Swarovski ATX / STX / BTX Objective Module

The modular design allows you to swap the objective lens module independently of the eyepiece module. This means you can switch between different lens sizes—like a smaller, lighter 65mm for hiking or a larger 95mm or 115mm for maximum light gathering—without needing to purchase an entirely new spotting scope system.

Your choice depends on your primary use case. The 65mm module is best for portability and long treks where weight matters, while the 85mm, 95mm, and 115mm options offer significantly better light transmission and resolution, making them ideal for low-light conditions or long-range observation.

Yes, this objective module is designed to integrate seamlessly with the ATX, STX, and BTX eyepiece modules. You can mix and match any objective size with any of these eyepiece types to create the specific viewing configuration you need.

Absolutely. The module is fully waterproof and features a robust, weather-resistant construction that is submersion-tight up to 13 feet. It is built to perform reliably in harsh environments, from -13°F to 131°F.

Yes, because the lens diameters vary, the filter threads are specific to each model. The 65mm uses an M 67 x 0.75 thread, the 85mm uses M 87 x 0.75, the 95mm uses M 97 x 0.75, and the 115mm uses M 118 x 0.75. Always verify your specific module size before purchasing filters.

The weight varies significantly depending on the size you choose, ranging from 27.3 ounces for the 65mm module up to 74.1 ounces for the 115mm version. If weight is a major concern for your field work, the 65mm or 85mm modules are generally the most manageable options.