Search results for: 'Televi'

Al Nagler's 4-element concept, continues the tradition of full-field sharpness with optimum aberration control. Like lon...

Al Nagler's 4-element concept, continues the tradition of full-field sharpness with optimum aberration control. Like lon...

Al Nagler's 4-element concept, continues the tradition of full-field sharpness with optimum aberration control. Like lon...

High contrast, comfortable eye relief and full field sharpness. Control of astigmatism, field curvature, lateral color...

High contrast, comfortable eye relief and full field sharpness. Control of astigmatism, field curvature, lateral color...

The 21mm focal length completes the logical set of 21mm/13mm/8mm and nicely juxtaposes the 17mm/10mm/6mm combination...

Take a "spacewalk" across a wide, sharp 82° apparent field...

Delos eyepieces: Love at first light...

The 17mm ETHOS is an ideal complement to the 31mm Nagler Type-5. They are parfocal (both have focus locations about 3/8"...

Delos eyepieces: Love at first light...

The 2" Eyepiece Barrel Extender (EBX-2120) increases backfocus distance and provides a mounting location for 2" (48mm) e...

Your telescope's focuser is used to compensate for your near- or far-sightedness; DIOPTRX™ compensates for your astigmat...

These adapters allows use of 1¼" eyepieces in any 2" focuser or diagonal.  ...

SCT Adapters thread onto the standard Celestron C8 back to allow use of standard 2" eyepiece accessories...

Take a "spacewalk" across a wide, sharp 82° apparent field...

Take a "spacewalk" across a wide, sharp 82° apparent field...

Take a "spacewalk" across a wide, sharp 82° apparent field...