide apparent field 70-84 degrees will give you maximum light transmission to your eye.
Look at eyepieces like:
Baader Morpheus, 17.5mm 76 deg
Denkmeier D21mm, 68 deg
Pentax XW 20mm, 70 deg
Televue Nagler 22mm, 82 deg
Televue Ethos 21mm 100 deg
Explore Scientific 18mm 82 deg
Explore Scientific 20mm 100 deg
Joe