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Thread: Need new EP for 10 inch Dob

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    Default Need new EP for 10 inch Dob



    All,

    Some of you have likely followed my search to buy my first scope on the Beginners Forum over the last month. I settled on the Apertura 10 inch Dob. Thanks to Roger for talking me off the ledge last week with a collimation primer. And another great user in that forum pointed me to my local club, and I attended a scope clinic and viewing last night for the first time. Several members used my scope and by the end of the night we all agreed my scope is great, nothing wrong but the user! I also learned from a member that since I have astigmatism I'll see MUCH better by leaving my glasses on, and I did!

    So, some advice, please. I've read a few other threads, and received advice in a slightly different context on the ES 82 series EP's. I've done a little research. I think you want to know:

    I have been focusing on planets for now, but would like to move on to DSO's soon.
    Stock Plossl 9 mm and 30 mm came with the scope.
    I have a basic Highpoint 2x Barlow I ordered with the scope.
    My scope has a two speed Crayford focuser.

    Last night after spending time with club members I was able to see for the first time 3 moons of Jupiter, as well as some banding. I was also able to see the rings of Saturn, maybe the Cassini division, and definitely Titan. I was using a club Meade 18 mm EP, I think I was told it was in the $300 range. It had some type of adjustable eyecup for different exit pupil sizes, if that sounds right? I know it was much easier to use than my stock EP's with my glasses on. But after I kept my glasses on and was comfortable with what I was seeing, I was then able to switch back to my 30 mm and 9 mm, and saw more than I have ever before, because I also learned to be patient, use the fine focus, look through the atmospheric disruptions to pick out details, etc.

    So, any suggestions on one or two as an upgrade? I know I'm likely looking in the +/- $200 range for each. I don't want to go crazy, but I'm willing to pay for quality that will last, and go slow with accumulating them. Any advice appreciated.

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    Default Re: Need new EP for 10 inch Dob

    Well the ES 18mm 82 is the ONE EP I would not be without. It performs extremely well in your scope.
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    Default Re: Need new EP for 10 inch Dob

    So that scope will support any awesome eyepiece you can afford. I started collecting good eyepieces in the mid 1980's. A few years ago I got my last eyepiece a Televue Ethos 6mm. But it was expensive. It is essentially my most used eyepiece at star parties. The extreme eye relief is worth the expense for me. But really I would look to get the best eyepiece you can afford and only get 3-4 of them. I no longer use a barlow for night viewing.

    Good luck.
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    Default Re: Need new EP for 10 inch Dob

    Have you thought about the TV Delite series? 20mm eye relief and 62° FOV, which for me is an ideal field. Around the $US250 mark, so top end of your budget, but they have great reviews, and should give a sharp, contrasty field right to the edge and last you forever. I have a 13mm Nagler and a 20mm ES 100°, but I find that for me it is difficult to see the edge of the field in either of them (especially if I have my glasses on!), while a 62° field works perfectly for me. I enjoy the ES 100° for occasional use, but I won't be buying any more 100° eyepieces. (I actually sold a 13mm Ethos in favour of my 13mm Nagler.)

    I haven't used the ES 62°, but I suspect they would be well worth checking out too. Very good price! Eye relief is not quite as good as the Delites, but adequate if you are wearing glasses.

    All the best,

    Dean
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    Default Re: Need new EP for 10 inch Dob

    My standard set with my 12" f5 Dob consists of Tele Vue Panoptics and Delos. I'd recommend the 19mm Panoptics over the 17.3 mm Delos. The 19mm Panoptic is about $250.

    An added plus of the Tele Vue line is that many of the eyepieces they sell can have an add on lens, the Dioptrix, that permits folks with astigmatism to observe without glasses. Panoptics, Delos and Delites can be used with Dioptrix.

    Tele Vue Optics: Tele Vue Eyepiece Specifications
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    Default Re: Need new EP for 10 inch Dob

    Sorry to be negative: but my experience with a 19mm Panoptic with my f5 scope was not good. I tried a 24mm Panoptic at the time and it was great, but the 19mm did not perform well. It was reasonably sharp in the centre, but dropped away badly from about 1/2 way to the edge of the field. I tried it in a variety of scopes and found it to be wanting; and a couple of very experienced fellow observers agreed with my assessment. I was very disappointed at the time, because I had seen a number of very positive reviews, with some people claiming it was one of the best eyepieces ever made.

    This is the only TV eyepiece that I have ever tried that I have had issues with, and I ended up sending it back to the supplier and bought an 18mm Radian instead. Maybe I got a Friday afternoon one, as it had an air bubble in the glass as well...

    I am guessing not_Fritz's experience with it has been better than that.

    - Dean

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    Default Re: Need new EP for 10 inch Dob

    Quote Originally Posted by DeanD View Post
    Sorry to be negative: but my experience with a 19mm Panoptic with my f5 scope was not good. I tried a 24mm Panoptic at the time and it was great, but the 19mm did not perform well. It was reasonably sharp in the centre, but dropped away badly from about 1/2 way to the edge of the field. I tried it in a variety of scopes and found it to be wanting; and a couple of very experienced fellow observers agreed with my assessment. I was very disappointed at the time, because I had seen a number of very positive reviews, with some people claiming it was one of the best eyepieces ever made.

    This is the only TV eyepiece that I have ever tried that I have had issues with, and I ended up sending it back to the supplier and bought an 18mm Radian instead. Maybe I got a Friday afternoon one, as it had an air bubble in the glass as well...

    I am guessing not_Fritz's experience with it has been better than that.

    - Dean
    Yep. My experience is that the 19mm Panoptic is one of the best eyepieces ever made. In my f5 scope it's sharp to the edge and does a brilliant job. Tele Vue does quality control inspection on their offerings. So while it's not impossible that something slipped through, damage in transit can't be ruled out. I've had three examples of the 19mm, one for monocular and two for binocular use and all were perfect.

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    Default Re: Need new EP for 10 inch Dob

    Quote Originally Posted by not_Fritz_Argelander View Post
    Yep. My experience is that the 19mm Panoptic is one of the best eyepieces ever made. In my f5 scope it's sharp to the edge and does a brilliant job. Tele Vue does quality control inspection on their offerings. So while it's not impossible that something slipped through, damage in transit can't be ruled out. I've had three examples of the 19mm, one for monocular and two for binocular use and all were perfect.
    So you reckon that the one that was for sale here yesterday locally for $A200 ($US146) would have been worth grabbing then?

    Oh well... lucky I am happy with what I have currently got!

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    Default Re: Need new EP for 10 inch Dob

    Quote Originally Posted by DeanD View Post
    So you reckon that the one that was for sale here yesterday locally for $A200 ($US146) would have been worth grabbing then?

    Oh well... lucky I am happy with what I have currently got!
    Good you're happy with what you have.

    Now that's a really low price for a 19mm Panoptic new! It's more likely used? I'm not going to speculate on that one other than to make the joke that maybe it's your discard coming back to haunt you.

    It's actually as a result of what you've been saying about the bad experience you've had with the 19mm Pan that I did the head to head with the 17.3mm Delos recently. The Pan definitely won out in my Z12. So I'm thinking the Delos is redundant, maybe. The main obstacle to letting it go is my completeness impulse. It's also very nice.

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    Default Re: Need new EP for 10 inch Dob

    Great info so far from all four of you. I'll check them out, do more research, and update you when I make a decision.

 

 
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