Adapter: T2 male-male thread - with 1.25" filter threadby Baader Planetarium
This part fits into female T2 threads and accepts also 1.25" filters. So you have a very short 1.25" filter adaption for T2 systems.
Fields of useCCD photography - when every mm of optical length is important and there is no
other posibility to include a filter. E.g. you can screw this adapter directly
into the T2 thread of your CCD camera (for example ATIK) and place the filter directly in front of your sensor.
 Products specifications
| Total length | 10 mm | 
| Connecting thread | end-to-end male T2 thread | 
| Connecting thread | internal female thread for 1.25" filter |