TS-Optics TSJK 1.25-inch collimation cap The TSJK is a simple plastic cap with a central viewing opening for checking telescope optical alignment.
Manufacturer model: TS-Optics TSJK 1.25-inch collimation cap · Specifications checked against manufacturer data on 2026-11-04
The TSJK is a simple plastic cap with a central viewing opening for checking telescope optical alignment.
It fits a 1.25-inch focuser socket and holds the viewing position near the optical axis. Use the telescope’s collimation adjustments to bring the relevant mirror references into alignment.
It is a passive visual centring aid, rather than a laser or an artificial-star projector. It contains no active electronics.
TS-Optics manufacturer documentation
Exact named TS manufacturer model and its published technical table checked. Unpublished dimensions, capacities and package items are not inferred.
| Fits to | 1.25" receptacle |
|---|
Data sheet
Specific References
TS-Optics TSJK 1.25-inch collimation cap The TSJK is a simple plastic cap with a central viewing opening for checking telescope optical alignment.
Manufacturer model: TS-Optics TSJK 1.25-inch collimation cap · Specifications checked against manufacturer data on 2026-11-04
