Bob Andersson wrote:
I'm sure you are right about the embargo as I've previously found that in general Adobe's converters don't work on camera models released after Adobe's software releases. The purist might argue that it's so Adobe can be sure to wring the best out of the sensor (my very out of date copy of IrfanView had no trouble at all decoding the 650D/T4i file so the format hasn't changed). A cynic might argue that Adobe finds it convenient to try to force users to upgrade their copies of Adobe software.
Your post inspired me to check whether LR 3.6 (the final version of LR 3) would directly import a T4i .cr2.
Nope! But my December 2007 copy of IrfanView also opened that .cr2 with no problem.
It looks like LR has been coded to refuse to import RAW files (other than DNGs) that aren't from cameras on its internal list.
Looks like a nefarious scheme to promote their free DNG Converter!
I guess they figure that only a few folks will know about its existence and will put up with batch converting all their shots, and everyone else will grumble and upgrade.
I've been batch-processing my XTi/400D files for a while - even though LR 3 and CS4 know its format - because I discovered that it swaps the Max and Min focus distances in its EXIF data, making Canon's DPP and Adobe's software unable to do geometry correction.
I found EXIFtool, a free power tool that is programmable with batch files, and worked with its author to come up with a batch file to swap those values to where they should be. (Takes about one second per file on my elderly Dell.)
After that batch processing, Adobe's software is able to do geometry correction - but DPP still doesn't read those values. (Put the corrected files back onto the memory card and the camera can't understand them at all.)
PPS I probably should call my XTi a "400Plus," which is the name adopted by the folks doing ROM extensions for the 400D in a CHDK-descended open-source project. They've turned it into a mini-40D by adding spot-metering and a top ISO of 3000, plus lots of other gimmicks, like interval shooting and the ability to re-purpose the sensor near the eyecup that turns off the display when you raise the camera to your eye, letting you use it as a hands-free shutter-release: just wave your hand behind the camera!
But I'll hold off on implementing Magic Lantern - the sibling project for newer EOS models - until my T4i (there - I've said it: I'm gonna get one!) is beyond its warranty period.