The Swarovski BTX Module Eyepiece

The unique Swarovski BTX Module Eyepiece is specially designed for the ATX and STX Modular Spotting Scope Series. The BTX Module Eyepiece reduces eye fatigue by allowing birders to keep both eyes open while viewing through the dual eyepieces. Of course, you will need to attach the BTX Module to either the Swarovski 65mm or 85mm Objective Module that results in a 30x spotting scope view; or attach it to the 95mm Objective Module that yields 35x magnification.

The optics feature Field Flattener and High Definition Lenses that provide edge to edge sharpness, vivid colors and contrast, and eliminate linear distortion. Physical features of the Swarovski BTX Module Eyepiece include an adjustable forehead rest, adjustable interpupillary distance viewing, right eye diopter control, and a viewing sight. There is no zoom capability available, but adding the ME 1.7x Magnification Extender will provide 50x magnification for the 65mm or 85mm Objective Modules, or 60x magnification for the 95mm Objective.

You can get more information about the Swarovski BTX Module Eyepiece, which is on sale now at Optics4Birders at https://www.optics4birding.com/swarovski-btx-module-eyepiece.html. Also check out the Swarovski Objective Modules and ME 1.7x Magnification Extender.

To learn more about the Swarovski BTX, ATX, and STX spotting scope system, click on the Swarovski advertisement at the top of this issue of The Birding Wire, which you can also access at https://www.swarovskioptik.com/birding/atx-stx-btx-c210201 to review the variety of high quality Swarovski spotting scopes and binoculars.