https://www.skyatnightmagazine.com/advice/buying-secondhand-telescope-what-need-know
Buying a secondhand telescope can be tricky. How do you know you're getting a good deal? Read our guide to secondhand astronomy equipment.
buyingsecondhandtelescopebinocularscameras
https://www.qhyccd.com/
Oct 21, 2024 - QHYCCD design astronomical Cooled and Uncooled, CMOS and CCD cameras. QHYCCD also provide advanced cooled scientific cameras for researches.
astronomy camerasscientificqhyccd