In Stock

Reptiles and Amphibians of the Sonoran Desert: A guide to 41 of the most commonly encountered reptiles and amphibians native to the Sonoran Desert ...

11" diffraction limited Schmidt-Cassegrain telescope Celestron's premium StarBright XLT coatings Fully computerized dual fork arm Altazimuth mount...

ASI294MC ASI294 is the first camera in the world that equiped with SONY latest sensor IMX294CJK. Diagonal 21.63 mm (Type 4/3) Approx. 10.71M-Eff...

Description The secondary mirror cover can be used to cover the rear side of the secondary mirror. This considerably reduces the cooling of the se...

100% Safe for Eclipse Viewing Lightweight and generally does not require rebalancing tube assembly. Stronger than any other solar filter film on t...

Antlia H-alpha EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD)5 on u...

Fisher Space Pen’s Sealed Pressurized Ink Cartridge performs in temperatures from -30º F to +250º F, underwater, in zero gravity, at any angle - ev...

Whether you’re in the field filling out a tag for that once-in-a-lifetime trophy or marking off your checklist of the never-ending chores that need...

To achieve true dynamic balance with a fork-mounted SCT, both top and bottom weights are required. See stock number CWCPC925-CS for the complete to...

Use with focuser FTF3015B-A Known To Fit Celestron C11/CPC11, C14/C14 Edge HD telescopes Thread on Entry (OTA | FRONT) Side of Draw Tube 3.29x16tpi...

Use this female T-thread to male T-thread spacer to extend standard T-thread adapters to achieve the correct backfocus for your telescope. Availabl...

Author: Robert Michael PylePaperback: 280 pagesThis essential handbook covers where to find butterflies; how to observe and photograph them; their ...

In manufacturing, it is not often that a design becomes instantly classic or iconic. It takes a lot of time, appreciation by its peers, and a trac...