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OMEGON Dobson Reflector Telescope Pro Ritchey-Chretien RC Truss Tube 406/3250 GM 3000 812x teleskoobid
28913.00 €
Tootekood: 55124
Bränd: OMEGON
Saadavus: Peale tellimuse vormistamist, anname teada täpse tarneaja.
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Dobson Reflector Telescope Pro Ritchey-Chretien RC Truss Tube 406/3250 GM 3000 812x
Product description:
Fully equipped with accessories worth over 1200 euros - two 12kg counterweights, special power supply for a 10Micron mount, MAXI clamping plate and 8" clamp.
Take impressive astronomy photos with this huge RC telescope. The 16" carbon-fibre truss-tube, as well as the mirror cell, are really tough high-quality workmanship, just as you would expect with a high-end astrophotography instrument - letting you take dazzling photos of deep sky objects that only a large aperture instrument such as a 400mm telescope can.
The 10Micron GM 3000 HPS mount can carry up to 100kg in weight and is therefore the optimal base in the super-heavyweight class. Successful astronomy photos are virtually guaranteed to succeed with such a high-precision set-up.
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.
Now you can use this professional technology for your own observatory too! Omegon RC telescopes are so well-balanced that they can be accommodated in even smaller observatories.
The advantages in a nutshell
hyperbolic mirrors - extremely sharp image, large field of view without need of a corrector
quartz mirrors - for stable focus without the need to refocus, as the image remains sharp
suitable for large-format CCD cameras - approx. 60mm of illumination
stiffened carbon-fibre truss tube system
high reflection - 92-94% dielectric reflective coating for bright, high-contrast observing and astronomy photos
rapid cool-down thanks to open design
high-performance electric fans - minimize tube currents and accelerate cool-down of the optics
Hyperbolic mirror for a better image
RC telescopes have hyperbolic main and secondary mirrors. They do not use spherical mirrors, such as in Schmidt-Cassegrain systems. As a result, the RC design is clearly superior - the optics provide a significantly wider image field with considerably less imaging aberrations.
A very high image quality over a wide field of view - that is the purpose of these telescopes. That is why they are always the first choice for astrophotography. This is the reason why RC systems are the right choice for large CCD cameras. This means that your photos are sharp right out to the edge of the field of view, even without using a corrector, to create beautiful photos of the night sky.
More usable in an extended spectral range
RC telescopes have no lenses in the beam path. This is a big advantage! As a result, problems with refraction effects - such as chromatic aberration or dispersion - do not arise. The usable range of the spectrum beyond the visible light is greater, allowing you to also use your camera to penetrate the UV and infrared ranges - which are often very interesting.
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.
Get started observing faster - main mirror fan
Just a quiet, unobtrusive hum, but what an effect! - the built-in 12V fan means 50% faster cool-down of your main mirror. This allows your telescope to reach optimum image quality more rapidly, so you do not have to wait for so long.
Carbon-fibre truss-tube design OTA
Most professional telescopes use a truss-tube design and this telescope enjoys exactly the same advantages. The carbon-fibre tubes are stiff, light and especially thermally stable - another reason why there is no focus drift. Natural ventilation is better with a truss-tube design and prevents the system from developing its own microclimate.
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
Focuser can be independently aligned
Six collimating screws allow you to precisely align the 3" focuser with respect to the mirror optics, thus ensuring the following - no slipping, the eyepiece or your camera sits on the optical axis. The focuser even has a genuine 3" diameter - this should not to be taken for granted, as many similar focusers taper off toward the eyepiece end.
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.
Included in delivery
Omegon RC truss-tube OTA
3" mounting rail
fan with battery box
3" focuser
3x extension tubes
HPS stands for High Precision and Speed - this mount can achieve a satellite tracking and positioning speed of 12 degrees/sec, with an average positioning accuracy of <20" and a tracking accuracy of approx 1"/15min (peak to peak).
The mount is also equipped with high-precision absolute encoders on both axes - this opens up entirely new possibilities. The mount will never lose its orientation, even if you manually move the telescope - no new alignment is necessary, even after a power failure. In portable operation, the mount is faster and easier to set up and north-align than any conventional equatorial mount.
Specifications:
Optics
Type Reflector
Type of build Ritchey-Chretien
Aperture (mm) 406
Focal length (mm) 3250
Aperture ratio (f/) 8
Resolving capacity 0,28
Limit value (mag) 15,5
Light gathering capacity 3364
Max. useful magnification 812
Tube weight (kg) 38
Tube construction Truss Tube
Focuser
Type of build Crayford
Connection ( to eyepiece) 3
Mount
Mounting type Equatorial
Type of build GM 3000 HPS
GoTo control yes
Tracking yes
Weight (kg) 60
Tripod
Type without
Included accessories
Counterweights (kg) 2x 20
General
Total weight (kg) 98
Series Pro RC
Special recommendation yes
Area of application
Moon & Planets yes
Nebulae & galaxies yes
Nature Observation not recommended
Astrophotography yes
Sun not recommended (Only with appropriate Sun filter)
recommended for
Beginners no
Advanced yes
Observatories yes
Dobson Reflector Telescope Pro Ritchey-Chretien RC Truss Tube 406/3250 GM 3000 812x
Product description:
Fully equipped with accessories worth over 1200 euros - two 12kg counterweights, special power supply for a 10Micron mount, MAXI clamping plate and 8" clamp.
