Omegon Ritchey-Chretien Pro RC 406/3250 Truss OTA
Omegon RC carbon-fibre truss-tube telescope - professional astrophotography for your observatory
If astrophotography is your passion and you are looking for exactly the right telescope for your observatory, then a Richey-Chretien telescopes is ideal. Their large mirror optics produce a nearly perfect image. The two hyperbolic mirrors provide a large, well-illuminated and coma-free image from the compact design. The result - perfect stellar images right out to the edge of the field of view. That is also the reason why countless professional observatories and institutes swear by this system.
Product description:
Omegon f/4 astrograph - for unforgettable astronomy photos
Which other type of telescope can be used to create a beautiful image with so little effort? With Omegon astrographs this is easier than with 'ordinary' telescopes. Why? The answer is obvious - because an aperture ratio of f/4 means a big light output and consequently shorter exposure times. Immerse yourself in the world of deep sky photography. Admire faint galaxies or details in hydrogen nebulae. The Omegon astrograph sets a new benchmark for your astronomy photos.
The advantages in a nutshell
f/4 astrograph - a telescope with ultra-fast aperture ratio for short exposures
suitable to go on medium mountings due to its short overall length
wide field of view for extended objects - approx. 24mm is illuminated
94% reflection parabolic main mirror for bright images
large secondary mirror - good illumination for DSLR cameras
robust 2" Crayford focuser with 1:10 reduction and 1.25" reducer
faster cool-down for getting started observing quicker - main mirror fan
94% reflection f/4 main mirror
Astrographs are suitable for visual observing, but only show their full potential when used for astrophotography. Their f/4 aperture means they are among the 'fastest' Newtonian telescopes around, allowing you to take shorter exposure images.
The secondary mirror and the parabolic BK7 main mirror are 94% reflective, providing brighter and higher contrast images. One can see a visible improvement when compared to a 'normal' mirror which is around 88% reflective.
No shadows, only light - large secondary mirror
Attach your DSLR camera or a modern CCD camera to the telescope and enjoy impressive illumination over a wide field of view. No shadowing is noticeable thanks to the particularly large secondary mirror (see also below). Observing with 2" wide-field eyepieces is now perfect.
Less mistakes - more fun with the photography
The particularly short OTA length and focal length means the telescope is compact - the astrograph is about 20% shorter as compared to an f/5 system. This means you can also use this OTA's excellent optics on a medium mount, saving yourself the expense and clumsiness of a heavier mount.
Another advantage is that the astrograph is perfect for extended deep sky objects thanks to its shorter focal length. This system is also more tolerant of small tracking errors than a telescope with a longer focal length. You will achieve some astounding astrophotography with even just a little effort.
2" Crayford focuser with 1:10 fine focusing
The Omegon V-Power focuser provides precision focusing for all astronomical objects. The 1:10 reduction, sturdy ball-bearings and guide rail make the focuser stable and easy-to-use. Its optimized design means the focuser can safely carry cameras weighing up to 5 kilograms without any slipping.
extremely precise operation - the ball bearings and stainless steel guide rail mean the focuser tube runs smoothly and precisely
can carry heavy cameras and eyepieces - no slipping with up to 5kg loads
1:10 reduction means precise focusing, includes a focus scale
anti-reflection baffles for high contrast
2" to 1.25" reducer
Included in delivery and other important data
6" astrograph OTA with 63mm secondary mirror
secondary mirror marking for optical alignment
tube clamps and 22cm Vixen-style prism rail
2", 35mm extension tube
OTA length 580mm, OTA outer diameter 176mm
English GB
Español