This M68 × 1 extension adds a manufacturer-specified 8 mm effective length to a threaded optical train.
Threaded connection
It connects matching female and male M68 × 1 interfaces. The quoted spacing is the effective contribution when assembled; a protruding male thread is not an additional spacer once it is engaged.
Spacing application
Use it to build the required distance between a corrector and camera, allowing for the camera’s own flange distance and other adapters. It contains no focal reducer or field-flattening optics; changing physical spacing does not itself change the telescope’s native focal length.
Additional specifications
Optical path
8 mm (the male M68 thread is not taken into account)
Length of the male m68 thread
4 mm
Clear aperture of the adapter
63 mm
Thread interfaces
M68 × 1 female and male
48927
Data sheet
Manufacturer listed equipment
TS M68 extension ring
Manufacturer part number
TSVM688
Model
TS-Optics M68 × 1 extension — 8 mm
Outer diameter
74.1 mm
Specific References
MPN
TSVM688
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