15mm finder question

[kemal_mumcu]

I'm considering the V2 cosina 15mm lens for use with film and am wondering about the various finder options. I notice on Gandy's site that the 15mm and 25mm finders are optically the same, only the 25mm finder has lines for 25mm lenses. The 15mm finder has no lines and I imagine that one uses the entire frame to compose.

Should one get the 15mm version or the 25mm version? Would the lines in the 25mm version get annoying for use with a 15mm lens? I've often pondered buying a 24/25mm lens and wonder if the 25mm finder could do double duty for me? Has anyone else ever tried this?

Thanks in advance.

 

[laptoprob]

If I would have had the choice, I would have opted for the 25mm one with brightlines. For double purpose and also for a feel of framing (distance from frame to edge). With the regular 15mm finder I never know how accurate it really is.