On Tue, Jul 21, 2009 at 07:29:29AM -0400, paul stenquist wrote:
> Why would you add +.7 exposure comp on the K100 but not  on the K20?  
> More exposure will reduce the noise on both cameras. Again, it's  
> apples to oranges.
Using the histograms to correct my exposures, as I did, these are what
I got. You will note that in all of them, when I did "auto tone" in
lightroom, it did not adjust the exposure, though the recovery values
changed a bit.

So, the K20 does seem to be shooting about 2/3 stop faster than the
K100 for about the same level of noise, so my K20 gains me maybe 2/3
stop over the K100 in performance.

K100           LR exposure correction

 200  13 sec   0
 400   8       0
 800   4       0
1600   1.6     0
3200   0.8     0

K20

 200  10 sec    0
 400   5        0
 800   2        0
1600   1.3      0
3200   0.6      0


-- 
The first step is learning to take great photos, 
the second step is learning to throw away ones that are merely good.
Larry Colen             [email protected]            http://www.red4est.com/lrc


--
PDML Pentax-Discuss Mail List
[email protected]
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link directly above and follow 
the directions.

Reply via email to