Hey gang, I've been really frustrated for the past two days trying to figure out why my RAW shots are so underexposed in Aperture. The camera LCD looks just fine, but when I import the RAW images, you can see the previews rendering perfectly for 1/2 a second and then *poof* it knocks down about a stop of light. I have to manually adjust the exposure back up a stop or more to get the proper lighting, which sometimes introduces noise etc.
Just for kicks, I opened the same RAW files in Lightroom, Photoshop CS4, and Canon Digital Photo Professional. The images were the perfect exposure!! Attached is a comparison, with Aperture in the middle.
After digging around Apple's support boards, I learned that Aperture ignores the Highlight Tone Priority setting on Canon cameras. Instead, it uses the embedded underexposed part of the highlight tone priority RAW image and doesn't fill out the rest.
For JPG shooters, this could be useful, as the image does come out the right way, but for RAW shooters -- stay as far away from HTP as you can if you use Aperture as a photo management/editing tool.
It would be really swell if Aperture 2.5 or Aperture 3 fixed this...
Just for kicks, I opened the same RAW files in Lightroom, Photoshop CS4, and Canon Digital Photo Professional. The images were the perfect exposure!! Attached is a comparison, with Aperture in the middle.
After digging around Apple's support boards, I learned that Aperture ignores the Highlight Tone Priority setting on Canon cameras. Instead, it uses the embedded underexposed part of the highlight tone priority RAW image and doesn't fill out the rest.
For JPG shooters, this could be useful, as the image does come out the right way, but for RAW shooters -- stay as far away from HTP as you can if you use Aperture as a photo management/editing tool.
It would be really swell if Aperture 2.5 or Aperture 3 fixed this...
