The new Celestron Ultima Edge eyepiece line is the latest Ultima eyepiece design developed to make sure you see the whole picture. These flat-field eyepieces were created to provide an ultra-sharp, ultra-clear, crisp image from the center all the way to the edge of the field of view. The Ultima is offered in a 1.25-inch barrel with 24mm, 18mm, 15mm and 10mm iterations and a 2-inch, 30mm version.
Each Ultima Edge eyepiece features fully multi-coated optics and a multi-element lens design, maximizing light transmission. Every eyepiece’s main housing is machined from high grade aluminum with a black anodized outer surface. Viewing through the eyepieces is comfortable for both eyeglass wearers and non-eyeglass wearers alike, thanks to the rubber eyecups and long eye relief. On the exterior of the eyepieces, you will find a uniquely designed, molded rubber grip ring for non-slip handling during observing sessions.
The Celestron Ultima Edge eyepiece line can help you spend more time observing and less time focusing. When you buy more than one Ultima Edge eyepiece, you can switch between them without refocusing thanks to their parfocal design. With a set of Ultima Edge eyepieces in your kit, you’ll be able to enjoy a wide range of high and low power views and switch between them quickly and easily. That means you can get more out of every observing session. Please note that the Ultima Edge eyepieces are not parfocal eyepieces. Ultima Edge eyepieces are only parfocal within the line and do not maintain focus when swapped with parfocal eyepieces from other brands or series.
Ultima Edge 10mm specifications:
– Barrel Size Diameter: 1.25″ (31.75mm)
– Filter Threads: 1.25″ (M28.5X0.6)
– 10mm parfocal Ultra Flat Field eyepiece designed for 1.25” focusers
– Field Stop Diameter: 14.7mm (.58″)
– Fully multi-coated, 5-element lens design for excellent light transmission
– Wide 60° apparent field of view allows you to see more of the night sky
– Generous 16mm eye relief
– Weight: 2.82 oz (80 g)
– Dimensions: 58mm x 36.5mm x 36.5mm (2.28″ x 1.44″ x 1.44″)
Ultima Edge 15mm specifications:
– Barrel Size Diameter: 1.25″ (31.75mm)
– Filter Threads: 1.25″ (M28.5X0.6)
– 15mm parfocal Ultra Flat Field eyepiece designed for 1.25” focusers
– Fully multi-coated, 8-element lens design
– Field Stop Diameter: 19.6mm (.77″)
– Wide 65° apparent field
– Generous 16mm eye relief
– Weight: 5.18 oz (147 g)
– Dimensions: 70mm x 45mm x 45mm (2.75″ x 1.77″ x 1.77″)
Ultima Edge 18mm specifications:
– Barrel Size Diameter: 1.25″ (31.75mm)
– Filter Threads: 1.25″ (M28.5X0.6)
– 18mm parfocal Ultra Flat Field eyepiece designed for 1.25” focusers
– Field Stop Diameter: 23.4mm (.93″)
– Fully multi-coated, 8-element lens design
– Wide 65° apparent field of view
– Generous 20mm eye relief
– Weight: 7.4 oz (209.7 g)
– Dimensions: 81mm x 51mm x 51mm (3.19″ x 2″ x 2″)
Ultima Edge 24mm specifications:
– Barrel Size Diameter: 1.25″ (31.75mm)
– Filter Threads: 1.25″ (M28.5X0.6)
– 24mm Ultra Flat Field eyepiece designed for 1.25” focusers
– Field Stop Diameter: 30.2mm (1.19″)
– Fully multi-coated, 8-element lens design
– Wide 65° apparent field of view
– Generous 29mm eye relief
– Weight: 12.32 oz (349.3 g)
– Dimensions: 104mm x 60mm x 60mm (4.1″ x 2.36″ x 2.36″)
Ultima Edge 30mm specifications:
– Barrel Size Diameter: 2″ (50.8mm)
– Field Stop Diameter: 30.4mm (1.2″)
– Filter Threads: 2″ (M48.5X0.6-6H)
– 30mm parfocal Ultra Flat Field eyepiece designed for 2” focusers
– Fully multi-coated, 9-element lens design for excellent light transmission
– Wide 70° apparent field of view
– Generous 22mm eye relief
– Weight: 23.8 oz (674.7 g)
– Dimensions: 116mm x 60mm x 60mm (4.57″ x 2.36″ x 2.36″)
You can learn more about the full Celestron Ultima Edge Eyepiece line here.
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