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    Forum: General Discussion Apr 5, 2009, 8:39 AM
    Replies: 22
    Views: 3,271
    Posted By TCav
    Alan T wrote: Since the discussion has...

    Alan T wrote:
    Since the discussion has broadened into the area of lenses, let's also remember that lenses for P&S digicams are simpler and cheaper to design and manufacture, and, coorespondingly,...
    Forum: General Discussion Apr 4, 2009, 9:04 AM
    Replies: 22
    Views: 3,271
    Posted By TCav
    AndyfromVA wrote: I'm saying that I agree with...

    AndyfromVA wrote:
    I'm saying that I agree with you. Higher pixel densities result in more noise.

    But, at higher resolutions,the individual pixels contribute less to the final image. The noisy...
    Forum: General Discussion Apr 3, 2009, 8:02 PM
    Replies: 22
    Views: 3,271
    Posted By TCav
    peripatetic wrote: I'm not disagreeing with...

    peripatetic wrote:
    I'm not disagreeing with DXO, and they're not disagreeing with me.

    A lot of things have changed since the mainstream dLSR had a 6MP image sensor. If we still made APS-C 6MP...
    Forum: General Discussion Apr 3, 2009, 4:12 PM
    Replies: 22
    Views: 3,271
    Posted By TCav
    Noise happens at the pixel level. ...

    Noise happens at the pixel level.

    Downsampling mutes noise (no pun intended.) The more downsampling, the less objectionable the noise. A 6MP image displayed on a 1280x1024 screen will show more...
    Forum: General Discussion Apr 3, 2009, 2:55 AM
    Replies: 22
    Views: 3,271
    Posted By TCav
    It seems only Canon has an effective way of...

    It seems only Canon has an effective way of dealing with noise: stop it before it starts. That requires technology at the photoreceptor level. While some methods are certainly better than others, any...
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