The brand for astronomy & observing nature
Wide range of innovative products
In-house development & manufacturing
🎄 Right of return up to 31.01.2023
Telescopes > Pro RC > Omegon Ritchey-Chretien Pro RC 254/2000 OTA
Product no.: 53811

Ritchey-Chretien Pro RC 254/2000 OTA

$ 2,890.00 incl. VAT, plus shipping costs
too expensive?
on stock
ready for shipping in 24 h + lead time

Delivery possible before Christmas (European destinations) - when you order by 18.12.!
Right of return up to January 31 2023!


Product description

More about the series Pro RC...

Next night take it to the next level - Omegon RC telescope for astrophotographers
Are you looking for an excellent telescope for astrophotography? Omegon Ritchey-Chretien telescopes will take you to the next quality level with your astronomy photos. Omegon RC telescopes provide a wide, coma-free field of view - perfect for round stellar images right out to the edge of the field of view. Discover exactly why an RC telescope is right for astronomy photography and why the professionals use them too.

The advantages in a nutshell

  • hyperbolic mirrors - extremely sharp image, wide field of view with no need for a corrector
  • quartz mirrors for stable focus, eliminating the need to refocus
  • high reflection - 92-94% dielectric reflective coating for bright, high-contrast observing and astronomy photos
  • rapid cool-down thanks to open design
  • electric fans for even faster cool-down (only for 10" model)

Hyperbolic mirrors for a better image
RC telescopes have hyperbolic main and secondary mirrors. They do not use spherical mirrors, such as in Schmidt-Cassegrain systems. This great idea is a big advantage to you - take better and sharper astronomy photos and enjoy a wider usable field of view! Ultra-sharp with APS-C chips. even without using a corrector. This technology was unaffordable even a few years ago. The new Omegon RC telescopes are now affordable for every amateur astronomer.

Photograph without needing a corrector
Use your DSLR or astronomy camera with your telescope without needing a corrector, for coma-free and pin-sharp stellar images, right out to the edge of the field of view. The 8" and 10" models even allow you to use 24x36mm full-frame chips without any corrector. All professional DSLR cameras will fit and countless astronomy cameras too. And, if you still want to photograph in the medium format, please do not hesitate to ask us for appropriate solutions.

Quartz main mirror
You have probably experienced this yourself if you are an experienced astrophotographer - focus drift during long exposures. This is extremely annoying! The advantage with this model is its two quartz mirrors - these undergo virtually no thermal expansion and so provide not just a fantastic image but, once focused, will remain focused for the entire night.

Steel OTA for stable focusing and high contrast
In addition to containing a good mirror, a steel OTA plays a decisive role in producing good astronomy photos. This Omegon RC OTA has a 50% reduced focus shift when compared to an aluminium OTA. Precisely located stray-light baffles also ensure high contrast.

Large unobstructed aperture: 3” focuser

The back end is especially important: the bearing-mounted 3” Linear Crayford Focuser gives you enough space to illuminate even large format image fields without vignetting.

A hybrid of Crayford and guide rail offers you the effortlessness of a Crayford focuser with the stability of a good rack and pinion focuser.

  • Always the perfect object alignment: focuser is completely rotatable
  • Reducer from 2” to 1.25” with integrated compression ring
  • Fine adjustment for the perfect focus: 1:10 reduction for minimal focus setting
  • Setting scale so you can quickly find your focus again
  • Highly stable: no movement so the camera remains perfectly aligned to the optical axis and the picture remains sharp

A better image than an SC telescope
To start with, an RC telescope is completely different to the classic SC or Maksutov design. It has no corrector plate and is hence an open system that adapts faster to the ambient temperature than an SC telescope. The absence of a front corrector plate also means that the telescope provides brighter images with no risk of internal reflections. Ritchey-Chretien systems are the most highly corrected two-mirror telescopes available. Their edge-to-edge image sharpness is impressive, so it is no wonder that practically all large research telescopes use this design of telescope in their professional observatories.

Now affordable
Making hyperbolic mirrors is both a science and an art. Up to only a few years ago, RC telescopes were among the most expensive telescopes in the world - only international institutions used them for research. But this technology is also now also affordable for experienced amateur astronomers.

Specifications

Optics


Type
Reflector
Type of build
Ritchey-Chretien
Aperture (mm)
254
Focal length (mm)
2000
Aperture ratio (f/)
7,9
Resolving capacity
0,45
Limit value (mag)
13,8
Light gathering capacity
1320
Max. useful magnification
508
Tube weight (kg)
15,7
Tube length (mm)
735
Tube material
Steel
tube diameter (mm)
294
Tube construction
Full tube

Reflector


Main mirror´s construction
hyperbolic
Secondary mirror material
Quartz
Secondary mirror obstruction
18
Primary mirror - Material
Quartz
Secondary mirror diameter (mm)
85
finish quality
1/12
reflectivity
99

Focuser


Type of build
Monorail
Connection ( to eyepiece)
2
Gear reduction
1:10 Fine movement

Mount


Mounting type
no mount
Type of build
OTA
GoTo control
no

Included accessories


Prism rail
Vixen-Style

General


Series
Pro RC

Area of application


Moon & Planets
yes
Nebulae & galaxies
yes
Nature Observation
no
Astrophotography
yes
Sun
not recommended (Only with appropriate Sun filter)

Recommended for


Beginners
no
Advanced
yes
Observatories
no

Recommended accessories

Telescope accessories > Eyepieces (3)
Eyepiece

Omegon Ultra Wide Angle eyepiece 9mm 1,25"

$ 69.00*
Telescope accessories > Prisms & Diagonal mirrors (3)
Amici prism

Omegon 1,25'' Amici Prism 90°

$ 169.00*
Telescope accessories > Transport & storage (4)

Omegon aluminium case, large

$ 89.00*
Telescope accessories > Other (5)

Omegon Radiant Finder with fastener

$ 49.90*
Observatories (1)

Omegon Tent observatory

$ 189.00*
Outdoor (2)
Headlamp

Omegon LED headlamp

$ 13.90*
Media (1)
Star chart

Omegon Star chart Planisphere

$ 14.90*
Maintenance & Cleaning (4)

Omegon 7-in-1 lens cleaning set

$ 19.90*

*All prices include VAT plus shipping costs.

Omegon Ritchey-Chretien Pro RC 254/2000 OTA
The two rails are located together. This means that you do not need to disassemble, but simply place onto your mount - no matter whether it is a 44mm or a 3" system.

Omegon Ritchey-Chretien Pro RC 254/2000 OTA
Two rails underneath and one on top - the telescope fits on mounts using a Vixen or Losmandy profile. The upper 3" universal Losmandy rail provides room for additional accessories - such as a tracking system
Omegon Ritchey-Chretien Pro RC 254/2000 OTA
Three OTA fans with power connector and 3" Crayford focuser - for successful astrophotography, even down to small-formats and without vignetting.

Omegon Ritchey-Chretien Pro RC 254/2000 OTA
NGC 2403 / Carlos Malagon
Omegon Ritchey-Chretien Pro RC 254/2000 OTA
M81 / Carlos Malagon
Omegon Ritchey-Chretien Pro RC 254/2000 OTA
Application example with Starlight focuser (not included in delivery)

Customer reviews

There are no customer reviews for this product yet.

Compose your own review

Do you have specific questions about your order or products? Please contact our customer service!

Customers who bought this product also bought...