On Dec 18, 2010, at 10:35 PM, steve harley wrote:

> On 2010-12-18 14:11 , Kenton Brede wrote:
>> On Sat, Dec 18, 2010 at 2:27 PM, steve harley<[email protected]>  wrote:
>> 
>>> do you see the "pixelation" in the RAW? those rectangular blocks seem too
>>> uniform to represent data from the sensor, so something is creating them -
>>> denoising? i dunno
>> 
>> I don't see it in the RAW.  It's only when I save as JPEG.

How are you saving as a jpeg? There are degrees of jpeg compression that will 
result in different levels of quality. A best quality, level 11 or 12, jpeg 
saved in PhotoShop should yield a file that is indistinguishable from a tiff to 
the naked eye.
Paul


> 
> i'm sure it's an artifact of JPEG compression then; the shadows have such 
> little contrast that the "approximation" done by JPEG compression results in 
> the blockiness; you may want to look at your monitor settings if it's really 
> obvious to you -- it's extremely subtle for me unless i boost the brightness
> 
> as for a solution, perhaps increase the contrast in the shadows and/or drop 
> the black point so that the shadow has less "pure black in it"
> 
> -- 
> 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.


-- 
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