Sky-Watcher HAC 125DX Minigraph Astrograph OTA - S11250 Celestron X-Cel LX Eyepieces two of which is made

two of which is made of ED glass

But if you want to achieve the best accuracy possible

The reducer features a triplet air-spaced lens

Suited for astronomical observation at high magnification

Sky-Watcher HAC 125DX Minigraph Astrograph OTA - S11250 Celestron X-Cel LX Eyepieces two of which is madeThe latest Sky Watcher Honders Advanced Catadioptric, or HAC125DX Minigraph, is the smallest, fastest (f 2!) astrograph you can find. Here are just a few of the highlights of the HAC Minigraph: Honders Advanced Catadioptric optical design Radiant Aluminum Quartz (RAQ) mirror coatings Wide open 250mm focal length FAST f 2 focal ratio 5" aperture Lightweight 8. 4 pounds 16mm image circle Collimatable primary mirror cell Rear primary mirror helical