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Yes, I know about yours, but even that will yield a factor of 1.43x with a BarAdv (4,5mm from focal plane to shoulder, 28mm for your adapter, and 12mm from the threads of the BarAdv to its principal plane, the sum divided by 102mm, and then +1).

And yours is shorter than the commercial ones I know. I'm simply puzzled by what RAKing and Bob S. are doing.

If I remember the Barcon element well, it doesn't fit inside a 2" barrel, so it's bound to end up a lot further from the eyepiece's focal plane. Or does it have different housings, one of which is more narrow than a 2" barrel andallows it to go into Markus's 2" adapter?

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Which adapter is it? As I said, mine is 42.5mm long so if the 2" BarAdv is simply at the end of it, it's quite far from the Leica's focal plane.

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Astro Buds, I had done some sky meter readings this morning when I bagged the 15th magnitude I star in the trap. The SQM reading on my sky meter was 20.92 that Cruxis translated into a Naked Eye Limiting Magnitude of 6.4 and Telescope Limiting Magnitude of 15.2 mag. The Leica ASPH coupled with a superb Lockwood primary/secondary was able to present a point of light that was only .2 below its theoretical limit. This boggles my mind because I am currenlty fighting a healthy dose of cataract problems with my eyes that was recently diagnosed and yet my eye was able to discern this faint point of light with the help of superb optics and very pleasant eye relief. Andreas observations about this eyepiece being as good as a Zeiss Abbe Ortho II is certainly gaining credence in my book<g>. I was, during parts of this observing session, using a pair of 16mm ZAO II's in a Baader Mark V and the views were brilliantly neutral renditions of the planet with a light blue festoon and tons of white ovals linked in one of the equatorial bands. I don't think they will be going anywhere because unlike Tammy, there is no way that my IPD would allow for binoviewing ASPH's. Bob

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Is the Leica ASPH zoom suitable for use with eyeglasses ? What is the eye relief stated as ?

That's a deal breaker for me. Gotta be able to use it easily with glasses on.

Cheers

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Astro Buds, I had done some sky meter readings this morning when I bagged the 15th magnitude I star in the trap. The SQM reading on my sky meter was 20.92 that Cruxis translated into a Naked Eye Limiting Magnitude of 6.4 and Telescope Limiting Magnitude of 15.2 mag. The Leica ASPH coupled with a superb Lockwood primary/secondary was able to present a point of light that was only .2 below its theoretical limit. This boggles my mind because I am currenlty fighting a healthy dose of cataract problems with my eyes that was recently diagnosed and yet my eye was able to discern this faint point of light with the help of superb optics and very pleasant eye relief. Andreas observations about this eyepiece being as good as a Zeiss Abbe Ortho II is certainly gaining credence in my book<g>. I was, during parts of this observing session, using a pair of 16mm ZAO II's in a Baader Mark V and the views were brilliantly neutral renditions of the planet with a light blue festoon and tons of white ovals linked in one of the equatorial bands. I don't think they will be going anywhere because unlike Tammy, there is no way that my IPD would allow for binoviewing ASPH's. Bob

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Thanks for the beautiful reports, Bob.

How about starting another thread labeled "Leica ASPH Zoom in a TEC 160FL"? This combo will be as close to perfection as possible.

Andreas

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Andreas, I have yet to put the ASPH in my TEC 160FL. With 16.5" of aperture vs. 6.2", it is sometimes difficult to carry the refractor down from my study and mount it. However, I need to see the magic of the ASPH in the TEC for sure! I have not compared the ASPH monocularly with the Zeiss because I have been playing so hard with e Baader Mark V's. For lunar/planetary observation, I am finding that what I give up in light throughput and sheer monocular resolution is made up for and then some on the planets/Moon with binovision. I promise in the weeks to come to get that beautiful Leica into my beautiful refractor. Bob

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