A650 & A720 Lens Adapter Viewfinder Interference?

[mySeventhRib]

Okay, so I am choosing between the A650 and A720 right now. I know that the converter (wide & telephoto) lenses interfere with the camera's viewfinder. But on either camera does the lens adapter (Canon or Lensmate versions for the A650) itself interfere with the viewfinder at all? I ask because I see myself using filters far more frequently than the Canon wide and tele converter lenses.

Let me know your experiences with this scenario.

Thanks,
Dustin

[mySeventhRib]

Anybody know?

[mySeventhRib]

One more try...Does anybody know the answer to this question?!?

[Jim G]

Have you tried calling Canon or a large photo store like B&H, at a long shot? Or drop into a local camera store if there is one and see if they don't have both in stock so you can see?

[Newtophoto]

I have an Opteka lens adapter for my A650. The adapter does interfere with the viewfinder. For me this isn't a problem since I never use the viewfinder. Being that the end thread size is the same for the Opteka, Lensmate, and Canon adpters, I would think all would interfere with the viewfinder.

[traildad]

I have a 720IS and the lens adapter does block the viewfinder.

[RadAL]

A650.... it has the moveable LCD screen

[BBoi]

All adapters will affect the viewfinder because you are looking directly though aligned glass rather than via a DSLR lens which is usually pentaprism based meaning you see what the lens sees. Compacts compensate by having live view mode (see A640 with its flip out screen). DSLR's are only just now getting the flip out screens for themselves because it's far more awkward to make it work on a DSLR than on a compact.

You will find adapters cause acute shadows too when using flash on a compact, this is why DSLR's have popup flashes and external flash guns.

[mySeventhRib]

thank you newtophoto and traildad...that's all I needed to know.