Askar 140APO - 140 mm f/7 Triplet APO Refractor - 140APO type-reducers-flatteners-correctors are placed just in front

are placed just in front of and behind the focuser

Sky Mentor 5X Five Element Barlow Specifications

Thanks to the experience of manufacturing 7nm narrow band filters

for the same price

This is the same style telescope John Dobson used when he created his inexpensive and easy-to-build Dobsonian

Askar 140APO - 140 mm f/7 Triplet APO Refractor - 140APO type-reducers-flatteners-correctors are placed just in frontWhether you're an amateur astronomer or a professional astrophotographer, the Askar 140APO will provide you with a high quality user experience and help you go deeper into the mysteries of the universe. The Askar 140APO is an OTA with a 140mm aperture, 980mm focal length, and f 7 native focal ratio. The aperture of 140mm gives it an inherent advantage in terms of light gathering power, resolution, brightness, and contrast, allowing the photographer to