OTA · 2007–2019
Takahashi TSA-102

Key specifications
| Aperture | 102 mm |
|---|---|
| Focal length | 816 mm |
| Focal ratio | f/8 |
| Optical design | Triplet APO |
About
102 mm air-spaced ED triplet 'Super Apo', 816 mm focal length at f/8. The 4-inch member of the TSA line, highly regarded for visual sharpness; later discontinued, leaving the TSA-120 as the surviving TSA.
Where to buy
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