Celestron Usb Cooling Fan for Dobsonian TelescopeThe Celestron USB Cooling Fan is the ideal cooling solution for your StarSense Exploerer 10 Dobsonian telescope. For those who cant wait to observe, this handy accessory cools the primary mirror to the ambient outdoor temperature faster. The result is crisper, better focused views sooner and more time for you to observe. This cooling fan mounts directly onto the rear cell of the StarSense Explorer 10 Dobsonian and works with any USB power source

with a payload capacity of up to 50kg

and maybe even H-beta and SII filters as well for narrow band astro photography

Every time you use white light

Objective Lens Diameter (mm): 42 mm

Shutter:Rolling shutter

The RGB colors combined flux will be approximately 1:1:1

Improved color balance for DSLRs and One-Shot Color Astro Cameras

Height adjustment range (includes mount and tripod): 762mm - 1270mm (30" - 50")

in the original reports at the time

Celestron’s premium StarBright XLT coatings provide maximum light transmission

Sensor Type: CCD - Sony ICX825

The basic development of this film was made in laboratories for nuclear- and particle physics