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Kestrel Glassing Systems ATC Ring Adaptor

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The Kestrel ATC Ring Adapter offers a rotating collar with integrated arca swiss mount for your Swarovski ATC Spotting scope. Made with an advanced industrial additive manufacturing process from extremely durable polymers, this adaptor is woven throughout with continuous carbon fiber for extra strength and durability. This is primarily made for the ATC, but would be a very stable mount for your STC as well!  

  • Only weighs .65 ounces
  • Installs in seconds.
  • Quick locking feature to hold ATC in place.
  • Strong integrated arca swiss mount
  • accepts 1/4" 20 screw for mounting to non arca plates

Customer Reviews

Based on 5 reviews
If you REALLY need to rotate

It’s the only way I can effectively glass off my window so I bought it. However, I feel a bit ridiculous for spending $120 on a 3D printed simple part that doesn’t work very well. If the design had circular ridges inside the truncated clamp, the user wouldn’t constantly fight their ATC slipping out of the mount

Its ok

It does what its supposed to do where the ATC couldn't from the factory. Im not sure its worth the 120 bucks but where else would you get one? I wish the actual plate would of been slightly wider for a more secure bite. Adjusting the spotter is definitely a 2 hand operation like the others had mentioned. The tightening screw backs out after so many adjustments so make sure you bring a proper sized allen wrench with you into the field.

A solid maybe

I agree completely with L.N. the concept is good, but man is it touchy. I can't decide if it is stable enough, when locked down, so still comparing to using a plate on the bottom of it vs the adaptor. The product is entirely too expensive for what it does, to me, given how touchy it is. You can certainly rotate the scope and having an Arca foot is nice, but I think it makes the scope a bit less stable on the tripod head.

Kestrel ATC Ring

Great idea but could have been executed better. It's touchy in that the ring wants to slide back ever so slightly and when re-tightened it locks up your spotter adjustment ring. It's definitely a two hand operation when rotating your scope. Is it worth having on the scope? Most definitely but for the price I expected a more refined product.

Christopher Collier
Works great on STC

Using on my STC works great.