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Altair 100mm 90 Degree Giant Observation Binoculars

Altair 100mm 90 Degree Giant Observation Binoculars

Mounting the binoculars: For terrestrial use and casual astronomical use we recommend a large video and or camera tripod. We recommend the Altair Sabre mount with vixen clamps and Heavy Duty L-Bracket for more serious or extended observation especially at higher powers.

Main features:
Very bright image and large field of view, well suited for observation of bright deep sky objects.
Enables use of 1.25" Light Pollution filters, such as the Altair Premium 1.25" CLS filters.
Extra large prisms with top quality multi-coatings on all optical surfaces.
High quality independently focusing 1.25" eyepiece holders - compression-fit with self centring brass inserts.
Tough, light magnesium alloy casing.
Includes a carry handle with sight.
The base has a standard 3/8" Photo tripod thread and 1/4" Photo tripod adapter so you can use your giant binoculars with a standard tripod. An additional pair of in-line threaded holes allow mounting on a Vixen-format dovetail bar.

Technical specifications:
Dimensions 550 X 270 X 200mm
Weight 7.1kg
Interpupillary distance 54-76mm
Dewshield Dia. 116mm
Objective Lens Diameter 100mm
Multi-layer coatings on all surfaces.
Focal Length 550mm
100mm F5.5 Proprietary CDGM dual element objective lens with improved colour correction.

Performance with included 18mm Ultraflat Eyepieces:
Minimum Focusing Distance 25m
Eyepiece Lens Structure(Elements/ Groups) 8/5 Ultra-flat design
Eyepiece Focal Length 18.45mm
Magnification with 18mm Eyepieces 30x
Real Field of View 2.2° Apparent Field of View 65-66°
Field of View at 1000m = 38.4m
Exit Pupil f3.3mm
Relative Brightness 10.9
Twilight Factor 54.8
Eye Relief 20mm
Eyepiece Weight 200g
Eyepieces Waterproof: Yes

Please order by December 18th at the latest for xmas - our offices close on Friday 20th December and we re-open on thursday January 2nd 2020. Our delivery charge for most of the UK is £2.95. All orders are shipped promptly, lower value items are sent Royal Mail 1st class and higher value or larger goods are shipped via reputable courier. All goods are shipped fully insured with FEDEX, UPS, DPD, DHL and Royal Mail, we do not use budget courier services, we can only ship to UK mainland addresses and are not able to ship to forwarding agents or PO boxes.

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We ship each business day, orders received before lunch are normally shipped that business day. We also direct ship from our UK suppliers, this means we have access to thousands of products that can ship fast to our customers.

Deliveries to UK mainland addresses are all shipped with fully insured premium services for £2.95, *some exceptions apply including many AB, FK, HS, IV, KA, KW, PA, PH, ZE postcodes. We will quote delivery charges to these areas where applicable prior to shipping (this does not normally affect lower value items shipped by Royal Mail).

You must inform us within one working day if the goods are lost or damaged in transit so that we can make a prompt claim against the delivery company and correct the problem. Please ensure all address details are accurate, we cannot be responsible for failed deliveries or losses arising from incorrect delivery addresses.

You agree that proof of delivery supplied by our delivery company is sufficient evidence to establish that goods have been received.

If your product is sent by Courier they will attempt delivery twice and a signature will be required. If they are unable to deliver because you are not available and after 5 days you have not contacted them to re-arrange. the goods will be returned to us and the return delivery costs may be charged to you

Altair 100mm 90 Degree Giant Observation Binoculars

MPN: BINO100-90





Price: 1,399.00

Including VAT and Warranty ✔


Imagine the light gathering power of two 4" refractors - one for each eye! Use your favourite 1.25" astro eyepieces for lunar and deepsky observation or even light pollution filters, which isn't possible with normal binoculars. The included 18mm Ultra-flat eyepieces give a 65° field of view, and the overall brightness of the images is quite surprising compared to using binoviewers with the same aperture.




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