Male thread: M42x0.75; Female thread: M42x0.75; Eliminates a range of focusing problems
Use this extension tube for getting the correct image scale or the exact spacing required for reducers or field flatteners
The extension tube has a T2 interior thread and a T2 exterior thread for elegantly solving spacing problems in astrophotography
Compatible Cameras: Fits a wide range of Pentax-k SLR/DSLR cameras; including Camera K-x K-r K-01 K-30 K20D K200D K2000 K1000 K100D Super K110D Etc
Telescope Adapter: Includes a T Ring for Pentax-k SLR/DSLR cameras and a 1.25 inch to M42 T Mount which has a rotatable inner ring to ensure proper orientation; allowing you to attach your camera to a telescope with a standard 1.25 inch eyepiece port
Alstar 1.25" 90-Degree Erecting Prism Optical Prism Inside Rather Than a Mirror which Makes Your Image Clear and Sharp
SAR 141
Alstar Universal L Type Metal Binocular Tripod Adapter for Binocular and Minocular - Black
SAR 42
Alstar 1.25Inch Metal Collimating Cheshire Eyepiece Without Laser for Newtonian Reflector Telescope - Long Version
SAR 105
Alstar 2" UHC (Ultra High Contrast) Filter - Superb Views of The Orion, Lagoon, Swan and Other Extended Nebulae
SAR 292
