Orion GiantView 25x100 Binoculars Review^Mini

Whilst they do offer instruments suitable for many uses, Orion are probably best know for producing good quality, great value for money telescopes and binoculars for astronomy.

Indeed they have a very comprehensive range of astro binoculars within their stable, but of all of them, the Orion Giant View 25x100 binocular is their biggest and most powerful.

Considering their price (about $360 in the US / £320 in the UK - check links on the right for other countries) and their intended uses of astronomy and long range viewing down her on earth, these mid to high range look to have a lot going for them and below are some of my thoughts:

What I Like

100mm Objectives
We'll start with the most obvious feature: The 100mm lenses places these firmly within the category of giant binoculars. If you think of them like a windows, where bigger ones let in more light, then it is easy to imagine how these super large lenses are able to capture more light. Which at night (when used for astronomy) is understandably important.

But even during the day, these very high power binoculars mean that you need large lenses in order to maintain a good size exit pupil:

4mm Exit Pupil
Considering the very powerful 25x magnification, being able to still have a more than acceptable 4mm exit pupil is great. It is far better than 20x70 and 25x70 binoculars and matches that of the popular 20x80 configuration, yet you get the an added 5x power to get you even more detailed views.

Fully Multi-Coated
large lenses and all the light gathering potential in the world is no good if that light does not make it through the optical pathway and onto your eyes. So it is great to see that Orion optics have added multi-layer coatings of an anti-reflection material to every lens surface throughout the 25x100 Giant View .

This will certainly add to image brightness and deliver an obvious improvement when compared to lesser quality instruments that are often only single layer coated or fully coated - but only on the external lens surfaces.

Other Highlights

• Aluminium strengthening rods
• Sliding Tripod Mount with standard 1/4"-20 threading
• Included hard carry case
• 18mm of Eye-relief and a 132ft@1000yd field of View are both good considering the 25x power

What I Don't Like

Eyecups
Whilst I know almost every binocular in this class will have exactly the same, I just wish they would use twist-up eye-cups and not the simple rubber folding type.

1 Year Warranty
Whilst it is good that they have one, 1 year is a little mean. Most brands offer 5 to 10 years these days, with many offering lifetime guarantees.

Taking all into account this and their main specs (see below) the Orion Giant View 25x100 Binoculars look to be an ideal choice for those after a good value, mid to high level High Powered, Long Distance Viewing binocular, for both stargazing and terrestrial use.

Compare Prices & Where to Buy the Orion Binoculars

Price & Where to Buy

Price & Where to Buy

Main Specifications & Features:

• Size: Giant Binoculars
• [explain prism types]Prism Type: Porro Prism Binoculars
• Magnification: 25x
• [explain objective lens]Objective Lens Diameter: 100mm
• [explain waterproofing]Waterproof: No
• [about fogproofing]Fogproof: No


• [explain exit pupil]Exit Pupil: 4
• [explain twilight factor]Twilight Factor: 50
• [explain eye relief]Eye Relief: 18mm
• Close Focus Distance: 98.4ft


• Weight: 161.55ozs (4580g)
• Length: 17.1in (43.4cm)


• [explain real field of view]Real field of view: 2.5°
• [explain apparent field of view]Apparent field of view: 62.5°
• [explain field of view]Field of View: 44m at 1,000 meters
• [explain field of view]Field of View: 132ft at 1,000 yards


• Image Stabilization: No
• [about Lens Coatings]Lens Coatings: Fully Multi-Coated
• [about ED Glass]Extra Low Dispersion Glass: No
• [about tripod adapters]Tripod Adaptable: Yes
• Auto Focus: Yes

BinoWizard BinoWars:

Compare the main specifictions & features above versus all other:

• 25x100 Binoculars
• 100mm Binoculars