Description

This M42 thin metal spacer ring is a practical optical fitting for stargazing photography to calibrate rear focal length. The flat metal gasket locks filters and optical components in accurate positions, featuring standard M42 thread that matches most mainstream telescope mounting structures. It serves as auxiliary imaging assembly hardware to simplify equipment assembly without complicated operating steps.

Features

-Color: Grey

-Material: Stainless steel

-Size:5.20X5.20X0.01cm/2.05X2.05X0.00in

-Stable Optical Alignment Design: The flat spacer fills the gap between cameras and telescope bodies to cut down shaking, keeping optical paths aligned steadily throughout observation and shooting

-Climate-Adaptive Metal Body: Stainless steel raw material resists temperature fluctuation and surface abrasion, adapting to diverse outdoor field environments for long-term repeated use

-Multi-Scene Optical Fitting: It works as rear focal calibration gasket and M42 interval spacer, compatible with different telescope and camera combinations to support various shooting demands

-Accurate Interval Calibration: Users can adjust the flange separation distance with this gasket to match the optical path standard of M42 imaging gear and capture clear, distortion-free celestial frames

-Straightforward Fitting Operation: Standard threaded structure supports convenient assembly and disassembly, easy to add or swap among telescope extension parts and camera spacer combinations

5 x Spacer Ring

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