Why is D90 betten then D300s at DxOMark Sensor test?

Started Jan 4, 2010 | Discussions thread
cluna
Senior MemberPosts: 1,403
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Re: Why is D90 betten then D300s at DxOMark Sensor test?
In reply to olyflyer, Jan 6, 2010

Not sure what you arguing for but....

olyflyer wrote:

It's impossible to use pure sensor data. Unprocessed sensor data is just photo transistor data, totally useless, and can not produce displayable images without processing. If you take an image and have it stored on a card it is processed in some way, even if it is a NEF raw image. A/D conversion is already a processing step, even if it is done in an A/D converter.

Incorrect, RAW....hence the name...in a loseless manor is unprocessed digital output from the sensor stored in a serialized manor. If you are testing the sensor, who cares what is happening before the sensors output, that is what you are testing in a "SENSOR", not cameras EXPEED/DIGIC/etc, output

the sensor is not a sampled device but rather a digital output device just like most A/D devices. Nikon doesnt sample every point, they are provided the info.....

take note of this http://www.beyondlogic.org/imaging/camera.htm

A digital camera is not just a sensor, if you exclude everything else and you do your own processing to be able to present an image you have a different digital camera. Totally pointless to exclude internal processing, if at all would be possible.

Not true, that is the whole idea behind shooting raw. As technology increases, so does the ability to extract more information from the sensors output in the future by taking advantage of the newer techniques on the desktop. Be it demosaicing , noise reduction, resampling or whatever...you arent limited to what the camera body itself is limited to at that point in time. Right??? or do you think shooting 6mpix fine quality JPEG is still the state of the art and sufficient? Things change

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