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Entry: Astronomy:Equipment Reviews:Eyepiece Reviews:Harry Siebert Optics UltraPlus 42mm

Anothere great low power eyepiece from Siebert. I use this eyepiece in my 6" APO refractor for wide sweeps of star fields. The on axis and off axis sharpness is just like all the Ultra Plus 2" line. Just outstand. No blackouts, no kideny beaning.

don

Overall Rating: 10
Optics:10 Value:10
Weight: 10
Date: 01/04/2003 01:42:58 pm PST

Replies: 0


Entry: Astronomy:Equipment Reviews:Eyepiece Reviews:Harry Siebert Optics Standard 12.5mm

Outstanding planetary eyepiece. Nice and sharp all the way to the edges. I also use this eyepiece on globular clusters. If you want an outstanding planetary eyepiece, than get one.

Overall Rating: 10
Optics:10 Value:10
Weight: 10
Date: 09/21/2002 05:33:54 pm PST

Replies: 0


Entry: Astronomy:Equipment Reviews:Eyepiece Reviews:Harry Siebert Optics UltraPlus 32mm, 2 inch

I've been using this eyepiece in the Siebert two inch Bino-Viewer. This 32mm eyepiece is amazing, with great contrast and very sharp images. It has no blackout and no kidney bean affect at all. It walked all over my 30mm two inch Vixen LV, as the Siebert was brighter and had very noticeable contrast advantages on Nebulas, Open clusters, and Globular clusters.

Overall Rating: 10
Optics:10 Value:10
Weight: 10
Date: 09/15/2002 01:04:31 pm PST

Replies: 1


Entry: Astronomy:Equipment Reviews:Misc Accessories:Harry Siebert BinoViewer 2"

Being the first to person get this two inch Bino-Viewer, all I can say is ammazing views. The views on the double cluster were out standing, but I'm still lost for words. M13 last night in the 9" APO was like I've never seen before. The flat field of view and seeing M13 with both eyes was WOW!!. Using this bino-viewer I've noticed that M2 and M13 resolved at lower powers than when using a single eyepice. The outer region's of M2 were resolved using the Siebert 32mm Ultra Pluse two inchers at a power of 88x in the 9" APO. At 201x the view was just mind shattering. M13 at high power ( 320x ) was resolved like I've never see in my 30+ years of observing globular clusters. The dark lanes that I've seen before in the resolved core was seen more easily and in more contrast. The chain star that run up through the core to the outer regions, stood out in 3D form. The view of M8 was jaw dropping. Nebulosity regions were seen easily and had more contrast than with a single eyepiece. I only hope that Bino-Viewer #2 that Todd Gross will get to review is as good as mine.
note: Two inch Bino-Viewers are a big step up from 1 1/4" ones, that mainly work great on the planets. These two inch bino-viewers so far have worked flawlessly on everything from Neb's, Open Clusters and Globular Clusters. As soon as the gas gaints are up all night, I'll be getting no sleep at all.

Overall Rating: 10
Performance:10 Value:10
Weight: 10
Date: 09/14/2002 03:50:56 pm PST

Replies: 1


Entry: Astronomy:Equipment Reviews:Eyepiece Reviews:Harry Siebert Optics Standard 45mm

Tested this eyepiece in a 6" f/8 APO refractor, and a 12" SCT f/10. The views that this eyepiece gave in both scopes was very good. Yes there is blackout if your eye is not center just right. But, with the sharpness of the images across the whole field of view, it is well worth learning to keep your eye center. The coatings are very smooth and the eyepiece has a very rugged feel and look.
Over all, a very well made light weight eyepiece that is more than worth the money that Harry is asking.

Overall Rating: 9
Optics:9 Value:10
Weight: 10
Date: 07/19/2002 12:31:50 pm PST

Replies: 0


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