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35mm 2” CNC extension tube
you still must pay attention to the unavoidable tolerance between the installation of the collimator and internal diameter of a focuser
The item is 100% made in Taiwan
The secondary mirror has a 62
GSO 2" ED 2x Barlow Lens Free Shipping in US mainland2x fully apochromatic Barlow for any 2" eyepieces and include a 1. 25" adapter for 1. 25" eyepieces Precision machined aluminum barrel with high quality black anodized finish and knurled ring to aid in handling The 2x Barlow apply 2" huge ED (Extra Low Dispersion) lens to eliminate chromatic aberration, and delivers sharp imaging in 2x magnification. Its inner a brass compression rings on tube and adapter are designed to avoid any scratch when
