|
Sirius 38mm... it's clear & gives a full fov to an 8" SCT with 2" visual back & it was relatively inexpensive at $159 (from memory), it's no UWA or ES but, it does it's job & the views are pleasant enough (well, to my eye)... I can't say it's sharp to the edge or anything (I seriously doubt that it is) because I don't really do my viewing out to the edge so much anyways.. well except on big nebs... & nebulosity doesn't really look 'sharp' as such anyways...
Will be crap in a fast Newt though...
Furthest I pushed my Meade APO when I owned it was 178x, with my 6.7 UWA coupled with powermate... I thought the view was superb but, that's only just over theoretical max of 160x....
I've got some shorter focal length EP's now; 6mm Fujiyama ortho & an el cheapo Celestron 4.7mm kit EP I got in a bundle of other stuff...
The ortho's are exceedingly good planetary EPs but... nil, nada... zero eye relief, particularly down at 6mm.. I'll bung it in my powermate one night.. that'll give me 200x.. see how it goes...
The celestron with the powermate would technically give me 300x but, I haven't actually used that EP in anything since I got it so.. I'm not even sure if it will be any good at it's native FL to be honest...
I don't own anything decent below 6mm, with the 2.5x powermate I don't feel I really need to...
I've read a lot of different opinions on the Meade UWA's some good, some not so... I do believe the 6.7mm is one of the originals that were actually made by the chap that then formed ES.. I believe the later ones I've got are possibly made at a different company later on... with maybe a slight design change; I'm not really sure on that... as you probably know, it's all but, impossible to get definitive design info on pretty much all EP's.... the manufacturers rarely if ever state their exact design... All I know is that I fell in love with my original 6.7mm & the rest that I acquired from the US late last year (new... sadly not made anymore, so lucky) definitely do not disappoint...
Cheers
|