RAW format tends to under

[sumball]

Got my new PC recently and decided to shoot in RAW using my 300D. However, find the images recorded are way underexposed by half to one stop compare to shooting in JPEG format.

Please may I check if this is alright? Or do I need to do any adjustments and compensation or something becasue I just shoot the same way I shoot JPEG.

All inputs are welcome!

Thanks & regards.

[Belle&Sebastain]

if your camera can shoot both raw and jpeg together, why not try a few shots and prove your theroy right?

Its a new computer right could be the monitor's output is different form your old one.

[Royce]

How are you viewing your RAW files? Are you talking about RAW files opened on the PC, or viewing on the cam? Remember RAW files are being processed so that you can view them on the PC, so most likely it's the settings of what ever software you are using on the PC to process the RAW file.

[sumball]

I upgraded the chips not the monitor, so am still using the same monitor.

I can't shoot with RAW+JPEG though mine is a hacked version of 300D.

From the LCD screen, it seems alright but when view from PC (using PS CS), it is way under by half or one stop. Suprisingly for those shots which I thought it will be overexposed (viewing from LCD) turn out just nice from the PC.

Yes, I try viewing from diff PC and I get the same result.

Does anybody here facing the same problem as mine?

[Royce]

Try using diff software (perhaps CaptureOne), or adjust the exposure settings in the CS camera raw plugin.

[sumball]

Care to explain further. Still dont know how plug-ins work...

[freelancer]

Can you post sample images and the histograms. Should be easy to confirm things.

[loupgarou]

when you open a raw file in ps, the plug in should immediately pop up and you can adjust all kinds of settings, including exposure, so just moev exposure + 0.5 ev.

look for russell brown's photoshop raw batch conversion script.

[sriram]

How are you post processing raw images? It sounds like a problem with that process. Raw data from the CCD is going to be really dark unless post processed correctly.

[sumball]

Originally Posted by loupgarou when you open a raw file in ps, the plug in should immediately pop up and you can adjust all kinds of settings, including exposure, so just moev exposure + 0.5 ev.

Ok, thats where i always adjust the exposure to +0.5 ev (hehehe it is the plug-in ya )

Quote: look for russell brown's photoshop raw batch conversion script.

Well, where can I get this from?

Thanks so much!

[sumball]

Originally Posted by sriram Raw data from the CCD is going to be really dark unless post processed correctly.

Although I well-exposed my shots? means I stil got to + the ev by certain stop (s)?

Well, after the process of adjustments, the shots are alright but my concern is gonna be "is this normal?" Seems like it is then.

Sorry for the stupid questions asked.

Thanks again.

[Belle&Sebastain]

Originally Posted by sumball Although I well-exposed my shots? means I stil got to + the ev by certain stop (s)? Thanks again.

not sure which metering mode you use, for ( ) mode i -1/3 for well lit places and +2/3 for poor lit places, for (.) i adjust +1/3 for 10D and +1 for 1D. for spot i use +1/3.

[sumball]

Originally Posted by Belle&Sebastain not sure which metering mode you use, for ( ) mode i -1/3 for well lit places and +2/3 for poor lit places, for (.) i adjust +1/3 for 10D and +1 for 1D. for spot i use +1/3.

I think I was using centreweighted and evaluative most of the time in Av mode.

[knoxknocks]

think some photos with their EXIF would help?

[sriram]

If you want to see how a raw CCD image looks with minimal post processing, just do a linear conversion to a TIFF or JPEG, and look at the difference between that and the normally converted file. There's a lot of exposure correction going on at the post processing stage for raw files.

Linear conversion is when you take the raw CCD data and just apply white balance correction. The image is going to have a gamma of 1.0, so you can see how different it looks.

[+evenstar]

Originally Posted by sumball I upgraded the chips not the monitor, so am still using the same monitor. I can't shoot with RAW+JPEG though mine is a hacked version of 300D. From the LCD screen, it seems alright but when view from PC (using PS CS), it is way under by half or one stop. Suprisingly for those shots which I thought it will be overexposed (viewing from LCD) turn out just nice from the PC. Yes, I try viewing from diff PC and I get the same result. Does anybody here facing the same problem as mine?

Try to turn down the LCD brightness of your 300D?
I've got the same case as yours but once I turned down the LCD brightness to 2bars, exposure on LCD screen became same as what I view on my laptop..