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Blown highlights? #1
Phil C's picture
by Phil C
October 10, 2012 - 10:41am

Hi, I am trying to work out what has happened when I loaded a photo recently. I think it relates to blown highlights. Have tried searching the internet but have not seen any examples of this.

The photo at this link - http://flickr.com/gp/phil_jen/d5LX3T - shows purple and white in an area that is bright on the original file on the camera. The original does not show this, so am thinking it is something that Aperture did with the processing on import.

Taken with a Panasonic GH2 and shot in RAW.

Any comments on what has happened and how to remove it would be appreciated.

Cheers
Phil

PhilC

David  Moore's picture
by David Moore
October 11, 2012 - 12:17am

Hi Phil
Looks like a purple flood light from the Party. You will not get the same image on the back of the camera as you will on the computer. But shooting raw you will get more flexibility. Did you try the Raw fine Tuning Brick? tone down the Boost and Hue sliders.
Lots of things to try like recovery and Highlight slider. It basically looks over exposed for that one flood light. Good luck

davidbmoore@mac.com
Twitter= @davidbmoore
Scottsdale AZ

Phil C's picture
by Phil C
October 11, 2012 - 1:27pm

Thanks David, yes, purple flood light is likely.

I tried moving a variety of sliders to see if anything helped, but will look specifically at your suggestions. I am totally new to using Aperture for more than file management.

To help my learning, if the view on the back of the camera looks ok, no purple fringing, does that mean the effect is caused by the RAW processing of Aperture? If I load the original RAW file into a different application it might not happen?

Cheers
Phil

PhilC

David  Moore's picture
by David Moore
October 11, 2012 - 11:48pm

Your GH2 looks like Aperture 3 has the decoder for it. Let me ask a dumb question… your have Ap 3 and you are all up to date with updates that your machine can take? How did you get the image to post to flicker? Did you try lighten the image to get the shadows right? Are you watching the histogram in AP? That will tell you where the information is falling. Watch Josephs video on the histogram… I never adjust an image with out looking there. For this image Im guessing the following. Return all sliders to normal….adjust the Shadow slider first and then the highlight slider and pay attention to the histogram. Shadows will effect shadows and Highlights will effect highlights. cheers David

davidbmoore@mac.com
Twitter= @davidbmoore
Scottsdale AZ

David  Moore's picture
by David Moore
October 12, 2012 - 12:22am

Phil I took your image off flicker and looked at it again. Weird! Would luv to see the original. I sent a dropbox invite to you if you want to send it. Did you do a lot of color correcting on the image before it went to Flicker??
dbm

davidbmoore@mac.com
Twitter= @davidbmoore
Scottsdale AZ

Phil C's picture
by Phil C
October 12, 2012 - 12:43am

Thanks for that, I will drop the file in when I get home tonight, and will play around with your suggestions. Did not get a chance to investigate last night.

I exported the file, and then loaded it to Flickr. I cannot remember if I had adjustments on the file before exporting it.
Cheers
Phil

PhilC

PhotoJoseph's picture
by PhotoJoseph
October 12, 2012 - 3:06am

Folks,

I’ve seen this issue before in an almost identical situation — very bright and unusual colored lights are being rendered very, very poorly by Aperture.

I hate to say it, but try opening the RAW image in Photoshop if you have it, or some other software. I know this is an issue that’s been raised before. If you would like to share the RAW with me, I can pass it along to Apple in the event they need more examples like this to work from.

@PhotoJoseph
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David  Moore's picture
by David Moore
October 13, 2012 - 12:48am

Once again Joseph is right. Damit Your Raw opened just fine in PS 5 camera raw. After importing into Aperture It appears good till the preview is built. You definitely have to send this to aperture. Thanks for sharing.
david

davidbmoore@mac.com
Twitter= @davidbmoore
Scottsdale AZ

Phil C's picture
by Phil C
October 13, 2012 - 1:39am

Thanks for checking that out David.

Joseph, I will use Dropbox to send you the file to forward to Apple.
Cheers
Phil

PhilC

PhotoJoseph's picture
by PhotoJoseph
October 13, 2012 - 1:41am

Phil,

Post it somewhere where I can get to it and I’ll pass it along.

@PhotoJoseph
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