PENTAX smc XW16.5-2-Zoll-Okular für astronomische Teleskope. Extrabreites 85° scheinbares Gesichtsfeld, 20 mm Augenabstand, Original Mehrschichtvergütung, Wetterfeste Konstruktion, Made in Japan
【Gesichtfeld von 85°】Der größte Sichtwinkel in der XW-Serie, sehr gut geeignet für die Beobachtung von Nebeln und Sternhaufen
【Neues optisches System 】7 Elemente in 5 Gruppen, das die herkömmliche XW-Serie übertrifft, um scharfe Sternbilder bis zum Rand des Sichtfeldes zu erhalten
【Wetterfeste Konstruktion】 Zuverlässig für die Betrachtung bei jedem Wetter. Die XW-Serie verfügt über eine wetterfeste Konstruktion der JIS-Klasse 4. * Das Okular kann nicht unter Wasser verwendet werden.
Specialty magazines have done the technical reviews - and they're good. I use this on 65mm and 80mms pentax scopes and on my celestron c5 spotter (small cat telescope). There is occasional kidney beaning with higher magnifications (really outside intended ranges) and looking at the moon absolutely requires a filter. But this is all expected. I love this thing!
I gave it 5* for it's overall quality and construction. This is much better than a zoom, which comes standard on most scopes. It is fully multi-coated, (the best), has a sharp image with good brightness and light transmission. I do not see any aberration's. It also has good eye relief- 20mm. It is waterproof and fog proof- some other telescopic eyepieces by third parties are not waterproof- read the fine print.This is a perfect match for the Pentax scope 65EDA or 80EDA- buy the body only and then buy a quality eyepiece like this. It is easy to install on a spotting scope or telescope. The XW series is the top line Pentax eyepieces. The XF series is a step down, but also good quality. It was shipped in a very sturdy protective case that you can use to store or transport it in. It weighs approx 12.8 oz, so on a Pentax PF-65EDA scope, the total weight is over 3 pounds. Combined with a Pentax PF-80 EDA, the unit weighs over 4 pounds. I use it for birding and it is great.
Huge improvement from standard lenses that come with SCT telescope and very sharp image to the edge. Jupiter never looked this good and when I tested it the seeing conditions were average or below average.
I bought them as a present to myself. The eyepiece does work very well with the eye relief I was expecting. Have tried the eyepiece for a little bit but hope to use the eyepiece more in the summer.