gb_astro
21-12-2010, 09:54 PM
9mm TMB Planetary II in as new condition, about two months old.
Excellent eyepiece for the money.
Sharp, with plenty of eye relief for a 9mm.
Just a bit of astigmatism way out near the field edge.
Plus:
This 8mm TMB series II Planetary has good centre sharpness and again there is plenty of eye relief.
But it has a problem with astigmatism starting about 50% from centre of field.
For this reason I am giving it away free to the purchaser of the 9mm.
If you have a slow scope (>=f10) or a tracking scope you probably can live with it's limitations.
Both come with box and caps and feature twist up eye cups.
Asking $40 plus post.
PM me,
gb.
Excellent eyepiece for the money.
Sharp, with plenty of eye relief for a 9mm.
Just a bit of astigmatism way out near the field edge.
Plus:
This 8mm TMB series II Planetary has good centre sharpness and again there is plenty of eye relief.
But it has a problem with astigmatism starting about 50% from centre of field.
For this reason I am giving it away free to the purchaser of the 9mm.
If you have a slow scope (>=f10) or a tracking scope you probably can live with it's limitations.
Both come with box and caps and feature twist up eye cups.
Asking $40 plus post.
PM me,
gb.