r2 framelines coverage

[tritiated]

Hi chaps, I was reading a bit about the bessa R2 on cameraquest, and I read this particular bullet-point:
[R2] Framelines designed to show 87% of lens coverage at 3 meters
This perplexed me somewhat. I appreciate that rangefinder framelines are indications of framing, but I didn't realise they were designed to underestimate the size of the frame slightly. In this instance, would for example the 35mm framelines describe ~100% of the 40mm focal length (based on 87% lens coverage)? Or have I misunderstood this particuar bullet point?

next question - used R2 or R2A...haha.. prices??

 

[ferider]

You are right wrt 40mm lenses. I tried with ground glass and it works well from 3m onwards.

Roland.

 

[payasam]

... but not at closer distances.