Re: Leica HC PLAN S 10x/22 (Br.) M, focusable, f=25mm Eyepiece, item #507807
Hello Dean,
this has been just a short test due to the weather conditions we have, so no chance to test it against the CZJ Plössl,
or against the Leitz Periplan GF.
The Leica Periplan GF 12.5x (f=20mm) might be very close in contrast and resolution, but the transmission of light might be lower, my guess.
The closest eyepiece regarding the contrast, resolution and light might be the Leica B 20x WW f=22mm, but as with the sports optics eyepieces, it has the UV (skylight) cut as required for the high color contrast in the long range viewing.
The long focus spotting eyepieces from Swarovski may be a bit behind, even if these are truly great eyepieces.
The Zeiss 23x/30x B WW f=17mm is already too short to take it for a valid comparison
From what I have seen, I would not expect coma or astigmatism on the Leica HC Plan S.
What I have been looking for, it is the ultimate contrast, a good correction, and high transmissivity, - all of them on the blue wavelengths so important for the nebulae and most of the galaxies.
The high resolution down to the Dave's limit is a nice added gift.
I have been tempted to bid for a convolute of boxed Leitz GF Periplans, but looking at the drawer,
I have found out that I already have 8 Leitz/Leica eyepieces.
What I'll eventually add in future, these might be the short focus Leica HC Plan S eyepieces, this would make sense.
Best,
JG
Binoculars: Leica Ultravid 7x42, 8x42HD; Swarovski EL 8.5x42 Swarovision; Nikon 10x70 Astroluxe; Docter Nobilem 7x50 Porro; Jenoptem 7x50W, 10x50W; BA8: 10.5x70, 15x85; 25x100FB, AsahiPentax 8x40, Refractors: Sky-Watcher 150mm/750mm; Leica APO Televid 82mm (25x-50x WW ASPH); EPs:Baader Classic Orthos; Fujiyama ortho, Leica B WW, ultrawide zoom ASPH, Periplan GF, HC Plan S, L; DOCTER UWA; Wild UW mil; Tele Vue Delos, Nagler Zoom, Plössls; Swarovski SW; Pentax XW; ZEISS diascope B WW T*, Carl Zeiss E-Pl; Hensoldt mil; Filters: Astrodon, Astronomik, Baader (CCD), TS; Astrophotography: AstroTrac; Leica R7: Leica 2/50, 2/90mm, 2.8/180mm lenses
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