Re: viewfinder area

[graywolf]

Well, 90% shows approximately what is visible in a mounted slide, and 
approximately what the standard negative mask on a minilab prints. So, there is 
a real reason to use less than 100% for most people. The only ones a 100% 
viewfinder would accommodate are those who print their negative with a filed out 
negative holder. The rest of us would often wind up cutting off arms, legs, an 
heads. It is another one of those specs that sound good, if you don't fully 
understand what is going on.

--
Dan wrote:
Quoting "keller.schaefer" <[EMAIL PROTECTED]>:

I have always argued the *practicality* of any 100% viewfinder. A 95% finder
already shows *almost all* of the image: 95% of 24x36 is 23.4x35.1
mm (for APS-C it is 23.5x15.7 vs. 22.9x15.3). No matter what application you
are
thinking of for either a negative or a slide, you will have a hard time
actually *using* more than 95% of it. A slide frame will cut away about 7%
and
any lab (including home printing) will probably cut away more. In that sense
it
is *correct* to show 95% as it gives you a better indication of what you will
eventually get than 100%.

Most people won't be wanting negatives or slides though.  And home printing
should still get all of the frame: I don't think any inkjets crop the picture. 
For on screen display too you will not lose anything so to me a non-100%
viewfinder on DSLRs does not make sense.


This is probably a silly question which has been discussed to bits,
but
I
was wondering if someone could give me the quick answer as to why it
was
too
hard to put a 100% viewfinder in the ist D (as opposed to the
90something
percent..)


--
graywolf
http://graywolfphoto.com/graywolf.html