K20D Viewfinder question...

Ok, I'm going to sound a complete newbie...but...

What exactly does it mean when the K20D is described as having "0.95 times magnification and 95% accuracy".

I've also heard it as 95% field of view coverage at 95% magnification.

I would interpret that as only being able to see 95% of what the camera can actually take through the viewfinder - but how does the 95% magnification part of this come into play? Does the viewfinder "zoom out" by 5% from what it sees through the lens? I suppose i'm just curious as to why the 95% magnification exists?

As I said, this is a bit of a beginners question, but just trying to understand the camera more.

Only 95% of what the camera records, whick is OKish. If you really want the full whack then its Leica or film Nikons - and I've rever understood why

Fair enough - thanks Gartmore - that's what I figured; just 95% of what the camera records.

It's because a 100% viewfinder has to be larger and also very very acceurate. This all adds to cost for what may see as very little practical benefit.

Thanks John, that's help put some logic in there for me.

On a similar subject, I have considered getting the Magnifying Eyecup for the K20D - reports suggest it's getting on for full frame quality to the viewfinder, and now I can completely understand why that is going from what you've said John. It seems obvious now!!!