As you may remember, I've been lurking for, oh, fifteen years and have
thoroughly enjoyed and benefitted from most every discussion.
Now, I do have a question for you experts. Has to do with 4/3 and
megapixels.
Background - I do mostly 20 x 24 prints for gallery hanging and sales, and
for the last 5 years or so have used Oly 4/3 with Zuiko's for most. E-5
and EPL-3 these days. As you might imagine, highly satisfied.
My question: I understood the original rationale for 4/3 was the "8 x 10"
print form-factor. I have understood "full frame" to be useful for the 2/3
print ratios, e.g., 20x30. My question - if one is targeting the 4/3 as
the outcome print format, isn't the "effective" megapixel more than the
same number of pixels in "full frame" because one loses the extra width?
That is, if I use 20x24 compared to 20x30 prints, don't I lose the benefit
of the "extra" 6x20 pixels, or about 1/4 (24/6) of them . meaning that 12
MP 4/3 is the equivalent of 16 PM full-frame? So when Chuck says the OM-D
needs to have more pixels . wouldn't a full-frame equivalent need to be 21MP
or more to be "better" ?
Or . is there something else going on here?
Thanks.
Bob Benson
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