Takahashi CCA-250 98mm EXT AUX Ring

Product Overview

The 98mm EXT AUX Ring is a Takahashi M98 extension ring built for the CCA-250's camera train. It connects to the camera rotator through the TKA82595 connector, and the telescope-side M98 sleeves attach to it through the TKA86204 adapter.

Who It's For

This is a good match if you run a CCA-250 and need an additional M98 extension point between the telescope's M98 sleeves and the camera rotator.

Key Features & Design

• M98 thread family: matches the CCA-250's own accessory ring system.
• Connects to the camera rotator: pairs with the TKA82595 connector on the camera side.
• Connects to the telescope's M98 sleeves: pairs with the TKA86204 adapter on the telescope side.

Recommended Uses

Extending a CCA-250 imaging train between its M98 telescope-side sleeves and the camera rotator.

Compatibility and Accessory Notes

Built for the CCA-250, using the TKA82595 connector on the camera-rotator side and the TKA86204 adapter on the telescope side. The Takahashi Back Focus Guide tabulates every Takahashi adapter's light path alongside each telescope's back focus target and is a good starting reference for the rest of your CCA-250 chain.

Frequently Asked Questions

Is it difficult to set up?

No — it connects between the TKA86204 telescope-side adapter and the TKA82595 rotator connector with no adjustment.

What is it used for?

Extending the CCA-250's M98 camera train between the telescope-side sleeves and the camera rotator.

Does it come with the TKA82595 or TKA86204 parts?

No — those are the connector and adapter it pairs with on either side, and are separate parts.

Bottom Line

An M98 extension ring for the CCA-250's camera train, bridging the telescope-side sleeves and camera rotator.