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Harry Siebert Optics Standard 7mm

Purchased approx. 18 months ago. Talk about minimalist- mine is roughly finished, is not threaded for filters, and was supplied without eyeguard, endcaps, or even a cardboard storage box. The current ones appear to have been upgraded in appearance and packaging. I assume that their optical performance remains similar.

Inexpensive, and provides wide fields as advertised, with notably excellent brightness. (As someone else noted, the large eye lens does tend to pick up glare from streetlights and other external sources.) Sharpness and contrast aren't particularly remarkable, though they are certainly acceptable. Field curvature is slight. I don't wear eyeglasses when observing and don't usually have problems with tight eye-relief. However, I find the effect of the Siebert's minimal eye-relief, in combination with the wide field-of-view, to be tedious and annoying. Difficult to put into words, this effect is somewhat like trying to watch a large television while sitting 3 inches from the screen. For this reason, I consider the Siebert 7mm to be tolerable rather than enjoyable. That said, it's not a bad choice in comparision to what else is out there at the price, especially if you absolutely must have a wide field-of-view.

Overall Rating: 7
Optics:7 Value:8
Weight: 1 (Unreliable Vote)
Date: 05/03/2004 06:40:25 am PST
By: Anonymous (xxx.xxx.201.82)
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=357284

Comment to vote dating 5\03\04

It used to be a roughly finished eyepiece with a less then workable filter attachment. If you return it I will put it in an updated aluminum body with standard filter threads at no charge. My apologies


Harry Siebert

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