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xcy
sage
Reged: 05/15/06
Loc: Europe
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Sky-Watcher Planetary WA?
#5433072 - 09/21/12 04:25 PM
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Is anyone using the following eyepiece and can comment about its performance?
Sky-Watcher Planetary WA
The same eyepiece is sold under other brands too.
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BillP
Postmaster
   
Reged: 11/26/06
Loc: Vienna, VA
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Re: Sky-Watcher Planetary WA?
[Re: xcy]
#5433080 - 09/21/12 04:36 PM
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Looks to be the TMB Planetary line rebranded. Can't imagine the performance would be any different.
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xcy
sage
Reged: 05/15/06
Loc: Europe
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Re: Sky-Watcher Planetary WA?
[Re: BillP]
#5434484 - 09/22/12 01:38 PM
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What sort of performance should I expect from these eyepieces? Especially from the 7mm and the 5mm?
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BillP
Postmaster
   
Reged: 11/26/06
Loc: Vienna, VA
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Re: Sky-Watcher Planetary WA?
[Re: xcy]
#5434648 - 09/22/12 03:30 PM
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The performance of this design (lots of rebrandings) is fair to perhaps good I would say, depending on the application. They have a reputation of having a little softer image than one would expect or at least compared to a typical quality ABBE Ortho. They also have a reputation of having a little bit of flare when a very bright star or planet in near the FOV. Scatter is a little under-par so would put it at moderate level. Eye relief is fairly comfortable though at around 16mm and it has a twist up eye guard which is nice. They are usually advertised as having a 60 deg AFOV but more usually they are around 58 degrees.
I think calling them a "planetary" is a stretch, however a fairly good general purpose eyepiece with wider AFOVs than the typical Plossl. Think of them as a solid "basic" eyepiece that is comfortable. Nothing to write home about, but also nothing to overly complain about, especially given their typical $50 price.
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