Telescopes > Pro Astrograph > Omegon Telescope Pro Astrograph N 200/640 OTA

( 3 / 5 )

Product no.: 65145

Telescope Pro Astrograph N 200/640 OTA

Name: Omegon Telescope Pro Astrograph N 200/640 OTA
Brand: Omegon
Price: 2979 USD
Rating: 3 (1 reviews)

~~RRP: $ 3,690.00~~ Our price:

$ 2,979.00 incl. VAT, plus shipping costs

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Product description

More about the series Pro Astrograph...

Omegon 200mm f/3.2 Newtonian Astrograph

The compact and portable Newtonian Astrograph has been developed for the dedicated astrophotographer who wants a powerful telescope with very good sharpness over a large field of view. The Astrograph has been developed for modern sensors with high resolution and large diameters up to full format.

The extremely fast aperture ratio of f/3.2 allows you to take very deep shots of deep-sky objects in just one night, while maintaining very high magnification. Images of extended nebula objects or galaxy clusters are thus possible.

The highlights at a glance:

Parabolic primary mirror with a 200mm, f/3.2 aperture
3" corrector with 0.85 reduction built into the focuser
90mm diameter secondary mirror (minor axis) for full illumination up to full format
Large 3" rack and pinion focuser with reduction and M48 adapter
Tilting possibility at the focuser
Adjustable and stable holder for primary mirror and secondary mirror
Fully illuminated and corrected image field of 44mm diameter
Working distance of 55mm from the M48x0.75 thread

Specifications

Optics

Type

Reflector

Type of build

Newton

Aperture (mm)

200

Focal length (mm)

640

Aperture ratio (f/)

3,2

Resolving capacity

0,69

Limit value (mag)

13,3

Light gathering capacity

820

Max. useful magnification

400

Tube weight (kg)

tube diameter (mm)

280

Tube length (mm)

633

Tube material

Carbon

Tube construction

Full tube

Fully Corrected Field (mm)

Reflector

Main mirror´s construction

parabolic

secondary mirror design

Plan

Secondary mirror diameter (mm)

Adjustable

yes

Ventilation for central mirror

yes

Primary mirror - Material

PZ33

Focuser

Type of build

Gear rack

Connection ( to eyepiece)

1,25"

Connecting threaded socket (camera-side)

M48

Backfocus (mm)

55 (@M48)

Free aperture (mm)

Gear reduction

yes

Mount

Type of build

OTA

Mounting type

no mount

Included accessories

Corrector

integrated

Tube clamps

yes

Carrying handle

yes

Transport cases

yes

Prism rail

Losmandy-Style

finder base

Vixen/Skywatcher Level

General

Series

Pro Astrograph

Area of application

Astrophotography

yes (very good)

Moon & Planets

yes

Nature Observation

Nebulae & galaxies

yes

Sun

no (Only with appropriate Sun filter)

Recommended for

Beginners

Advanced

yes

Observatories

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Omegon Deluxe Red Dot Finder

$ 89.00*

Omegon LED red dot finder

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*All prices include VAT plus shipping costs.

Customer reviews

There are some issues...

Review by lkrustev on 26.08.2021 16:59:30

( 3 / 5 )

On first glance the build quality is great, but there are some issues:

- The mirror cell is an open one, so the mirror is not fixed in forward direction, so it shifts when the scope moves, and it is losing collimation all the time even during the imaging session.
- The secondary mirror is glued to the holder without too much precision, so when you align it, it is not centered, which is unfixable.

... I've tried all possible methods for collimation /many times/ and still the stars are far from perfect.

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