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Coma corrector for Newton telescopes that neither reduces the focal length nor the image field of your telescope...

This is a Dall-Kirkham optical design with coatings that are optimized to transmit in infrared or ultra violet wavelengt...

This is a Dall-Kirkham optical design with coatings that are optimized to transmit in infrared or ultra violet wavelengt...

This is a Dall-Kirkham optical design with coatings that are optimized to transmit in infrared or ultra violet wavelengt...

This is a Dall-Kirkham optical design with coatings that are optimized to transmit in infrared or ultra violet wavelengt...

Six solid, different bore size motor couplers are provided so you can select the coupler that fits your focuser’s shaft...

The M48 sensor tilt plate is independently developed by ZWO and specially made to match telescope with M48 thread. The t...

The 645RD QE0.72x focal reducer is a high-performance reducer that further enhances the attractiveness of the FSQ-106EDX...

The phase contrast device is used in the phase contrast microscopy to observe transparent low-contrast samples that are...

This is a Dall-Kirkham optical design with coatings that are optimized to transmit in infrared wavelengths. There are no...

The Ermenrich Zing AL45 Battery Tester is an intuitive tool that enables you to quickly check the condition of the car b...

This dovetail bar connects to the top of the Rowe-Ackermann Schmidt Astrograph 8, and allows attachment of accessories t...

The camera makes it easy to work with samples that are moving and is suitable for classroom demonstrations. The high-spe...

The TSA-120 is a lightweight, compact and economical refractor, whose performance is similar to that of the TOA, Takahas...

The 20" CDK is a revolutionary new telescope optical system that is designed to excel at imaging on large format CCD cam...

The objective is designed for observations in transmitted polarized light. The special optics of the strain-free polariz...

The objective is designed for observations in transmitted polarized light. The special optics of the strain-free polariz...

The objective is designed for observations in transmitted polarized light. The special optics of the strain-free polariz...

The objective is designed for observations in transmitted polarized light. The special optics of the strain-free polariz...

The TSA-120 is therefore a lightweight, compact and economical refractor, whose performance is similar to that of the TO...