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Omegon Telescope Pro Astrógrafo 304/1200 OTA

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.

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€721.90
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53820
Description

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 data

12" astrograph OTA with 88mm secondary mirror

secondary mirror marking for collimation

tube-ring clamps and 22cm Vixen-style prism rail

2" 35mm extender

OTA length 1170mm, OTA outer diameter 355mm

12V fan

Specifications:

Optics

 
Type  Reflector
Type of build  Newton 
Aperture (mm)  304
Focal length (mm)  1200
Aperture ratio (f/)  4
Resolving capacity  0,38
Limit value (mag)  14,2
Light gathering capacity  1870
Max. useful magnification  606
Tube weight (kg)  20,8
Tube material  Steel
Tube length (mm)  1170
Coating Aluminium and silicon dioxide
tube diameter (mm) 355
Tube construction Full tube

Reflector

 
Main mirror´s construction  parabolic
Secondary mirror obstruction  29
Secondary mirror diameter (mm) 88
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 Losmandy-Style

General

Series Pro Astrograph 
Total weight (kg) 20,8

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  yes

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Product Details
53820
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