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[OM] Re: Digicams and High ISO

Subject: [OM] Re: Digicams and High ISO
From: Winsor Crosby <wincros@xxxxxxxxxxx>
Date: Sun, 20 May 2007 18:41:22 -0700
A thoughtful analysis as usual, Moose. A few days ago Mike Johnston  
proposed a design for a perfect pocket digicam. It was OK as far as  
it went, but while he is an entertaining writer no one will accuse  
him of being rigorous. Feature 2 and Feature 6 are two aspects of the  
same issue.   It is quoted here:


Feature 1: True shirt-pocket size
Reason: Many serious photogs who use p/s cameras do so because  
they're portable and painless to pack.

Feature 2: No more than 8 megapixels—6 would be better
Reason: Where too-tiny sensors are concerned, more pixels mean lower  
image quality, past a certain point.

Feature 3: RAW capability
Reason: Using a RAW converter is the best way to extract more image  
quality out of any given sensor, and eliminates the worry and fuss of  
setting white balance while shooting.

Feature 4: Waterproof, shockproof, and freeze-proof
Reason: A take-anywhere camera should be able to be taken anywhere.

Feature 5: A zoom lens of no more than 3X, 28–85mm equivalent, ƒ/2.8  
or faster on the short end.
Reason: Greater magnification zooms compromise on image quality, and  
are slower. Most photographers can do anything that needs doing with  
these focal lengths.

Feature 6: Reasonably noise-free to ISO 400.
Reason: I know, it's asking a lot of a small sensor. Still, Fuji  
manages.

Feature 7: An articulated LCD
Reason: Many tinycam users use the LCD as a viewfinder.

Feature 8: An optical viewfinder
Reason: Many tinycam users prefer not to use the LCD as a viewfinder.

Feature 9: Anti-Shake/Image Stabilization/Whatever Yawanna Callit
Reason: It's a very useful feature, especially in low light and with  
tiny cameras that are hard to hold. (I'm still impressed with this  
technology.)

Feature 10: Must be fast, responsive, and very quiet, with excellent  
shutter lag and shutter release feel.
Reason: Because this is a criterion that should be met by any camera  
that is meant to take pictures with.

I would add that it must have some way to check the exposure and  
control it, especially since many of these small cameras have a very  
limited dynamic range. Ergonomics and ease of use are a definite  
factor as well. Both are more important than an articulated LCD, nice  
as it is. I think his list of desired attributes explains his earlier  
article condemning this type of camera. While the F30 has an  
outstanding image I find it to be a distinctly limited camera  
especially in light of this list while more capable cameras, as  
usable cameras, are saddled with about two useful low ISOs, base and  
the next one up.

I wonder why Fuji has not turned their sensor into a product. Seems  
like they could take a big bite out of the Sony, Kodak and Panasonic  
sensor sales. It would give Fuji for cash for R&D as well as profit  
and certainly it would stimulate sensor development by the competition.


Winsor
Long Beach, California, USA




On May 20, 2007, at 3:23 PM, Moose wrote:

> My personal conclusion for the moment is that the F30 is a better
> overall bet than any of the 3-4x competition for both IQ and  
> ergonomics
> and the ability to minimize subject movement blur. With my desire for
> longer reach, I'm trying out a Canyon A710 IS. I've been too busy/lazy
> to do any direct comparison testing, but I've seen enough to feel the
> question is a serious one worth further consideration.


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