I inherited an old telescope and wanted to try astrophotography. Nothing would really fit well so I made a collection of adapters to securely connect an svbony SV105 astrocam. 

Collection of adapters for a telescope to a svbony SV105 astrocam 
 

Telescope base connection dimensions: diameter 32.8 mm, height 21.4 mm
Camera bottom: diameter 31.4 mm, height 14.9 mm
3x magnifier insert: diameter 29.9 mm, height 73.2 mm

Base to lens to camera adapter: 38mm long
ID lower 33 mm 
ID upper 31.3 mm
OD 34.8 mm

Base to longer lens camera adapter: 56.6 mm long
ID lower 33 mm 
ID upper 31.3 mm
OD 34.8 mm

Base to 3x lens: 95.5 long
ID lower 33 mm
ID upper 29.4
OD 34.8

3x magnifier to lens to camera: 45.1 mm long (Slides over base to 3x lens part)
ID lower 35.2 mm
ID upper 31.3 mm
OD

3x magnifier to longer lens to camera adapter: 64.8 mm long (Slides over base to 3x lens part)
ID lower 35.2 mm
ID upper 31.3 mm
OD 37.1 mm