Category Archives: Lightroom

DNG Compatibility Settings

Adobe Labs has updated DNG conversion options in Lightroom, ACR, and the DNG Converter that offer some (possibly confusing) new options. You now have a preference pulldown for compatibility settings. What’s up with that? The short answer is that new functionality has been added to the DNG specification (and to the latest version of Camera Raw) that can do new tricks to the pictures.

For instance, there is now a way for Adobe (and others) to remove lens distortion from the image.  Since this is a new function, it’s necessary to make a new version of the spec that details how to save and apply the instructions. One thing this enables is for cameras that don’t work well with the current DNG spec to now be supported. Check out Tom Hogarty’s blog to see the new camera support.

Some new DNGs that make use of these new tools won’t be fully compatible with all DNG applications. You can save them so that they will work with the older software, but they will lose some of their rawness. How the heck does one decide which to use?

Answer after the jump. Continue reading DNG Compatibility Settings

Speed up Lightroom on your Intel Mac

Here’s a quick tip to speed up Lightroom on an intel Mac. Select the program in the applications folder (single click), and then go to File>Get Info. In the General Panel, there is a checkbox to run the program in 32 bit mode. This is the default setting.  Uncheck this box, and Lightroom will now run in 64 bit mode, speeding things up.

This is not available for  G5 or earlier computers, nor for OS prior to 10.5.

On PC, you need to be running a 64 bit OS to install the 64 bit application.