An assembly designed for the optical tube
The Takahashi 125WM double collars, part number TKA29420M, are designed for the TSA-120 and TSA-120FT telescopes. Their inner diameter is 125 mm, and the listed weight is 1.3 kg. The exact part number distinguishes this set from other clamps of the same diameter: their intended use and mounting plate should not be considered interchangeable without verification.
A backplate for parallel accessories
The set consists of two clamps and a top plate. The holes and threads on the extension plate allow accessories to be attached above the main tube, for example, for a photography setup or a parallel guide. The length of the extension plate depends on the tube model; no dimensions not listed in the spec sheet are extrapolated here.
Design the bottom interface
The clamps are supplied without a bottom plate or dovetail. Takahashi recommends the M Plate (TMP02200) for this model. This recommendation does not mean that the plate is included. Another plate or dovetail can be used if its hole patterns and center distances match those of the collars and the chosen mount.
Protect the tube and check the assembly
The construction uses cast aluminum with hand-finished details. Felt pads protect the optical tube from contact with the clamps. Before assembly, consult the official diagram of the mounting plate and clamp mounting holes to select the appropriate interface. Next, check the tightness and balance with the accessories actually installed. No tube, guiding instrument, or camera is listed as included with this kit.
Technical specifications
Takahashi 125WM: 125 mm double clamps
| Features |
Value |
| Reference |
TKA29420M |
| Name |
125WM |
| Inner diameter |
125 mm |
| Weight |
1.3 kg |
| Compatible tubes |
Takahashi TSA-120 and TSA-120FT Binoculars |
| Recommended turntable |
M Turntable (TMP02200) |
Composition
Pair of clamps and top plate. Does not include a bottom plate or dovetail; optical tube and parallel accessories not included.
Takahashi's Official Profile