Bresser AR90/500 Camera Guiding Kit: complete autoguiding in a box
The Bresser AR90/500 camera guiding kit contains everything for automatic guiding: an AR90/500 guide telescope, a guiding camera with an ST-4 port, and a dovetail clamp for mounting. Autoguiding continuously monitors a guide star and corrects your mount, ensuring that stars remain sharp and round even during exposures lasting several minutes.
No searching for separate parts and puzzling over backfocus: this kit fits and works out of the box.







This is how you assemble the set
Attach the dovetail clamp to the carrying handle of your Bresser Messier or Explore Scientific telescope, clamp the AR90/500 onto it, connect the camera via ST-4 to the guiding port of your mount and via USB to your computer. Within minutes you will be guiding.

Why a separate guiding telescope
With a 90 mm aperture and a 500 mm focal length, the guide telescope almost always finds a suitable guide star, even in star-poor fields. The main telescope remains completely free for your camera.
Featured accessories
The kit requires a mount with an ST-4 guiding port, such as the Bresser EXOS-2 GoTo or the Nebula GoTo mounts.
For whom yes and for whom no
- ✓ Astrophotographers making the step to long exposures
- ✓ Owners of an EXOS-2 GoTo or Nebula mount with ST-4 port
- ✗ If you only photograph the moon and planets: guiding is not necessary
Specifications
| Guide telescope | AR90/500 (90 mm aperture, 500 mm focal length) |
| Tracking camera | With ST-4 guiding port and USB |
| Assembly | Vixen-style clamp for Messier and Explore Scientific carrying handles |
| Required | Mounting with ST-4 port |
You can find more accessories for this merk at the Bresser 1TP5 Page.





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