Welcome to R-Sky Astro Instruments 

R-Sky - is a small manufacturer of equipment for astronomy enthusiasts. Our key product is a heating system for telescope and camera lenses and eyepieces that prevents lens sweating and dew-fall during photo sessions and observations.

We develop dew heaters for 1,25'', 2'' eyepieces and massive modern TeleVue and Explorer Scientific eyepieces. Read more...


We develop dew heaters for refractors, Schmidt–Cassegrain and Maksutov-Cassegrain telescopes. Read more...

We also have secondary mirror Newtonian heaters. Read more...

We also have dew heaters for Optical Finder, Telrad and Green Laser Pointer. Read more...

 And, of course, we offer controllers for connecting and managing these heaters. Read more...

We produce heaters for virtually all types of telescopes and eyepieces.

The Observing Hood (“Monk” hood style) is a necessary accessory for any amateur astronomer!
It allows you to keep both eyes open. The Observing Hood reliably and comfortably blocks out parasitic light, thereby increasing contrast and reducing glare in the eyepiece. Read more...

The Dust Cover is designed to be used with telescopes of various optical systems. The Dust Cover is made out of waterproof fabric that ensures protection of the innards of your telescope from dust and moisture during storage and transportation. Read more...

A complete list of R-Sky products is available in our interactive price list.