Linhof Viewfinder d-dx this Canon Powershot A550 might

this Canon Powershot A550 might do the trick

6GII ED AF-S Nikkor lens for Nikon DX-format digital SLR cameras

This professional lens gives exceptional reach and flexibility on either full frame or APS-C sensor EF cameras

It provides a 1

Linhof Viewfinder d-dx this Canon Powershot A550 mightThis Linhof viewfinder is suitable for 4x5 and 5x7 cameras, with variable fields of view from 90mm (or 120mm, for 5x7) to 360mm (or 500mm). It's adjustable for portrait or landscape shooting, too, which is handy. These viewfinders are mostly useful as a framing aid: you can use them mounted to the camera, or as a handheld "director's viewfinder. The view through the optics is satisfactory, though you'll need to refocus your eye to see the framelines