Has anyone had any experience using these eyepieces? Orion states that they have a 66° apparent field of view. How well would they perform in a f4.7?
Expanse Eyepieces
Started by orion8, 09/29/2003 04:30PM
Posted 09/29/2003 04:30PM
Opening Post
Posted 09/29/2003 06:48PM
#2
I have the Adorama clones, the 6mm, 9mm, and the 15mm. The 6 has some ghosting problems, the 9 is great, the 15 is decent in an F5 10 inch. I believe the ghosting problem in the 6 has been fixed in the newer eyepieces.
Consider Scope Stuff, $40 shipped.
jon
Consider Scope Stuff, $40 shipped.
jon
Posted 09/30/2003 12:06AM
#3
I own the 9mm, 15mm and the 20mm Expanse EP's. I have the Orion Shorty Plus Barlow as well.
I only use my Expanses. With the Barlow I basically have 4.5, 7.5, 9, 10, 15 and 20mm EP's...all with a wider field than Plossls.
I think they are all quite clear to the edge with alot of contrast. It is so nice to have higher magnification and yet have a wider field and good eye relief.
I really want to get some premium EP's (both 1.25" and 2"), but until I can save up some money for those, the Expanses are great for me. I'm very happy with the views through them, although I don't know about the 6mm.
I only use my Expanses. With the Barlow I basically have 4.5, 7.5, 9, 10, 15 and 20mm EP's...all with a wider field than Plossls.
I think they are all quite clear to the edge with alot of contrast. It is so nice to have higher magnification and yet have a wider field and good eye relief.
I really want to get some premium EP's (both 1.25" and 2"), but until I can save up some money for those, the Expanses are great for me. I'm very happy with the views through them, although I don't know about the 6mm.
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