Unbiased noise test.

Started Feb 28, 2009 | Discussions thread
Iliah Borg Forum Pro • Posts: 25,749
You have a point here

I haven't checked again, but there's a good chance that IR used the
camera's ISO settings and matched them from camera to camera
regarding their exposure settings. If they did so, and the exposures
are noticably different, then it's the camera maker's fault.

What is the data we have for film? Sensinometric (characteristic) curves, including plots of density vs. camera stops with the placement of middle grey in respect to highlights and shadows; data on diffuse rms granularity; modulation transfer curves; spectral sensitivity curves. Such data is essential for photography, especially if the photosensitive material is not forgiving - but it is not provided with digital cameras. Lack of data makes exposure decisions very difficult, sometimes all but impossible. Same refers to the lack of information on the calibration constant of exposure metering system found in dSLRs.

However we expect from those who publish tests to be aware of the situation and take all the above into account.

-- hide signature --
Post (hide subjects) Posted by
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow