iOptron Photron 150 RC OTA

  • Sale
  • Regular price $399.00

More on the Way in 14 - 28 Business Days

Free Shipping
Add to Wishlist
Already have gear? Trade it in for cash or new equipment.

Accessories Added

OPT Telescope Expert

Want Help?

Ask Our Telescope Experts


iOptron Photron 150 RC OTA

The Photron 150 RC OTA by iOptron is a 150 mm (6-inch) Ritchey Chretien astrograph telescope OTA designed for today's astroimager for a complete imaging and visual system.

Introducing Photron, Ritchey Chretien (RC) telescope OTA by iOptron: Photron instruments are built to facilitate today's astroimager in capturing the data necessary to create spectacular edge to edge sharp astroimages. To achieve this goal, The RC telescopes incorporate low-thermal expansion quartz primary and secondary mirrors with 99-percent reflective dielectric coatings. The RC optical design delivers coma, spherical , and chromatic aberration-free results; perfect for color and monochrome imaging. A fixed position primary mirror eliminates the image shift that occurs when focusing some telescope designs. The steel tube interior is equipped with 10 knife edge baffles to diminish contrast-reducing stray light from bouncing and improving the instrument for both visual and imaging uses.

There are three extension rings provided for a flex-free solid extension as a means to take-up any unneeded back focus.

Mounting Plates: The 250 mm model includes both top and bottom Losmandy-style dovetail plates adding rigidity to the tube while providing attachment points for the mount and other accessories. The 200 mm model includes 1 Losmandy-style and 1 Vixen-style mounting plates. The 150 mm model includes 1 Vixen-style mounting plate.

The smooth dual-speed 2-inch Crawford focuser.


Note: The diagonal, eyepiece, and finderscope shown are for illustrative purposes only, but may be purchased separately. 


OPT Product Number: IO-6111

  • Photron 6-inch Ritchey Chretien Astrograph OTA
  • Dual Speed Crayford focuser
  • (3) Focus Extension Rings 
  • 1.25-inch Accessory Adapter
  • Vixen-style Mounting Plate


    Package Includes:
  • iOptron Photron 150 mm (6-inch) OTA, RC6
  • Two 25 mm extension rings
  • One 50 mm focus extension ring
  • 1.25-inch accessory adapter
  • One Vixen-style mounting plate 
  • Dual Speed Crayford focuser


Aperture150 mm (6")
Back Focus235mm
Camera/Eyepiece Connection2" Nosepiece
Dawes Limit0.76 arcseconds
Focal Length1370 mm
Focal Ratiof/9
Free ShippingYes
Limiting Magnitude14.7
Optical DesignRitchey Chretien
Secondary Obstruction67mm
Tube Diameter191mm
Tube Length485mmmm
Tube Weight12.3 lbs