Improve Focusing Problem: The extension tube has a M48x0.75 interior thread and a M48x0.75 exterior thread; elegantly solves the spacing problems in astrophotography and improve a series of focusing problems
Variable Combination: The required spacing can be achieved by combining several extenders of differing lengths; Use this extension tube for getting the correct image scale or the exact spacing required for reducers or field flatteners
Aluminium Alloy Material: All metal construction and anodizing aluminium process; resistant for long time use
Eliminate Extra Light: The design of the internal thread can eliminate stray light and reflected light; making the image clearer and perfect
100 Percent Satisfaction: If you have any question with our product; please contact us freely
Alstar Telescope Diagonal, 45 Degree 1.25 Inch Correct Image Diagonal Prism | Upright and Non-Reversed Image, Metal Connectors, Filter Thread, Coated for High Contrast, Telescope Accessory for Refractor
SAR 126
Alstar M48X0.75 Female to M42X0.75 T / T2 Male Thread Telescope Adapter | M48 Inner Thread to T2 Outer Thread, Connection to Eyepieces, Cameras, Telescopes, No Focusing Problems, Anodizing Aluminium
SAR 68
Alstar Telescope Helical Focuser 2Inch High Precision Helical Micro Focuser | With M48x0.75 Thread for Camera, 0.1mm Focusing Precision with 39mm of Travel, Precise Focusing, Black Anodized Aluminum
SAR 496
Alstar Telescope Filter 1.25 Inch O-III Narrowband Cuts Light Pollution | Enhance Contrast in Dark Skies, Observe Clear Veil, Ring, Dumbbell and Orion Nebula, Among Many Other Objects
SAR 318
