Dear Eagle Optics,
I am attempting to match my Canon 60D to a Simmons brand spotting scope. I measure the outside diameter of the spotting scope lens to be between 1.25 and 1.5 inches. I have a T-Ring for my camera.
My question is whether the TSN-DA1 or DA-1 would be a reasonable fit between my camera T-Ring and the Simmons Spotting scope.
Thanks for your interest in Eagle Optics.
Unfortunately, the only way you could connect your DSLR to that scope is if Simmons manufactures a specific adapter for your scope.
The Kowa adapters are not universal and will not adapter from your camera to your scope.
You would either be looking for a collar style adapter like the DA1 that would accept a DSLR with a fixed 50mm lens over the eyepiece or a photo (telephotography) adapter that would replace both the lens of your camera and the eyepiece of your spotting scope, with a T-ring like you mentioned bridging the gap.
If you have any further questions, we’ll be happy to try and help, but I’d recommend you see if Simmons makes a DSLR adapter of some sort.
That I know of, very few manufacturers do make these.
If you have a small-bodied point and shoot with a below 4x optical zoom, the possibilities for connection are far greater.