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Our newest XL Series Binocular Telescope fills the gap between the BT-100XL-SD and the BT-127XL-SD in aperture and in price. Featuring 120mm apochromatic (FCD100) objectives, with a 670mm focal length, and 27mm of clear prism aperture (same prisms as the BT-127XL-SD), it performs very close to the BT-127XL-SD at substantially less cost, and 5 lbs. less weight (19.5 lbs.). Like the other SD models in the XL Series, it’s finished in iridescent “Luna Pearl” White with gold anodized trim.
Includes our premium 14mm (48x) 70° AFOV eyepieces. 30x (22mm) and 96x (7mm) are also available. The included heavy-duty case has wheels on one end for easy transport.
Every BT-120XL-SD is tested and tuned to perfection prior to shipping, with collimation certified to 168x. 3-year Limited Warranty.

Mounting Options:
Recommended tripods are the Oberwerk TR3 hardwood tripod or the Manfrotto 161MK2B, which has a crank-up elevator. Either tripod can be configured with the Oberwerk XL-280 Fork Mount or Manfrotto 612 NitroTech Head.
Fully-automated “go-to” operation is available using the iOptron HAZ31- details here.

XL Series Accessories

Additional information

Weight 60 lbs
Dimensions 35 × 22 × 18 in

2.35° (30x)

Exit Pupil

4.0mm (30x)

Eye Relief

15.0mm usable (48x)

Minimum Focus

25 meters

IPD Range


Product Weight

19.5 lbs.


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