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Home Astro-Imaging T Thread & M48 Extensions Explore Scientific M48 Extension Tube Set
The Explore Scientific M48x0.75 extension tube set comprises of 5 tubes, 30, 20, 15, 10 and 5 mm length, all are anodised matt black for controlling stray light.For adjusting different distances of the camera to the focal plane of the telescope or a corrector/field flattener. There is an M48.0.75 internal and external thread in each individual tube. The M48x0.75 thread is also called a 2.0 inch filter thread. Camera specific bayonet adapters or colour and nebula filters can be used with these tubes. Included are 5 different tubes with the steps 30, 20, 15, 10 and 5 mm. The larger free inner diameter of 45.0 mm effectively prevents undesirable vignetting of the camera sensor. The outer diameter of the sleeves is exactly 50.65 mm and can therefore be mounted directly in any 2 inch diameter eyepiece adapter - useful for adding backspace to eyepieces if needed.FEATURESExtension sleeves M48x0,75 in setFive extension sleeves: 30, 20, 15, 10, 5 mm (giving a total of 80mm backspace)Use with correctors and field flattenersDistance adjustment from camera to focal planeSuitable for camera-specific bayonet adaptersAlso suitable for 2.0 inch colour and nebular filtersInternal and external thread M48x0.75 mm (large T2 thread)Large inner diameter of 45.0 mmOuter diameter is 50.65 mm (2 inches)Black matt anodized aluminiumTotal weight 85 gramsWHAT'S INCLUDEDExtension sleeves M48x0.75 (5 pieces)
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