The latest innovation from Bob’s Knobs is a set of tool-free collimation knobs for Meade’s LightBridge telescopes. Starting at $45 for a complete set, the primary- and secondary- mirror knobs replace the screws supplied on Meade’s 8-, 10-, and 12-inch models. Also available are replacement primary-mirror springs for $16; these are stronger than the factory versions and won’t sag under the weight of the mirror cell. When ordering, please specify which LightBridge telescope you own.

Contact: Bob’s Knobs, 6976 Kempton Rd., Centerville, IN 47330; 765-855-5109; www.bobsknobs.com

SkyandTelescope.com's New Product Showcase is a reader service featuring innovative equipment and software of interest to amateur astronomers. The descriptions are based largely on information supplied by the manufacturers or distributors. Sky & Telescope assumes no responsibility for the accuracy of vendors statements. For further information contact the manufacturer or distributor. Announcements should be sent to nps@SkyandTelescope.com. Not all announcements will be listed.