01356 660401
  • Contact Us
  • Lookup Orders
  • Login
Telescope Shop
Telescope Shop
Telescope ShopTelescope Shop
Search

Show Store Sections+

  • Telescopes
  • Eyepieces
  • Accessories
  • Mounts & Tripods
  • Astro-Imaging
  • Filters
  • Binoculars
  • Spotting Scopes
  • Monoculars
  • Offers

Show Information+

  • Customer Reviews
  • Telescope Buying Guide
  • Ordering & Delivery
  • About Us
  • Pricing
  • Buying a Telescope
  • How To Choose
  • Astrophotography
  • Payment Security
  • Support & Manuals
  • Telescopes for Education
  • Astronomy Video Guides
  • The ED Refractor Telescope

Account+

  • Login
  • Telescopes
    • Smart Telescopes
    • Telescopes for Beginners
    • SkyWatcher Telescopes
    • Celestron Telescopes
    • Explore Scientific Telescopes
    • Altair Astro Telescopes
    • StellaMira and StellaLyra Telescopes
    • ZWO Telescopes
    • Vixen Telescopes
    • Bresser Telescopes
    • SkyWatcher and Acuter Solar Telescopes
    • National Geographic Range
    • Lunt Solar Telescopes
    • Optical Tube Assemblies
  • Eyepieces
    • SkyWatcher Eyepieces
    • Celestron Eyepieces
    • Baader Eyepieces
    • Vixen Eyepieces
    • Explore Scientific Eyepieces
    • Eyepiece Sets
    • Zoom & Guiding Eyepieces
  • Accessories
    • SkyWatcher Accessories
    • Celestron Accessories
    • Baader Accessories
    • Barlow Lenses
    • Diagonals
    • Focusers
    • Power Supplies
    • Finderscopes
    • Telescope Cases & Covers
    • Adapters & Extension Tubes
    • Dew Prevention
    • Telescope Cleaning & Care
    • Binoviewers
    • Astronomy Books & Software
    • Weather Stations
    • Microscopes
    • Astronomy Gifts
    • Metal Detectors
  • Mounts & Tripods
    • Alt Azimuth Mounts
    • Equatorial Mounts
    • DSLR Camera Tracking Mounts
    • SkyWatcher Mounts
    • Celestron Mounts
    • Tripods & Piers
    • Mount Accessories
  • Astro-Imaging
    • Camera Adapters
    • CCD & CMOS Cameras
    • DSLR T Rings for Telescopes
    • Guide Scopes
    • Smartphone Adapters & Camera Mounts
    • Focal Reducers & Flatteners
    • T Thread & M48 Extensions
    • Filters for Canon DSLR Cameras
    • DSLR Astrophotography Tracking Mounts
  • Filters
    • Lunar & Planetary Filters
    • Light Pollution Filters
    • Astro Imaging Filters
    • Solar Filters & Glasses
  • Binoculars
    • Helios Binoculars
    • Celestron Binoculars
    • Barr and Stroud Binoculars
    • Giant Binoculars
    • Observation Binoculars
    • Binoculars with ED Glass
    • Bird Watching Binoculars
    • Solar Binoculars
    • Binocular Accessories
  • Spotting Scopes
    • Celestron Spotting Scopes
    • Helios Spotting Scopes
    • Barr & Stroud Spotting Scopes
  • Monoculars
    • Celestron Monoculars
    • Olivon Monoculars
  • Offers
    • Special Offer Telescopes
    • Special Offer Binoculars
    • Special Offer Accessories
    • Used Telescopes & Accessories
  • Login
  • Info
    • Customer Reviews
    • Telescope Buying Guide
    • Ordering & Delivery
    • About Us
    • Pricing
    • Buying a Telescope
    • How To Choose
    • Astrophotography
    • Payment Security
    • Support & Manuals
    • Telescopes for Education
    • Astronomy Video Guides
    • The ED Refractor Telescope
  • Information
    • Customer Reviews
    • Telescope Buying Guide
    • Ordering & Delivery
    • About Us
    • Pricing
    • Buying a Telescope
    • How To Choose
    • Astrophotography
    • Payment Security
    • Support & Manuals
    • Telescopes for Education
    • Astronomy Video Guides
    • The ED Refractor Telescope


Home  Binoculars  Giant Binoculars  Altair 100mm 45 Degree Giant Binoculars

Altair 100mm 45 Degree Giant Binoculars


  Ask a Question
Tweet

Altair 100mm 45 Degree Giant Binoculars
£1,299.00
 Inc VAT & Warranty
Availability - In stock

BINO100-45

  • Description
  • More Info
  • Delivery
  • Reviews

Product Description

For astronomy, high power nature viewing, or coastal observation, we cannot find a better price/performance ratio 100mm binocular. The difference in light grasp compared to 70 or 80mm binoculars is immediately visible, as is the higher resolution. In fact, these lenses outperform most spotting scopes and achromatic doublet telescopes of similar aperture, showing details which just aren't resolved with smaller apertures.

