Due to high demand, the GT100-90 is backordered. We recommend that you place a backorder to secure a place in line (we don't collect payment until your order ships), or email us and ask to be added to the notification list for the GT100-90.
Essentially a scaled-up version of our popular 70mm F/5.4 model, the Garrett® 100mm F/6.1 binocular telescope is designed with integrated 90º-angled 1.25-inch helical focusers, which makes it a great choice for amateur astronomy.
It weighs in at just 14.3 pounds - about half the weight of competing designs, and only one pound heavier than our GT100-45. Here's a binocular that will accept virtually all your 1.25" telescope eyepieces and still be light enough for quick and easy setup. The precision helical focusers are angled at 90º to make observing even at the zenith comfortable. This binocular offers the best features of a rich-field telescope – such as the ability to easily vary magnification – without sacrificing the three-dimensional viewing experience of a binocular.
The flat-field objective lenses operate at an F/6.1 focal ratio, which is slow enough to deliver high-contrast views of deep space objects and solar system targets alike. From quick looks at the moon and brighter planets to comet hunting, the Garrett® GT100-90 binocular telescope can take you wherever you want to go. The binocular includes a set of standard 1.25" oculars, 18.5mm (63° AFOV) focal length, yielding 33x magnification and a true field of view of 1.9°. Additionally, you always have the ability to expand your magnification range by inserting virtually any 1.25" telescope eyepiece from 40mm down to about 9mm. All air-to-glass surfaces in the air-spaced achromatic objective lenses and the prisms are broadband multi-coated, and the precisely-polished prisms are crafted from high-index BaK4 optical glass. The cast-aluminum binocular body features a durable and attractive glossy white finish and integrated retractable dewshields. Matching removable carrying handle included (not shown).
One special feature built into the 100mm F/6.1 binocular telescope is the unique twist-lock compression ring eyepiece holders - this is essentially a scaled-down version of the system used on our 150mm binocular telescope, and it makes switching and properly centering eyepieces a snap.
A dovetail base complete with adapter for our MRRF finder is now available pre-installed for an additional $25.00 at time of purchase. This base replaces the carrying handle.
We have two recommended mounting solutions for these instruments: For those looking for an affordable, conventional tripod the Garrett Series 5000 is hard to beat. What's more, the Series 5000 is available as a package with the GT100-90 for just $200 additional. An even better, though more expensive solution is the Helix 10-inch fork mount. You can also use many heavy-duty tripods or parallelogram mounts with the standard ¼-20 threaded mounting plate that's integrated into the design. Included with each binocular telescope is a high-quality aluminum-trimmed carrying case.
Each binocular telescope is individually tested for collimation as part of our 14-point inspection, and any necessary adjustments are performed by a highly-experienced technician. Collimation is adjustable by experienced users. It is also covered by our two-year warranty and 30-day return policy.
Tripod Package Available - Save up to $50:
Items must be ordered together to qualify for discount. Select your package with the check-box above, then click the "Add to Cart" button...
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