CyberDyneSystems wrote in post #5257979
Do you mean for ACR conversion?
I don't use PSCS ACR to process RAW files,.
And I've not noticed this limitation in Photoshop?
DPP, Bibble, Lightroom and Breezebrowser, the four RAW programs I have that read MKIII files, all seem to work very well with the MarkIII's RAW files, all can handle 16 bit out put from 14 bit RAW files so I'm not sure where this limitation you are imposing on "photoshop" would come from?
Anyway, I may be the odd man out, but resolution aside, the 14 bit color and whatever other advancements that were made with the Mark III's CMOS and processor, IMHO show a very noticeable improvement in color and overall image quality over the previous generations of DSLR including the 5D and MkIIn, and even the 1Ds MarkII
Though the 1Ds' 16MP resolution makes the overall advantage still for the 1Ds, I do not feel this is the case with the 5D's small 2MP resolution lead. Here the benefits of the MarkIII's advances outstrip the 5D's resolution ( IMHO )
Then there is the FF vs 1.3x crop, and total res vs. pixel density is a matter of what one shoots, no definite advantage for everyone;
Some will need/want the 5D's ff and slightly higher MP over the advances in the MarkIII images..
Some will need/want the MarkIII's higher pixel density for telephoto detail along with the 14 bit etc..
Still very different cameras, with different appeals for different applications. For the "all in one user" it comes down to what is more important to them.
If I could afford to hold on to all of the above, and carry then all around, I would keep a 5D as well.
I can't though, so for me the one camera I find that does it all for me, with the emphasis on what I shoot the most, is the MkIII.