Posted 14 August 2013 - 02:59 PM
I will add that I will mainly use them in my 8" SCT and maybe in my new AD10 that I just bought.
So I am thinking that I will need something in the 20mm range to use with the power switch. I have a Meade 20mm SWA that performs really well and just bought a second one to make a pair. Well, good idea, but they are too fat to merge properly and don't fit my nose comfortably like the WO pair do. I like to bury my eyes into the eye cups. I suppose I could remove the outer housing to make them thinner , but then I would have to get some kind of eyecups for them. I have seen a bunch of posts from others who had put them on a "diet" so to speak.
I also have a 19Pan that I could pair up, but will cost $250 new and $200 used IF I could find one, so maybe not a good solution.
I see the other choice is the ES 20mm 68* probably the same view as the Meade for $100 ea. and wonder how much thinner they are from the ones I have now? The Meade's where very close to merging comfortable, so perhaps just a few mm thinner withe the ES will fill the bill. Just wondering if anyone else is using them for BV?
The next few options are:
GSO Superview 68* @ $45 each = $90 pair
Agena 20mm 72* @ $47 each = $94 pair
WO Swan 20mm 72* @ $79 each = $158 pair
All three above seem very much alike from the pictures.
I will add that I currently have a pair of Brandon 16mm and they form a perfect circle, but narrow at 42* which is ok for planets and close up's of the moon, but not DSO's to good I would expect.
The other pair I have id the basic Meade 26mm SP at 52* and there just ok.
So looking to hear from some of you BV folks as what you think my best options are without spending a whole lot more than what I have already done....I should have not gone to that NEAF show!
Thanks in advance.
Posted 14 August 2013 - 04:20 PM
One thing to be aware of if buying used 24mm Pans is to make sure they match - the barrel undercuts differ slightly old v. new, and they can seat into the binos differently. There also will be very slight vignetting at the lowest power setting of the Denks but most people don't notice or like me are not bothered, it's very slight.
Posted 14 August 2013 - 05:47 PM
Posted 14 August 2013 - 08:03 PM
... if you want even more power you can match up your 13T6 (which are also AWESOME bino pairs).
Listen to Johnny.
Posted 14 August 2013 - 08:47 PM
I have since moved on to Denk D21 eyepieces for my binotron, but the Agena SWA 20mm eyepieces got a lot of use before I moved into "premium glass" territory. The Agenas are very light weight, and quite narrow for their big FOV, and had decent enough eye relief (I used them w/o glasses).
I think the Agena 20mm will work very well in your 8" scope. The 70 degree FOV seemed positively enormous in the binoviewers. They're quite reasonably priced and work well enough to see if you like that focal length. As to the 19mm panoptics, they'll probably be perfect aside from possible eye relief and availability. The 24mm pans will likely vignette, maybe even in straight through mode, but for sure in reducer mode; bad enough vignetting to bother you is a different story...
I find that the D21s are the perfect eyepieces for my Binotron. Comfortable eye relief, enough FOV, excellent baffling, great transmission, no ghosting or false color, little to no distortion, and all that good stuff you expect from premium glass. They do not vignette in reducer mode, and have nice big eye lenses. While not cheap, I find them to be well worth the price of admission.
Long story short, if money is tight, I think the Agena SWA 20mm eyepieces are a great DSO set. Try not to use them on the moon or planets (I'd get a halo and some false color around really bright objects like the moon or Saturn/Jupiter, and reflections from my eye as well), but for glob hunting and such, they were great. If money isn't too tight, then I can heartily say the D21s and binoviewing are a sure fire winning combination.
Posted 14 August 2013 - 08:53 PM
I do like my 19mm Pan as they are very lightweight but maybe better to go up to the 24's for a wider image. I have heard a lot of good reports about them in a BV...BUT also for the new ES 24mm 68* at less than half price of the Pans?
Kutno, thanks for your response as you sound like you know what you are talking about!
I don't wear glasses at the eyepiece, but think I will start wearing contact's to correct my slight astigmatism and not have to take off my glasses to look up at the sky and take them off to look into the scope.
Posted 14 August 2013 - 10:28 PM
Posted 15 August 2013 - 07:04 AM
Yes as far as the 16 Brandon's are concerned they are nice and light and I get a perfectly round image in the BV, but narrow FOV. I picked up a second one at NEAF at the same time as the Denk's, but the weather has been so bad this summer, I have had hardly any time to try them out.
Maybe slimming down the Meade 20MM is not a bad option as I should be able to put the shroud back on them if I want to sell them....hmmm!
Posted 15 August 2013 - 07:34 PM
Posted 16 August 2013 - 07:09 AM
Posted 16 August 2013 - 05:50 PM
Posted 16 August 2013 - 07:31 PM
Posted 17 August 2013 - 07:31 AM
I think I may just put the Meade 20 SWA's on a diet to lighten them and make them skinnier.
Posted 17 August 2013 - 04:46 PM
Posted 18 August 2013 - 07:55 AM
What through me off is that Astronomics has it listed at 42* FOV and they need to correct that.
Posted 18 August 2013 - 07:44 PM
Posted 18 August 2013 - 09:43 PM
For me the best eyepieces with binoviewers are the 19 and the 24 panoptics and the 12.5 Takahashis. I also have the Televue plossl 25 and the 32, the 25 are very good eyepieces, the 32 are good but you have to find the right position for the eyes just to have a confortable view,
Posted 19 August 2013 - 07:22 AM
So you are the perfect person to ask, I have the Denk2 PS and haveing problems getting them to focus in my 10", what are you using to get the Binotrons in focus? I don't want to use a 2x barlow if I don't have to.
Posted 19 August 2013 - 11:43 AM
Posted 19 August 2013 - 12:01 PM
The scope did come with a 35mm extension tube, so maybe that will work.
Posted 20 August 2013 - 06:53 AM
Next I tried the Denk2 PS and that would not come into focus straight through or with either of the arms inserted.
Posted 20 August 2013 - 05:10 PM
Posted 21 August 2013 - 10:34 AM
I checked WO website and they have an extension tune they sell to help get to focus, but still not sure it would work. May have to send them an email about it. I don't know what the big deal is with this focus issue is as they sell thousands of these BV and many are probably being used in reflector scopes like mine??