Garrett® Gemini 20x80 LW Binocular

I received my binoculars promptly and perfectly collimated. Thank you for a great product... (click for more).

Looking for the giant binocular that offers more bang-for-the-buck than any other? Most big binocular users agree that the 20x80 size does just that. Garrett Optical’s Gemini® series represent an outstanding value in large-aperture binoculars. Designed with the amateur astronomer in mind, the Gemini series are an affordable way to build memories under the stars with family and friends. They're also an excellent choice for long-range hunting, birding, marine and surveillance applications.

The lightweight Gemini LW versions provide the most bang-for-the-buck of any binoculars around. Every Gemini big binocular features prisms polished from high-index BaK4 glass and our best-quality Broadband Multi-Coatings on every air-to-glass surface (including the prisms). It's features like these that make Gemini giant binoculars such a great choice for amateur astronomers, hunters, and birders. Binoculars excel at deep space observation, but quick looks at solar system objects are also rewarding - at 20x you may be able to glimpse Saturn's rings, the moons of Jupiter will be in evidence, and Earth's own moon will reveal intense detail.

The 20x80 size of giant binoculars provides the perfect balance between aperture and magnification. The Gemini 20x80 LW adds the additional features of a rubber-padded aluminum center-bracket for easy tripod mounting, 3° true field of view and remarkably light weight of just 5 lbs., 2.75 oz. The 20x80 LW’s lightness means that this big binocular can be mounted on a variety of medium-duty tripods that would normally be unsuitable for so large an instrument. That translates to a lighter overall setup and significantly reduces the investment necessary to procure a solid mounting. Each binocular is covered by our two-year warranty and 30-day return policy.

Every Garrett Optical binocular must pass a rigorous 14-point inspection that insures a high degree of both optical and mechanical performance, including accurate collimation. Any necessary adjustments are performed by a highly experienced technician on a U.S. Navy Mark V Collimator.

Tripod Package Available - Save $30:

Garrett Gemini 20x80 LW + Series 3000 Tripod - $309.95

Items must be ordered together to qualify for discount. Select your package with the check-box above, then click the "Add to Cart" button...

Click here for Technical Specs

Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger.

Gemini® Lightweight Series Specifications
MODEL	Gemini 10x50 LW	Gemini 11X56 LW	Gemini 12X60 LW	Gemini 15X70 LW	Gemini 20x80 LW
OBJECTIVE LENSES	50mm; 2 Elements, 1 Group	56mm; 2 Elements, 1 Group	60mm; 2 Elements, 1 Group	70mm f/4.0; 2 Elements, 1 Group	80mm f/4.1; 2 Elements, 1 Group
EYEPIECES	4 Elements, 3 Groups	4 Elements, 3 Groups	4 Elements, 3 Groups	4 Elements, 3 Groups	4 Elements, 3 Groups
MAGNIFICATION	10x	11x	12x	15x	20x
EYE RELIEF	18mm useable (19mm total)	18mm useable (19mm total)	17mm useable (18mm total)	18mm useable (19mm total)	16mm useable (17mm total)
EXIT PUPIL	5.0mm	5.1mm	5.0mm	4.7mm	4.0mm
APPARENT FIELD OF VIEW	66º	64º	64º	65º	60º
TRUE FIELD OF VIEW	6.6º (346 ft./1000 yrd.)	5.8º (305 ft./1000 yds.)	5.3º (278 ft./1000 yds.)	4.3º (226 ft./1000 yds.)	3.0º (158 ft./1000 yds.)
WEIGHT	1 lb., 14.5 oz.	2 lbs., 4 oz.	2 lbs., 10.5 oz.	3 lbs., 1.5 oz.	5 lbs., 2.75 oz.
LENGTH	6.5-in.	7.6-in.	8.7-in.	10.5-in.	12.5-in.
CLOSE FOCUS	6m	11m	13m	20m	25m
IPD RANGE	57-72mm	57-72mm	57-72mm	57-72mm	57-72mm
COATINGS	Fully Broadband Multi-Coated	Fully Broadband Multi-Coated	Fully Broadband Multi-Coated	Fully Broadband Multi-Coated	Fully Broadband Multi-Coated
LIGHT TRANSMISSION	99.0%-99.7% per surface; >85% total	99.0%-99.7% per surface; >85% total	99.0%-99.7% per surface; >85% total	99.0%-99.7% per surface; >85% total	99.0%-99.7% per surface; >85% total
WARRANTY	2-year limited warranty	2-year limited warranty	2-year limited warranty	2-year limited warranty	2-year limited warranty

