Brand: iOptron

iOptron OTA 6" F/9 Ritchey-Chrétien (6111)

6111

Brand: iOptron

iOptron OTA 6" F/9 Ritchey-Chrétien (6111)

6111

  • Coma free, chromatic aberration-free, spherical aberration-free optics
  • 150mm (6") optical aperture
  • 1370mm focal length
  • f/9 focal ratio
  • Fixed primary
  • Low thermal expansion quartz mirrors
  • Multiple Knife-Edge Baffle System
  • 2" Dual-speed Crayford focuser
  • Finder scope base and dovetail bar
  • Optional finder scope, diagonal and 1.25" eyepiece
  • Optional iOptron Electronic Focuser (#8451)
$546.00 USD

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$546.00 USD

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Product Description

The iOptron® Photron™ Ritchey-Chrétien design telescopes feature low thermal expansion quartz primary and secondary mirrors with ninety-nine percent reflective dielectric coatings.

The RC optical design delivers coma, spherical and chromatic aberration free results, perfect for color or monochrome imaging. A fixed position primary mirror eliminates image shift that occurs from focusing with other telescope designs. The iOptron RC6 comes with a 2" dual-speed Crayford focuser. Three focuser extension rings are provided for a “flex-free” solid extension as a means to take up any unneeded back focus. Its steel tube is equipped with knife edge baffles to diminish contrast reducing stray light, improving the instrument in both visual and imaging uses. A RC6 model comes with a Vixen style dovetail plates.

What can I see with a iOptron OTA 6" F/9 Ritchey-Chrétien (6111)?

Here are some simulated views of common objects. Results with your telescope will vary with viewing conditions, obrits, equipment and more.

Jupiter with

25mm Eyepiece - 55x Magnification

(Sold Separately)

Jupiter with

10mm Eyepiece - 137x Magnification

Sold Separately

Jupiter with

5mm Eyepiece - 274x Magnification

Sold Separately

Moon with 25mm Eyepiece

55x Magnification

(Sold Separately)

Moon with 10mm Eyepiece

137x Magnification

Sold Separately

Moon with 5mm Eyepiece

274x Magnification

Sold Separately

Andromeda with 36mm Eyepiece

38x Magnification

Sold Separately

Andromeda with 25mm Eyepiece

55x Magnification

(Sold Separately)

Andromeda with 10mm Eyepiece

137x Magnification

Sold Separately

What's in the Box

  • #6111 6" RC OTA only
  • OTA w/2" dual-speed Crayford focuser
  • 2X25mm, 1X 50mm focus extension
  • 1.25" accessory adapter
  • Vixen dovetail bar

Specifications

Optical Design Ritchey-Chretien
Clear Aperture 150mm
Focal Length 1370mm
Focal Ratio f/9
Resolving Power 0.76 arc seconds
Limiting Magnitude 13.6
Highest Useful Magnification 180X
Secondary Mirror Size 67mm in diameter
Focuser 10:1 Crayford dual-speed
Focuser size 2"
Dovetail Bar Vixen-style
Finderscope Base Yes
Finder scope Optional
Tube material Steel
Tube Length 19.1"
Tube Weight 12 lbs
Other Accessories 2" to 1.25" compression ring adapter;
1" long extension tube X2
2" long extension tube X1
Gross Weight 18 lbs
Warranty One year limited

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