measekite wrote:
> But notwithstanding brands or models or even camera type it is a known
> fact that larger sensors with the same number of pixels can produce better
> images; especially when cropped and enlarged.
That's one of the key issues that's important for buyers to understand.
Certainly there are occasions when you can get by just fine with a P&S,
i.e. good lighting, stationary subjects, somewhere in the sweet spot of
a very wide focal range lens, and when you don't need to do cropping and
enlarging (which highlights the problems with high-noise sensors, lack
of dynamic range, and lens problems). This is something I patiently
explain to every colleague, relative, and friend that asks me for advice
on which camera to purchase.
Using a table to show them what they can expect from each type of camera
is often helpful, i.e.:
Print Size versus Megapixels versus Camera Type
Mp Type 4x6 5x7 8x10 13x18 16x20 24x36
-- ---- ----- ---- ---- ---- ---- ----
6 P&S Good Fair Poor Poor Poor Poor
6 D-SLR Good Good Good Good Fair Poor
8 P&S Good Good Fair Poor Poor Poor
8 D-SLR Good Good Good Good Good Fair
10 P&S Good Good Good Fair Poor Poor
10 D-SLR Good Good Good Good Good Good
12 P&S Good Good Good Good Fair Poor
12 D-SLR Good Good Good Good Good Good
14 D-SLR Good Good Good Good Good Good
16 D-SLR Good Good Good Good Good Good
20 D-SLR Good Good Good Good Good Good
It's sometimes hard to explain to non-technical types the reasons why
they need to look at more than just focal length and megapixels, and why
they may want to consider spending more on a D-SLR. Explaining about why
the AF lag on the P&S is so bad is often easier than explaining about
sensor noise and dynamic range.
Explaining something like CHDK to a novice is like talking a foreign
language. Besides what they have to do to load it on the camera
(including putting it on every memory card they have), it's a challenge
to explain to them why they might want to use it. I really need to go
back and update some of the documentation that I wrote on CHDK in a less
technical way.
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