- Description
- Specifications
- Downloads
Product Overview
The Camera Angle Adjuster S rotates your camera to any framing angle and locks it there for the exposure, without disturbing the spacing already set in your imaging train. It threads on with an M55.9 x 0.75 fitting and Takahashi publishes two length figures for it: 12.3 mm, measured from the tip of the left ring to the base of the male thread, and 20 mm, the part's outer thickness. It's the current version of what Takahashi previously sold as the CAA (Sky-90), and the two are interchangeable.
Who It's For
This is a good match if you image through an FS-78, FS-60C, FC-60E, or Sky-90 II and want to rotate your camera to frame a target without breaking down the imaging train to do it.
Key Features & Design
- M55.9 x 0.75 threaded fitting: matches the drawtube interface on the FS-78, FS-60C, FC-60E and Sky-90 II.
- Full rotation, then lock: turn the camera to the framing you want and lock it for the exposure.
- Two published length figures: Takahashi lists both a 12.3 mm reference measurement and a 20 mm outer-thickness figure for this part — real numbers to build into your backfocus total.
- Compatible with the earlier CAA (Sky-90): a direct match if you're adding to or replacing a part in an existing Takahashi imaging train.
Recommended Uses
Framing adjustments on FS-78, FS-60C, FC-60E and Sky-90 II refractors; rotating a guide or imaging camera to align a target without loosening the whole train; quick reframing between targets in an observatory setting.
Compatibility and Accessory Notes
Threads with M55.9 x 0.75 into the FS-78, FS-60C, FC-60E and Sky-90 II drawtube. Takahashi's catalog publishes two figures for this part: 12.3 mm, measured from the tip of the left ring to the base of the male thread on the right side, and 20 mm, the adjuster's outer thickness. Both are worth having on hand when you're totaling backfocus — the Takahashi Back Focus Guide lists this part alongside every other Takahashi adapter. Compatible with, and interchangeable with, the earlier CAA (Sky-90).
Good to Know Before You Order
Takahashi publishes two figures for its length. 12.3 mm is measured ring-tip to thread-base; 20 mm is the part's outer thickness. Which one applies depends on how you're measuring your train — send us your setup and we'll work out which figure to use.
Frequently Asked Questions
Is it difficult to set up?
No — it threads onto the drawtube like any M55.9 adapter, and rotation is a simple loosen-turn-lock motion.
What is it best used for?
Rotating a camera on an FS-78, FS-60C, FC-60E or Sky-90 II to frame a target without rebuilding the imaging train.
Does it affect my backfocus?
Yes — Takahashi publishes a 12.3 mm reference figure and a 20 mm outer-thickness figure for it, both listed in the Back Focus Guide.
Is it the same as the old CAA (Sky-90)?
Yes — Takahashi treats the two as compatible and interchangeable.
Bottom Line
An M55.9-threaded camera rotator for the FS-78, FS-60C, FC-60E and Sky-90 II that locks your framing in place, with both of Takahashi's published length figures on record for your backfocus total.
| Product code | TKA21200N / TKA21200 |
|---|---|
| Also sold as | CAA (Sky-90), interchangeable |
| Attachment | M55.9 x 0.75 |
| Light path length | 12.3 mm (ring tip to thread base); 20 mm outer thickness |
| Compatibility | FS-78, FS-60C, FC-60E, Sky-90 II |
Shopping Guide
- Takahashi English Catalog 2025 — PDF, 8.63 MB
System Charts, Diagrams and Adapter Guides
- Takahashi Telescope Backfocus Table — PDF, 71 kB
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