WTB: Orthoscopic Eyepieces

ariefm71 · Post by **ariefm71** » Sun Mar 12, 2006 1:16 pm

Anat, you can test it first, we'll cover the shipping to sg. Thanks a lot for ordering for us!

cheers,
Arief

jermng · Post by **jermng** » Sun Mar 12, 2006 6:47 pm

Anat, same here.

Thanks for ordering for us, you can test it first and do a comparison.

You can ship the Pentax 8XP here if you don't mind .... HAHA ... *kidding*

anat · Post by **anat** » Mon Mar 27, 2006 3:15 pm

Ready for the test

Anat

ariefm71 · Post by **ariefm71** » Mon Mar 27, 2006 5:05 pm

Nice! btw how much is that eyepiece with the $ sign?

anat · Post by **anat** » Mon Mar 27, 2006 6:09 pm

S$240

ariefm71 · Post by **ariefm71** » Tue Mar 28, 2006 2:17 pm

Anat, pls let us know the verdict of the shootout :-)
The 7.5mm, 8mm, and 9mm will have almost the same tfov, which one you will keep?

anat · Post by **anat** » Thu Apr 06, 2006 8:42 am

The sky was clear yesterday after months of political clouds

So I had a chance to test planetary eyepieces. The photo shows the lineup:
WO UWAN 7 mm
Circle-T Ortho 7 mm
Tak LE 7.5 mm
Televue Plossl 8 mm
Meade UWA 8.8 mm
Circle-T Ortho 9 mm

anat · Post by **anat** » Thu Apr 06, 2006 9:25 am

The eyepieces were tested by 7 people on the moon and Saturn. The homemade TMB 80/480 Powermated 2.5x were used as the test rig.

Viewing comfort:
Meade8.8 > WO7 > Tak7.5 > Or9 > Or7 >> TV8

Sharpness and contrast:
Honestly, we couldn't see difference at the first glance. TV8 secures a place above other eyepieces. TV8 is slightly sharper than the others. I saw no lateral color in Or7 and Or9 as opposed to the review by other CN reviewers.

Price ratio (compared to Ortho (US$35 in Japan))
Or7 and Or9 = 1
TV8 = 2.5
Tak7.5 = 5
WO7 = 6
Meade8.8 = 6

Additional comments:
I realize that the U-shaped undercut used in Or7, Or9, and TV8 may get stuck with a compression ring when removing. The flat barrel (Tak7.5) or V-shaped undercut (WO7) work better with a compression ring.

My verdict?
If you want to see good planetary views, the Ortho is more than adequate. You pay the extra for viewing comfort. It is the conclusion that has been drawn by many people so far

Seeing is believing.

Clear skies,
Anat