Take impressive astronomy photos with this huge RC telescope. The 16" carbon-fibre truss-tube, as well as the mirror cell, are really tough high-quality workmanship, just as you would expect with a high-end astrophotography instrument - letting you take dazzling photos of deep sky objects that only a large aperture instrument such as a 400mm telescope can.
The 10Micron GM 3000 HPS mount can carry up to 100kg in weight and is therefore the optimal base in the super-heavyweight class. Successful astronomy photos are virtually guaranteed to succeed with such a high-precision set-up.
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.
Now you can use this professional technology for your own observatory too! Omegon RC telescopes are so well-balanced that they can be accommodated in even smaller observatories.
The advantages in a nutshell
hyperbolic mirrors - extremely sharp image, large field of view without need of a corrector
quartz mirrors - for stable focus without the need to refocus, as the image remains sharp
suitable for large-format CCD cameras - approx. 60mm of illumination
stiffened carbon-fibre truss tube system
high reflection - 92-94% dielectric reflective coating for bright, high-contrast observing and astronomy photos
rapid cool-down thanks to open design
high-performance electric fans - minimize tube currents and accelerate cool-down of the optics
Hyperbolic mirror for a better image
RC telescopes have hyperbolic main and secondary mirrors. They do not use spherical mirrors, such as in Schmidt-Cassegrain systems. As a result, the RC design is clearly superior - the optics provide a significantly wider image field with considerably less imaging aberrations.
A very high image quality over a wide field of view - that is the purpose of these telescopes. That is why they are always the first choice for astrophotography. This is the reason why RC systems are the right choice for large CCD cameras. This means that your photos are sharp right out to the edge of the field of view, even without using a corrector, to create beautiful photos of the night sky.
More usable in an extended spectral range
RC telescopes have no lenses in the beam path. This is a big advantage! As a result, problems with refraction effects - such as chromatic aberration or dispersion - do not arise. The usable range of the spectrum beyond the visible light is greater, allowing you to also use your camera to penetrate the UV and infrared ranges - which are often very interesting.
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.
Get started observing faster - main mirror fan
Just a quiet, unobtrusive hum, but what an effect! - the built-in 12V fan means 50% faster cool-down of your main mirror. This allows your telescope to reach optimum image quality more rapidly, so you do not have to wait for so long.
Carbon-fibre truss-tube design OTA
Most professional telescopes use a truss-tube design and this telescope enjoys exactly the same advantages. The carbon-fibre tubes are stiff, light and especially thermally stable - another reason why there is no focus drift. Natural ventilation is better with a truss-tube design and prevents the system from developing its own microclimate.
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
Focuser can be independently aligned
Six collimating screws allow you to precisely align the 3" focuser with respect to the mirror optics, thus ensuring the following - no slipping, the eyepiece or your camera sits on the optical axis. The focuser even has a genuine 3" diameter - this should not to be taken for granted, as many similar focusers taper off toward the eyepiece end.
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.
Included in delivery
Omegon RC truss-tube OTA
3" mounting rail
fan with battery box
3" focuser
3x extension tubes
HPS stands for High Precision and Speed - this mount can achieve a satellite tracking and positioning speed of 12 degrees/sec, with an average positioning accuracy of <20" and a tracking accuracy of approx 1"/15min (peak to peak).
The mount is also equipped with high-precision absolute encoders on both axes - this opens up entirely new possibilities. The mount will never lose its orientation, even if you manually move the telescope - no new alignment is necessary, even after a power failure. In portable operation, the mount is faster and easier to set up and north-align than any conventional equatorial mount.
Specifications:
Optics
Type Reflector
Type of build Ritchey-Chretien
Aperture (mm) 406
Focal length (mm) 3250
Aperture ratio (f/) 8
Resolving capacity 0,28
Limit value (mag) 15,5
Light gathering capacity 3364
Max. useful magnification 812
Tube weight (kg) 38
Tube construction Truss Tube
Focuser
Type of build Crayford
Connection ( to eyepiece) 3
Mount
Mounting type Equatorial
Type of build GM 3000 HPS
GoTo control yes
Tracking yes
Weight (kg) 60
Tripod
Type without
Included accessories
Counterweights (kg) 2x 20
General
Total weight (kg) 98
Series Pro RC
Special recommendation yes
Area of application
Moon & Planets yes
Nebulae & galaxies yes
Nature Observation not recommended
Astrophotography yes
Sun not recommended (Only with appropriate Sun filter)
recommended for
Beginners no
Advanced yes
Observatories yes
