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Altair Astro 150 DS 6" F5 Newtonian Reflector OTA

Price:  £239.00 (Inc. 20% VAT)Earn 239 Loyalty Points

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Generally In Stock, Please Confirm Before Ordering  

Generally In Stock, Please Confirm Before Ordering

Model:  AA150F5-DS-OTA
Brand:  Altair

Altair Astro 150 DS 6'' F5 Newtonian Reflector OTA
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With a well known reputation for the highest quality optics available in this price range, as well as a 2" CNC machined Dual Speed Focuser, the Altair Astro 150-DS F5 Newtonian is an entry level option for anyone interested in visual observing and who also wants to try astro photography. A 2" 35mm extension tube, 6x24mm finder scope, and a good quality 15mm Wide Field 70 Degree Eyepiece are included get you started. These accessories are much higher quality than those included with most entry level telescopes. The 15mm eyepiece produces a 70 degree wide field view at 50x magnification. Add a one of our optional 3x Barlow lenses, and it will deliver sharp views at 150x. (see related products).

Altair says: "One just has to compare this optical tube with others to see why this is such a great value telescope. Compare the machining fit and finish and the optical accessories. Check the secondary spider vanes for movement, rack the focuser in and out, and observe the thickness of the tube rings. It is beyond doubt the best value optical and mechanical unit we have been able to source to date. The Dual Speed focuser is CNC machined, therefore the focuser is more precisely aligned and orthogonal, and this alone is a significant improvement on the cheaper cast-metal focusers on budget telescopes."

Visual observing: The Altair F5 Newtonian parabolic optics are smooth and well figured with a well known reputation for high quality. With approximately 33% more light gathering than an equivalent 130mm Newtonian telescope (yet a small increase in optical tube size) the 150mm aperture is enough to reveal plenty of detail on the moon and planets with minimal scatter around bright objects. 6" of aperture is the point at which structure is visible in brighter deep sky objects such as the Orion Nebula, Dumbbell nebula and our closer galaxies. It is also posisble to see individual stars in globular clusters such as M13 in Hercules, something which is more difficult with smaller Newtonians. The CNC machined Dual Speed Focuser is fully tension adjustable, and offers better alignment than a cast metal focuser. This allows for smoother and more repeatable performance.

Deepsky Imaging: The relatively fast F5 focal ratio provides a less coma at the edge of the field than an F4 model and is easier to manage. The Altair 150-DS F5 telescope responds very well to most coma correctors as a result of the F5 focal ratio, and what's more, spacing is less critical than with an F4 Newtonian. Collimation is very easy with our optional Altair v2 laser collimator (see related product links below) and usually takes less than 2 minutes. The 150mm F5 format therefore makes a generally more tolerant telescope for beginners starting deepsky imaging, with a light weight motorised equatorial mount like the EQ2-3 or EQ5. (We've included some mount options - please see dropdown menu links below next to the price field, which will update as you make your mount choice).

Lunar and planetary webcam imaging: Webcam imaging is easy with our 3x ED Barlow, which increases the focal length from 750mm to an effective 2250mm, with rewarding results appearing instantly! Combine that with our webcam adapter and IR cut filter, and you have an entry level system able to deliver good results. (See related product links below).

Included with the Altair AA150-DS F6:
- 2" Dual Speed Crayford Focuser with 1.25" adapter
- 6x24mm finder scope
- Pair of tube rings and Vixen/Synta format dovetail bar
- 15mm Wide Field 70 Degree Eyepiece (60x magnification)
- 2" to 1.25" adapter with brass compression ring

Recommmended accessories:
A planetary camera!
Mount or no mount options in dropdown menu when ordering.
Altair 2x or 3x ED Barlow lens for webcam imaging or visual use to give you some extra magnification range for viewing different objects.
Altair v2 Laser Collimator - collimate your telescope in minutes.
Webcam adapter and 1.25" IR cut filter combo for webcam imaging.
Aperture / Focal length: 150mm / 750mm
Tube Length: 70cm
Weight: 5.9kg including finder and tube rings

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