iOptron Photron 250 RC OTA with Accessories

Brand: iOptron

SKU : IO-6113

- Read
Looking for a iOptron Photron 250 RC OTA with Accessories? Shop this product at Agena Astro by clicking the SHOP NOW button!
Add to Wishlist

Request stock alerts and we'll let you know when the item is back in stock

Got questions? Click for live chat

  • Ritchey-Chretien design telescope that is perfect for color or monochrome imaging
  • Coma, chromatic aberration, and spherical aberration-free optics!
  • Large 250 mm aperture with 2000 mm focal length

Product Details

  • The Photron 250 RC OTA by iOptron is a 250 mm (10-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 and eyepiece are shown are for illustrative purposes only, but may be purchased separately. 


    OPT Product Number: IO-6113

  • specifications

    Aperture250 mm (9.8")
    Back Focus288mm
    Camera/Eyepiece Connection2" Nosepiece
    Dawes Limit0.46 arcseconds
    Focal Length2000 mm
    Focal Ratiof/7.9
    Free ShippingYes
    Glass TypeQuartz
    Highest Magnification508x
    Limiting Magnitude15.8
    Optical DesignRitchey Chretien
    Secondary Obstruction110mm
    Tube Diameter294mm
    Tube Length650mm
    Weight35.1 lbs
  • included items

    • iOptron Photron 250 mm (10-inch) OTA, RC10
    • Two 25 mm extension rings
    • One 50 mm focus extension ring
    • 1.25-inch accessory adapter
    • Two Losmandy-style mounting plates
    • Dual Speed Crayford focuser

Product Reviews