Price Range Search

More Information Price $149.00 List Price $240.99 Field of view 70° Eye Relief 16mm Focal Length 8mm Number of optical elements 8 Barrel Size 1.25"/2" Weight 22 oz. Warranty 1 year Telescope Eyepiece Formula To calculate the magnification and approximate actual field of view of this eyepiece on your telescope, enter the focal length of your telescope below and press the "Calculate" button. mm

With a usable eye relief of 16mm (quite long for an eyepiece of this focal length), the 8mm Ultima LX will provide nearly unvignetted views for most eyeglass wearers, although some vignetting is unavoidable if you must wear eyeglass while observing due to severe astigmatism. There is a slight loss of contrast when compared to an eyepiece with fewer elements, due to the additional lenses needed to achieve the unique combination of very short focal length and very generous field. The loss is minimal though, on a par with the contrast loss in an eyepiece/Barlow combination with the same effective very short focal length.

Dual concentric barrels let you use this eyepiece in either a 1.25" star diagonal/focuser or a 2" star diagonal/focuser.

At 22 ounces and 5.4" long, the 8mm Ultima LX is a very substantial eyepiece. Be sure that your star diagonal is very firmly locked in place in your scope on your scope before inserting this eyepiece to avoid the chance of the diagonal swiveling unexpectedly and the eyepiece falling to the ground.