02-01-2013, 09:25 AM
[quote name='Brightcolours' timestamp='1359664118' post='21677']
The D800 has a sensor that has low read noise. That means that especially at base ISO, the noise floor is very low. Same with the 16mp, 24m APS-C sensors from Sony and the 24mp FF sensor from Sony.
The higher the ISO setting, the more that low read noise advantage disappears.
If you take normal photos with a normal tonal curve, you will not notice it. Only when you pull shadows several stops (never get the why for that) or lower contrast (flatten the tonal curve) by a big amount, you will get to see the extra dynamic range. Some people like it because it allows them to kinda rescue badly messed up exposures.
By ISO 800 or so the advantage is gone, and with high ISO's other cameras can give better results even.
To me, good enough DR is good enough DR. My camera does not have good enough DR from ISO 800 and up btw <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/wink.gif' class='bbc_emoticon' alt='
' />/>/>
The DR talk is mainly a thing for specs liking forum lurkers, it is a less big issue than some think it is.
To put things into perspective.... Colour positive (slide) film has a dr of about 5 to 6 stops. Colour negative film has a dr of upto about 10 stops.
BW film usually has also quite low DR, but a few types go up all the way to 14 stops (if you know how to exposure them, and know how to develop them to get such a high DR out of them). The result is then a totally flat, awful to look at image. It then takes a lot of skill and experience to compress that super high DR into some sort of pleasant image. Photo prints have a DR of about 6 to 8 stops.
If you normally take photos, the 5D mk II, 5D mk III, 6d, D600, D800 all make very similar images with similar DR, because they have a very similar tonal curve. The high DR is only found in the unprocessed RAW data.
[/quote]
Hi Brightcolours,
The Pentax K5 has the Sony 16Mb sensor and the detail that can be recovered in the shadows is amazing! The K20 started that trend even though it had a Samsung sensor,I wonder if the algorithms of modern cameras play a large role in this!
Dave's clichés
The D800 has a sensor that has low read noise. That means that especially at base ISO, the noise floor is very low. Same with the 16mp, 24m APS-C sensors from Sony and the 24mp FF sensor from Sony.
The higher the ISO setting, the more that low read noise advantage disappears.
If you take normal photos with a normal tonal curve, you will not notice it. Only when you pull shadows several stops (never get the why for that) or lower contrast (flatten the tonal curve) by a big amount, you will get to see the extra dynamic range. Some people like it because it allows them to kinda rescue badly messed up exposures.
By ISO 800 or so the advantage is gone, and with high ISO's other cameras can give better results even.
To me, good enough DR is good enough DR. My camera does not have good enough DR from ISO 800 and up btw <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/wink.gif' class='bbc_emoticon' alt='
' />/>/>The DR talk is mainly a thing for specs liking forum lurkers, it is a less big issue than some think it is.
To put things into perspective.... Colour positive (slide) film has a dr of about 5 to 6 stops. Colour negative film has a dr of upto about 10 stops.
BW film usually has also quite low DR, but a few types go up all the way to 14 stops (if you know how to exposure them, and know how to develop them to get such a high DR out of them). The result is then a totally flat, awful to look at image. It then takes a lot of skill and experience to compress that super high DR into some sort of pleasant image. Photo prints have a DR of about 6 to 8 stops.
If you normally take photos, the 5D mk II, 5D mk III, 6d, D600, D800 all make very similar images with similar DR, because they have a very similar tonal curve. The high DR is only found in the unprocessed RAW data.
[/quote]
Hi Brightcolours,
The Pentax K5 has the Sony 16Mb sensor and the detail that can be recovered in the shadows is amazing! The K20 started that trend even though it had a Samsung sensor,I wonder if the algorithms of modern cameras play a large role in this!
Dave's clichés