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Ethos redundancy?

Started by Steve Nightingale, 01/22/2010 05:53PM
Posted 01/22/2010 05:53PM Opening Post
Hi Folks,

Looking over my eyepiece case today and got to thinking about duplicate (or close) eyepiece focal lengths I have. What got me thinking is that I'd like to add another Ethos or two; I'm the kind of guy who can usually squirrel away 100 bucks or so every month to get an occasional astro toy---so selling a couple things would move things along.

For example, I have the 17 Ethos and the 18 Radian; I haven't actually taken the time, or had the weather, (yet) to really compare them. Does anyone have an opinion on whether the Radian should go?

If I was able to get the 21 Ethos,should my Orion 22mm Superwide (65 degrees, 20mm eye relief) go?

If you had a 10 Ethos, would you sell your 10mm Radian?

I do wear eyeglasses, and do enjoy the long eye relief eyepieces. OTOH, I enjoy my 17 Ethos and don't mind moving my head around to get it all in.

Certainly eyepieces are a personal preference, but I would enjoy the insights some of you might have!

Thanks,

Steve
Posted 01/22/2010 06:32PM | Edited 01/22/2010 06:32PM #1
Hi Steve,
I would sell the 10mm & 18mm Radian as well as the Orion 22mm. Then the 10mm, 17mm and 21mm Ethos would easily replace them.
The additional FOV and sharpness of the Ethos will make the others redundant, if you were to purchase them.

[SIZE="Large"][/SIZE][COLOR="Blue"][/COLOR] Floyd Blue grin
Amateur Imager
Posted 01/23/2010 09:28PM #2
Hey guys,

Just remembered I have another 18mm---a Criterion 18mm "A.R." ("achromatized ramsden")which came with my Criterion RV-6 back in the 60's.

Maybe I should get rid of my 17mm Ethos.........

Back when I was in high school and got the RV-6, that was my "wide field" eyepiece! What did I know?

smile

Steve