Damien Symonds

Yeah, I can't see any value in it.

The first one is completely irrelevant, because you must work in changing light. The second one ... well, that functionality is in Photoshop already, so I'm not sure what the benefit would be. The third on ... how many screens do you have?

Well yes, with a heck of a lot of patience, you could mask it out to white. Then maybe put a pale fake sky in. A hard job, but a great challenge.

What do they say are the differences?

Just to check - you're aware that a screen can be IPS with LED backlight, right? They're not mutually exclusive.

Gee, then they should be damn near identical (the jpeg and the psd) in the loupe.

What quality level was your jpeg save set to?

You can only judge sharpness at 100%. View both files with the Loupe in Bridge. You can see me using the Loupe in this video. Never use, or trust, Windows viewer for anything. Only ever use Bridge.

I get the same error message I don't know if there's anything you can do, sorry. I've spent some time googling "dng file repair", as I'm sure you've done yourself, but there don't seem to be any good solutions leaping out at me.

Ok, could you send me one of the recovered 20MB ones?

hmmm... 18 was a bit too high, I think. While it looks great in most areas, it looks a bit heavy in some brighter areas.

There was quite a lot of guesswork involved, to be honest. A lot of fiddling with sliders.

Would this be ok? Download the PSD

*shrugs* Try both and see.

With respect, that's impossible. All DNG files from one camera should be a very similar size. Please check again. It sounds like you were looking at jpeg files.

And? Have you compared it to other DNG files from your camera? Is 20MB correct? By the way, you're in Adobe RGB. This is disastrous. Fix it right away. Click on the blue link at the bottom of the ACR window, and change from Adobe RGB to sRGB.

This is your chance, my friend. Embrace it. Change your life. http://www.damiensymonds.net/bridge-30-day-challenge

Great.

Well ... that's a different photo. How many of these problem photos do you have?

No, it's White LED.

Hell yes it matters. You can't use that, because you can't replicate it next month.

Yeah, that'll work.

Ok. What opacity brush did you use?

Ok, could you send me those files? One from the PC and one from the Mac?

Is this the one you were following? http://www.damiensymonds.net/2013/02/using-photo-filter-layer-to-fix-casts.htm