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Here's what reviewers and customers are saying about Garrett Optical's Gemini 20x80 LW/UL binoculars:

I received my binoculars promptly and perfectly collimated. Thank you for a great product [and] for a very good price [...] and I am WELL pleased.
- Phil Brown

I have only had my Garrett binocular since the end of July but I have been putting it to the test with both astronomy & watching birds. The reason I purchased the Garrett Gemini Giant binocular is I wanted something DIFFERENT from the ordinary, everyday field binoculars. Looking at the full moon through this binocular is nothing short of incredible. The Garrett Gemini binocular is so much brighter & clearer & sharper than anything I own. You would have to experience the difference to really appreciate it. With my other binoculars it just is not as exciting. (80mm really makes a big difference). I do long-distance bird watching at one of our local State Park Lakes. I really am thankful for not only the magnification but also the light-gathering capability. This binocular is wide-field & sometimes I feel like I can reach out & touch whatever it is that I am viewing. (Of course, this much magnification requires a solid tripod.) [...]. The Garrett Optical Gemini 20X80 LightWeight Binoculars are of the highest quality & I can't say enough good things about them. I am so very impressed with this product, & this company, that I am looking forward to owning other models as well. [...].
- Stan Baniszewski

I received my binocular today and wanted to let you know I am extremely impressed with it. I purchased the 20x80's as an upgrade from a pair of 10x50's. Not only can I see Jupiter's moons with greater ease, I can now faintly see the red belts above and below its equator. And this was on a relatively cloudy, moonlit night; I can't wait to see how they perform under optimal conditions. Thanks again for your terrific customer service, equitable pricing, and excellent binoculars!

- Joel Tonyan

Just purchased and tested the G2080LW. It is a terrific value, and the attention to detail of your company is oustanding. Five Stars!

- Joe Zigler

The binoculars were better than ever expected. I took them to the shooting range to see how they would work spotting targets instead of using my spotting scope, the answer "great," I really planed to use them for more than the range but it was a great first test, 100 yards then 300 meter spotting, outstanding results. It was a pleasure doing business with you, thank you for your timely answers to my email and thank you for a very, very good product. [...] You have a class A+ operation.

- C.S. Powell

I purchased the Gemini 20x80 LW Binocular from Garrett Optical after seeing several glowing reviews online about the company and its outstanding line of Binos. As a newbie to amateur astronomy, I had several basic questions pertaining to proper set-up, recommended accessories, and an appropriate tripod to accompany my new investment. Every seemingly trivial question I had was answered promptly, professionally, and thoroughly [...]. None of my other astronomical equipment purchased from other well-known companies even came close to the thorough and complete packaging in which my Binos arrived. They were perfectly collimated right out of the box, and I have been enjoying my binos immensely the past few months. If you are thinking about purchasing top-quality affordable binos, look no further! In my book, Garrett Optical is THE place to shop for binos and other accessories, there's nothing else.
- Kobi Nathan

The 20X80 LW Binoculars I ordered ... were
delivered to my door ... Almost exactly 24 hours later. I
am astounded by the prompt service. The binoculars arrived in good repair
and seem to work fine. I'd like to try them out on a few deep space
objects tonight, but it looks like the weather isn't going to cooperate. Again,
thank you for the prompt service. I will definitely recommend you to all my
friends in the [local] Astronomy Club. You can certainly call me a satisfied
customer!