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14m to 17mm binoviewer pair

Started by btom54, 08/23/2006 12:25AM
Posted 08/23/2006 12:25AM | Edited 08/23/2006 12:25AM Opening Post
Hi all. Looking for recommendations for binoviewer pair in the range 14mm to 17mm. Minimum 10mm eyerelief for something like a plossl. Prefer 60* plus FOV for general viewing but more concerned about performance for planetary and lunar viewing than for DSO. Must be good at the edge at F/7 (TEC 140 refractor). These will be used in a AP/Baader MarkV with and without barlow/corrector. My inter-occular seperation is 60mm so small is good! My current monocular stable includes 24mm pan, 18mm meade UWA, 13mm type 6 nag, 11mm type 6, 7mm type 6, 5mm type 6, and 4mm BO/TMB planetary. In the past I've owned and liked the UO volcanic top orthos but these don't cover the range of interest. Experience with these suggest that somewhat less than 10mm eye-relief is OK for a volcanic top eyepiece (the 9mm ortho was very comfortable). I've also owned and liked a 32mm TV plossl but as I recall useable eye-relief in the 15mm plossl is below 10mm. I'm really looking for something with the performance and comfort of the BO/TMB for binoviewing. I hope this isn't a futile quest. Thanks in advance.

Tom.
Posted 08/23/2006 02:23AM #1
I can't say enough about my 2 X 16mm T6 Naglers. 123X - 185X while viewing Jupiter and Saturn or flying over the moon is incredible.

I use an 2X - 3X multi OCA and have not noticed edge issues on my TEC140.
Posted 08/23/2006 03:22AM #2
Hi Benjamin,

The 15mm TV plossls are a nice bino pair. Pretty reasonable in price and very sharp. Floyd is correct about eye relief though. I have a pair of Nikon 14mm widefields and like them the best of all I have tried in 14mm to 18mm: 20mm eyerelief, 70 degree field of view and very sharp. A bit costly new from APM but very reasonable used. Best view of the Moon I ever had was through a Baader MK V, 14mm Nkons and a Takahashi FS-152.

Larry
Posted 08/24/2006 02:06AM #3
Thanks to all who responded. I'll probably start with 15mm plossls and possibly later look into the 14mm radian or perhaps the 14mm Denks. I was surprised no one suggested these. Has anyone here used the 14mm denks? Thanks.

Tom.