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The ZWO FF80 APO is a refractive astrograph with the powerful flatfield optical design which saves you from the expensiv...

The ZWO FF107 APO is a refractive astrograph with the powerful flatfield optical design which saves you from the expensi...

The ZWO FF130 APO is a refractive astrograph with the powerful flatfield optical design which saves you from the expensi...

The ZWO FF65 APO is a refractive astrograph with the powerful flatfield optical design which saves you from the expensiv...

A Comprehensive Observer’s Handbook of the Known Moon - All three volumes sold as a combined set for a one-time purchase...

In a clear night, most surfaces radiate much heat and cool down. As soon as the temperature falls below the dew point, d...

Converts 2" female into 2" male thread. Can be used to connect Baader Hyperion Mark III Zoom directly to a Baader Star D...

The ZWO new Nikon-T2-Ⅱ adapter is independently developed by ZWO. It’s composed of a 29mm new Nikon-T2 adapter and a 5mm...

This star diagonal is a very good alternative to simple prisms and mirrors which often only have a plastic body...

The Ermenrich NetGeeks NP60 combines the functionality of a cable tester, cable length tester, and optical multimeter. I...

A battery coupler from Pegasus Astro works as a dummy battery for your original camera battery. Using the battery couple...

The MAGUS Stereo A10 research stereomicroscope is designed according to the CMO design. This powerful device can also ex...

Transforms the LS100MT into a 3-lens ED Apo for observation & photography of moon, planets & deep-sky...

Transforms the LS80MT into a 2-lens ED Apo for observation & photography of moon, planets & deep-sky...

The Ermenrich Ping SM90 is a 3-in-1 device that combines the functionality of a stud detector, laser tape measure, and d...

ZWO has released a brand-new FF65APO 0.75× full frame reducer with a four-element optical design. It has a reduction fac...

The Astronomik [O III] CCD filter is a super-narrow band emission line filter for CCD photography from observation sites...

The GM 1000 HPS reaches a Satellite tracking and positioning speed from 20 degrees / sek. with an average positioning ac...

The GM 3000 HPS reaches a Satellite tracking and positioning speed from 12 degrees / sek. with an average positioning ac...

The GM 3000 HPS reaches a Satellite tracking and positioning speed from 12 degrees / sek. with an average positioning ac...