Quote Originally Posted by shutterfinger View Post
You can measure the Inside Dimensions of the wire finder frame and the ID of the film gate and calculate the ratio between them then convert it to the equivalent for the roll film format you're using, cut a frame insert for the wire frame from foam core or similar material. Makes framing easier. One needs to take the lens angle of view into account when using lens outside of "normal" for the format focal length(s) when using a "sports" finder.
That sounds like a reasonable compromise between accuracy and convenience, thanks!