View Full Version here: : New Eyepiece set ordered
28-02-2011, 04:59 PM
Hi guys just ordered a new set of eyepieces and just wanted to see if anyone has had experience with them before,below are the links to what im purchasing.
William Optics Super Wide Angle Telescope Eyepieces (http://www.ozscopes.com.au/william-optics-super-wide-angle-telescope-eyepieces.html)
Celestron Omni Series Telescope Eyepieces (http://www.ozscopes.com.au/celestron-omni-series-telescope-eyepieces.html)
28-02-2011, 06:33 PM
Dangerous to ask after you've ordered :)
The WO SWAN's, as with other cheaper widefields, provide nice performance in slow scopes but are challenged at the edge of field in fast scopes. I've got a pair of 20mm SWAN's for binoviewer use and they work well with the f/10 light cone.
The Celestron Omni's I think are a basic plossl - they'll give decent on axis performance though the price ($85) is similar to the Televue plossls on special at Bintel. Shorter focal length plossls have very short eye relief - it might be preferable to use a quality barlow with a longer focal length plossl.
28-02-2011, 07:24 PM
i did purchase SAXON 3X 1.25" Achromatic Barlow Lens.
28-02-2011, 09:53 PM
I found a reliable review of the SWAN series here: http://www.cloudynights.com/documents/swan.pdf
By virtue of the slower light cone the barlow should improve performance of the eyepieces in your f/5 scopes and provide longer eye relief than the equivalent shorter eyepiece (assuming the barlow is well made).
I can recommend the high quality Antares 2" 1.6x barlow to you - it would noticeably improve the performance of any of your SWAN eyepieces in your fast scopes - the sharp area of the field would extend further out from the center, eye relief would be extended and the low magnification factor would let you use more of your eyepieces with the barlow. It's also quite a short barlow.
28-02-2011, 10:01 PM
thanks for the tip and i will checkout that link :) im getting the eyepieces for my cousin who just purchased a 8'' dobsonian and have not had any experience with these eyepiece but thanks for the help mate :)
28-02-2011, 10:21 PM
The 9mm is average 15 & 20 are decent, yacht used the 2" version.
The WO onlinecwebsite is usually bestbto order from, they have greatbprices & often shipping isnfree or very low..with our dollar at parity it's a good way to buy WO gear
vBulletin® v3.8.7, Copyright ©2000-2013, vBulletin Solutions, Inc.