15mm 2" Eyepiece decision advice sought

[MarkVIIIMarc]

I am considering the purchase of a 15mm 2inch eye piece for my 1250 mm F5 Zhumell Z10.  There are a couple out there in my price range. 

http://www.universityoptics.com/2inch.html 

http://www.owlastronomy.com/ultrawide.htm

The reason for my purchase is I REALLY enjoy the experience of looking through the 30mm eyepiece which came with my Z10 and would like a higher magnification version.  Yes, I know I could Barlow it to 15mm easy enough, but not 7.5 which I think would fill a hole in my collection. 

My current lenses are: TMB Planetary II 6mm 1.25" (208x), Zhumell Factory 9mm 1.25" (139x), Zhumell Factory 30mm 2" (42x) The 15mm would give me a 83x off the bat and in a couple weeks when I buy a Zumhel 2" 2x Barlow I would have 416x, 278x, 208x, 167x, 139x, two ~83's and a 42x.   The duplication at 83x annoys me but I can't see much of a way around it unless I can find a second hand 16mm Zuhmel Z100 for half price and even then 78x vs 83x doesn't seem to really be that different. 

Do you all think for Jupiter and soon Saturn either 15mm on a 2x Barlow would give a comfortable view at 167 magnification?

Would I be better served with a Russell Optics 10.5, 12 or 13mm? http://www.russell-optics.com/two_inch.html

Are any of those above of equal quality to the factory 30mm I like so much?

Oh, and yes, I am in the U.S.

Thanks for your inputs and clear skies to you all!

 

 

[Joe12345]

The experience with the 30mm will be a mixture between long eye relief and fov, not the 2" fitting. There aren't many decent 15mm EPs out there, lots of 14mms and 16mms though. Here's one, although I don't think it performs very well in fast scopes. If you could stretch to a 14mm, then a baader Morpheus would be good, or even better, a televue delos. If you wanted a 16mm you could go for the maxvision, or the televue nagler 16mm which has a very wide fov but not sure about the eye relief.

[John]

Low cost ultra wide field eyepieces and fast scopes don't mix too well. If you can stick to 60-70 degree apparent fields you will get better defined views across the whole field than at 80+ degrees, if your budget is on the low side.