minnesotti wrote:
> I would like to buy a compact or pocketable P&S camera. It should have
> a high sensitivity, so that I could shoot the night scenes in the city
> with excellent quality. I heard that FujiFilm FinePix F10/F11/F30 has a
> good CCD sensor allowing to shoot in dark... however, I never held it
> in my hands and I read the reviews that its sensitivity is not really
> that high, and the image has a "watercolor" quality in it. Besides, I
> do not think that its lens is sharp enough as say Panasonic FZ30 or
> LX1. I presume that the camera with the desired qualities should have
> larger pixels, and thus a larger sensor... which means the lens should
> be big, too... and I want a pocketable camera.
>
> If there is no such camera, then I want a camera with a high dynamic
> range. I want to shoot both bright sun-lit sceneces and to resolve
> details in shadows, in the same picture. Again... I am not aware of
> such a camera. Can you advise any ? Thanks.
>
> ..
>
Dynamic range is controlled by how many photons a pixel
can collect and what the read noise is from that pixel.
See:
Procedures for Evaluating Digital Camera
Sensor Noise, Dynamic Range, and Full Well Capacities;
Canon 1D Mark II Analysis
http://www.clarkvision.com/imagedetail/evaluation-1d2
The Nikon D50 is here:
http://www.clarkvision.com/imagedeta...tion-nikon-d50
To get high dynamic range, you need large pixels, which P&S
cameras generally do not have (typically 3 to 6 times less
photons than DSLRs). See tables 1, 2 and 3 at:
http://www.clarkvision.com/imagedeta...ignal.to.noise
for some data on other cameras. Unfortunately, there is
not yet much data on P&S cameras compared to DSLRs.
Roger