Shooting Blunder

gpgold

Well, I was tired, if that's an excuse. I shot some pics of my friend's garden forgetting that W/B was set for incandesant from the night before. I have been able to get a decent result out of PS, but I wondered if there was a formula for this kind of fix?

regards,

Gary

DJ-S1

Did you shoot RAW? You would be able to change the white balance when you convert it if you did.

gpgold

DJ-S1 wrote:

Did you shoot RAW? You would be able to change the white balance when you convert it if you did.

No, I have an f828 which has RAW, but I don't generally use that mode - buffer time is too long.

Gary

DJ-S1

I was reluctant to shoot raw when I got my Rebel too, not for the buffer time but for the post-processing time. But I'm a believer now. I still make too many beginner mistakes and I can use all of the safety margin I can get.

Shay Stephens

Shooting RAW on the 828 has a huge performance penalty, it's just not practical when doing any kind of action work.

The only real option is to apply digital cooling filters or adjust the levels/curves to get the best WB you can. It won't be perfect, but you can do better than what you likely have. If nothing else, this will get your WB paranoia level to a sufficiently high level that this won't happen again

Post a sample and I will see if I can get a formula that might work on the other photos for you.

gpgold

DJ-S1 wrote:

I was reluctant to shoot raw when I got my Rebel too, not for the buffer time but for the post-processing time. But I'm a believer now. I still make too many beginner mistakes and I can use all of the safety margin I can get.

This is a great suggestions as I move into the full manual mode. Certainly for the "important" shots.

regards,

Gary

gpgold

Shay Stephens wrote:

Shooting RAW on the 828 has a huge performance penalty, it's just not practical when doing any kind of action work.

The only real option is to apply digital cooling filters or adjust the levels/curves to get the best WB you can. It won't be perfect, but you can do better than what you likely have. If nothing else, this will get your WB paranoia level to a sufficiently high level that this won't happen again

Post a sample and I will see if I can get a formula that might work on the other photos for you.

Shay,

Thanks very much. I will post one of the shots tonight. Funny, I was thinking of you yesterday (while running PF remover) most of these shots were through the trees and your magic action did its thing. Best buy I made, besides the camera.

regards,

Gary

gpgold

Shay Stephens wrote:

Shooting RAW on the 828 has a huge performance penalty, it's just not practical when doing any kind of action work.

The only real option is to apply digital cooling filters or adjust the levels/curves to get the best WB you can. It won't be perfect, but you can do better than what you likely have. If nothing else, this will get your WB paranoia level to a sufficiently high level that this won't happen again

Post a sample and I will see if I can get a formula that might work on the other photos for you.

Shay,

Here are some examples. I would have gotten these up sooner, but work has been interfering with my life. Almost

thanks,

Gary,

ubergeek

A WB formula
It's hard to say exactly what the colors ought to look like without having been there, but try this as a "formula" for converting from incandescent white balance to daylight: set the gamma for the red channel to 1.5 and the blue channel to 0.66 (leave the green channel alone). You can do this with the "Levels" tool in Photoshop (choose Channel at the top of the dialog box; gamma is the center of the three values in Input Levels). Other products will certainly vary, but the settings should be there.

Here's the result of the above formula applied to your original images:







I think some further levels adjustment and perhaps tweaking color saturation might be in order, but would you say that's an improvement?

Cheers,
Jeremy

gpgold

ubergeek wrote:

It's hard to say exactly what the colors ought to look like without having been there, but try this as a "formula" for converting from incandescent white balance to daylight: set the gamma for the red channel to 1.5 and the blue channel to 0.66 (leave the green channel alone). You can do this with the "Levels" tool in Photoshop (choose Channel at the top of the dialog box; gamma is the center of the three values in Input Levels). Other products will certainly vary, but the settings should be there.

Here's the result of the above formula applied to your original images:







I think some further levels adjustment and perhaps tweaking color saturation might be in order, but would you say that's an improvement?

Cheers,
Jeremy

Thanks, this is great! I had some luck playing with them, but I didn't have a real starting "formula". I will be working on them tonight.

Gary

Shay Stephens

Looks good
Nice work!

ubergeek wrote:

It's hard to say exactly what the colors ought to look like without having been there, but try this as a "formula" for converting from incandescent white balance to daylight: set the gamma for the red channel to 1.5 and the blue channel to 0.66 (leave the green channel alone). You can do this with the "Levels" tool in Photoshop (choose Channel at the top of the dialog box; gamma is the center of the three values in Input Levels). Other products will certainly vary, but the settings should be there.