Complete with a pair of 18mm ultra flat eyepieces, you can use pairs of any standard 1.25" eyepieces on this model

Further details

Imagine the light gathering power of two 4" refractor telescopes - one for each eye! Use your favourite 1.25" standard astro eyepieces for daytime nature viewing, or lunar and deepsky observation. You can even use Altair 1.25" City Light Suppression CLS 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 with using binoviewers in a 100mm telescope with the same aperture, because each eye get's 100% of the light from 100mm aperture objective lens.

The 1.25" self-centering eyepiece holder focal position allows most eyepieces to come to focus including Altair Astro, Tele Vue Delos, Nagler, Panoptic, and the Docter 12.5 mm UWA. Of course you can also use standard 1.25" astronomy filters on the eyepieces to enhance viewing even more.

Every binocular has collimation checked before shipping ensuring you of the highest quality images possible.

Mounting the binoculars:
For terrestrial use and casual astronomical use we recommend a large sturdy 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 deepsky objects.
Independent helical focusers with self-centering compression eypiece holders.
Enables use of 1.25" Light Pollution filters, such as the Altair Premium 1.25" CLS filters.
Extra large 28mm prisms with top quality broadband multi-coatings on all optical surfaces.
High quality independently focusing 1.25" eyepiece holders - compression-fit with self centEring brass inserts.
Tough, light magnesium alloy casing.
Includes a carry handle with sight.
Extensible dew shields. Dew shield ID thread: M 116 x 1-6H, 6 mm depth.
Includes front dustcaps and rear dust plugs. Both eyepieces have dust caps.
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, or the new Single-Arm Binocular mount (code: BINOMOUNT1).

Included in delivery:
100mm binoculars with carry handle and tripod adapter
4 Dust Caps
Set 18mm UF 65 degrees = 30 x magnification
Double Carton Packing, rigid foam insert.

Technical specifications:
Dimensions 550 X 270 X 200mm
Weight 7.1kg
Interpupillary distance 54-75mm
Eyepiece Adapter: 31,7 mm / 1.25" Astro eyepiece compatible
Dewshield Dia. 116mm
Focal Length 550mm
Objective Lens Diameter 100mm
Objective angle of view: max. 2.8 Degree
100mm F5.5 Proprietary CDGM dual element objective lens with improved colour correction.
28mm Oversized K9 Prism Clear Aperture (field stop diameter: 25 mm).
Prism glass type: K9 equivalent to BAK4.
Broadband Hardcoat Multi-layer coatings on all surfaces.
Photo tripod thread: 1/4-20 and 3/8"

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 65-66° Apparent Field of View 2.2°
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

Delivery charge £5.95

Delivery Information

Our delivery charge is £5.95* fully insured. Orders received before 2PM normally ship that business day. We also ship direct from our suppliers all fully tracked and insured.

We use UPS, DPD, DHL, APC, DX Express, ParcelForce and Royal Mail, we do not use budget couriers, we only ship to UK mainland addresses and do not ship to forwarding agents or PO boxes.

Our Order Lookup system (see link at the top and bottom of each page) updates the order status - simply enter your order number and postcode..

*Some exceptions apply with AB, FK, HS, IV, KA, KW, PA, PH, ZE postcodes. We will quote delivery charges if applicable prior to shipping (this does not normally affect lower value items shipped by Royal Mail).

Reviews


Customer Reviews

10/10  Very Good  Great value for money , there heavy so you must get the best tripod & mount you can, i went for the big U mount.  (20/06/2023) - uk


Notify me when in stock!

CAPTCHA Image Reload Image

Ask a question about a product

  • CAPTCHA Image
    Reload Image

Related products:

Altair Astro Premium CLS-CCD UV/IR Filter 1.25 Inch
Altair Astro Premium CLS-CCD UV/IR Filter 1.25 Inch
£49.00

View

Altair Centre Arm Giant Binocular Mount
Altair Centre Arm Giant Binocular Mount
£165.00

View

Baader 1.25 Inch Neodymium Filter
Baader 1.25 Inch Neodymium Filter
£77.00

View

Contact Details

  • Contact Us
  • Business Address
  • Follow us on facebook
  • Lookup Orders
  • Tel 01356 660401

Company Information

  • About us
  • Customer Reviews
  • Terms & Conds
  • Privacy Policy
  • Site Map
  • VAT No. GB946500425
  • UK Company No. 6788494

Ordering & Delivery

  • Track Orders
  • Ordering & Delivery
  • Price Match
  • Telescope Buying Guide
  • Support & Manuals
  • Customer Feedback
  • Card Payments
  • PayPal

 UK Specialist Telescope Shop Since 2009

Copyright © 2025 Harrison Telescopes Limited. All rights reserved.VAT: GB946500425

follow us

Payment Types

© 2014-2017 Harrison Telescopes Limited

Tax No. VAT GB946500425 . Company Number 6788494