iND and Daniel,


We have an excellent post going here. There is alot ofvery interest info to glean here.


It's funny as crap. I thought for all these years that if you changed the exposure increments to 1/2 it would also change the ISO increments to 1/2.... Silly Me.


Quote Originally Posted by Daniel Browning
By the way, Chuck, you might be interested to see the chart of dynamic range over ISO settings, made by John Sheehy

Yeah, Monkey Face Guy.... His Avatar screams "TAKE ME SERIOUSLY" I like his graph...it's nice, but I much more the enjoyed theargument/debate he was having with Gabor. Gabor is very deep like you Daniel. I see over on LL where you guys hit this topic in Jan. Lot's of good stuff there. Thanks.


When photographing, my faculties don't quite reach that deep. I just know what I know from trial and error.


I'm not seeing the headroom in post that Sheehy shows in his 5D MkII graph for the 40D or 5D.


For right nowshooting for reduced noise is more important to me than knowing what my dynamic range headroom is. I find in practice that the 40D when shooting with the ETTR tweenies can post an extra 2ev in highlights whereas the 5D consistently gives an extra1ev across all ISOs. (except 3200). Apparently the 50D and 5D MkIIfollow the 30D and 40D trend.


The 40D tweenies are the same as the 30D so if the new 5D MII is configured the same way 160,320,640 etc. would be the tweenies I'd be shooting with.


On the 5D all the results and opinions I have seen say turn the tweenies off and don't use them. That is correct. I don't.


Question: Has anyone done a dark noise histogram plot of the 5D MkII like the one done here?: Canon EOS 5D Dark Noise Tests


I'm still working with the white balance for RAW "green" histograms and will post some question/results/conclusions when more time is available.


Awesome Guys!