Harry Siebert Optics UltraPlus 17.5mm, 2 inch

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Brand and Model:	Harry Siebert Optics UltraPlus 17.5mm, 2 inch
Price ($USD):	$189.00
Type:	Misc Wide Angle
Focal Length:	17.5 mm
Barrel Size:	2
Apparent FOV:	65.0 degrees
Field Stop Dia.:	0.0 mm
Eye Relief:	15 mm
Elements:	4
Weight (lbs):
Description:

Vote Highlights

Harry Siebert Optics UltraPlus 17.5mm, 2 inch

Used in an F/10 8" SCT, 10" Dob. Also binoviewing. I spent an evening swap comparing this in the SCT with a Pentax 14XL and a Nagler 17 on the Ring and a globular cluster. The Siebert UltraPlus had dark, flat, crisp views. Fainter stars were visible on a darker background than the Pentax, and the eyepiece was only slightly edged out by the Nagler's bigger FOV and a slightly smoother, velvety image. Quite credible views with good color/contrast... given the small size/weight and price of the Siebert.

These are 1.25" eyepieces in a 2" housing for ease of use. Fit and finish might be a 7 or 8.

In the bino the light weight is a boon... and the images were even MORE velvety and black, black, black!... with crisp, stark images of very faint objects. Great contrast!

A very good value in my opinion.

Overall Rating: 10
Optics:10 Value:10
Weight: 6 (Veritable Vote)
Date: 02/12/2003 10:58:17 pm PST
By: kkirksea
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=193806

Reply Replies: 0

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