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OMEGON Reflector Telescope Pro Astrograph 254/1016 OTA 508x teleskoobid
Tootekood: 54741
Bränd: OMEGON
Saadavus: Peale tellimuse vormistamist, anname teada täpse tarneaja.
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Toote kirjeldus inglise keeles:
Reflector Telescope Pro Astrograph 254/1016 OTA 508x
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.
3" focuser with linear ball bearings - illuminate huge fields of view
Instead of using classic ball-bearings this eyepiece has a 'Linear-Power-System'. The advantage is that a stainless steel rail makes the focuser much more stable. Your equipment will not tilt or slip.
The 72mm inner diameter of the focuser tube provides shadow-free illumination for large and fast telescopes. It is even suitable for full-frame sensors. It is the right focuser for your large field camera.
In comparison, a 2" focuser would show unsightly shadowing on the edge of the image - a 3" focuser means more freedom for large and extended images, and that's just how it should be!
Of course, this focuser has even more features
dual rate 1:10 reduction assists you in accurately focusing astronomical objects. - a 2" to 1.25" adapter is included for all eyepieces and adapters
laser-engraved scale to help you find a previously used focus position
only 82mm long and with 50mm of adjustment
74x0.5mm thread for adapter or filter wheel
friction adjustment
length 82mm
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.
Included in delivery and other important information
10" astrograph OTA with 88mm secondary mirror
secondary mirror marking for collimation
tube-ring clamps and 22cm Vixen-style prism rail
35mm 2" extender
OTA length 980mm, OTA outer diameter 303mm
12V fan
Specifications:
Optics
Type Reflector
Type of build Newton
Aperture (mm) 254
Focal length (mm) 1016
Aperture ratio (f/) 4
Resolving capacity 0,45
Limit value (mag) 13,8
Light gathering capacity 1320
Max. useful magnification 508
Tube weight (kg) 14,8
Tube material Steel
Tube length (mm) 980
Coating Aluminium and silicon dioxide
tube diameter (mm) 303
Tube construction Full tube
Reflector
Main mirror´s construction parabolic
Secondary mirror obstruction 35
Secondary mirror diameter (mm) 70
Ventilation for central mirror yes
Primary mirror - Material BK7
reflectivity 94
Focuser
Type of build Crayford
Connection ( to eyepiece) 3
Gear reduction 1:10 Fine movement
Mount
Type of build OTA
Mounting type no mount
GoTo control no
Included accessories
Miscellaneous Main mirror ventilation
Extension tubes yes
Tube clamps yes
Eyepiece adaptor 1,25" & 2"
Prism rail Vixen-Style
General
Series Pro Astrograph
Total weight (kg) 14,8
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
Reflector Telescope Pro Astrograph 254/1016 OTA 508x
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.
3" focuser with linear ball bearings - illuminate huge fields of view
Instead of using classic ball-bearings this eyepiece has a 'Linear-Power-System'. The advantage is that a stainless steel rail makes the focuser much more stable. Your equipment will not tilt or slip.
The 72mm inner diameter of the focuser tube provides shadow-free illumination for large and fast telescopes. It is even suitable for full-frame sensors. It is the right focuser for your large field camera.
In comparison, a 2" focuser would show unsightly shadowing on the edge of the image - a 3" focuser means more freedom for large and extended images, and that's just how it should be!
Of course, this focuser has even more features
dual rate 1:10 reduction assists you in accurately focusing astronomical objects. - a 2" to 1.25" adapter is included for all eyepieces and adapters
laser-engraved scale to help you find a previously used focus position
only 82mm long and with 50mm of adjustment
74x0.5mm thread for adapter or filter wheel
friction adjustment
length 82mm
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.
Included in delivery and other important information
10" astrograph OTA with 88mm secondary mirror
secondary mirror marking for collimation
tube-ring clamps and 22cm Vixen-style prism rail
35mm 2" extender
OTA length 980mm, OTA outer diameter 303mm
12V fan
Specifications:
Optics
Type Reflector
Type of build Newton
Aperture (mm) 254
Focal length (mm) 1016
Aperture ratio (f/) 4
Resolving capacity 0,45
Limit value (mag) 13,8
Light gathering capacity 1320
Max. useful magnification 508
Tube weight (kg) 14,8
Tube material Steel
Tube length (mm) 980
Coating Aluminium and silicon dioxide
tube diameter (mm) 303
Tube construction Full tube
Reflector
Main mirror´s construction parabolic
Secondary mirror obstruction 35
Secondary mirror diameter (mm) 70
Ventilation for central mirror yes
Primary mirror - Material BK7
reflectivity 94
Focuser
Type of build Crayford
Connection ( to eyepiece) 3
Gear reduction 1:10 Fine movement
Mount
Type of build OTA
Mounting type no mount
GoTo control no
Included accessories
Miscellaneous Main mirror ventilation
Extension tubes yes
Tube clamps yes
Eyepiece adaptor 1,25" & 2"
Prism rail Vixen-Style
General
Series Pro Astrograph
Total weight (kg) 14,8
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
