SVBONY SV121 Red Laser Collimator, Adjustable 1.25 inch Collimation Eyepiece, with 2 inches Adapter, Telescope Accessory for Newtonian Dobsonian Marca Telescope - FF9192A

• Next Generation. Retain only one optimal gear position brightness. Reduce cumbersome manual adjustment. Standard hex wrench to self-calibrate coaxial problem. The spot shape is a dot not a grainy elliptical point High-end module design.The module adopts high-end spherical module, high sensitivity and easy adjustment. Adopts 3-piece glued optical glass lens for stable spotting better focusing effect and less halo. Make the spot shape is a dot instead of a grainy elliptical point Adjustable collimator. External effects of the product during transportation and use may cause off-axis problems.You can calibrate the coaxial problem yourself by giving away the standard hexagonal wrench Full metal structure.High-end atmosphere. CNC precision lathe machining of the laser unit has a front opening from which the laser beam can be emitted Resistance to sudden changes in temperature difference.The sudden temperature difference does not change the spot size. It is resistant to extreme cold weather and can be used under extremely cold weather of minus -30 degrees Celsius without affecting the use effect