That is overexposure, not exposing to the right.
Technically, but the resultant effect is that you decide on purpose to expose at a higher level than what is optimal, and then try to bring it back in post.
While this is good on film, this technique *will* cause more blown out areas and more loss of details. What you are doing is hoping that the dynamic range contains enough leeway to help pull back the details from the areas close to or yes, blown out areas. That is the issue here... treating digital as if it responded the same way as film... which it is far from capable of doing.
Read any of the many articles on the technique
Sincerely, I have. For film it is a valid technique. For digital, its less effective simply becuase there is less dynamic range in a digital camera vs film (~11.5 for film vs some of the better cameras on the market like the D3 or D700's greatly less 9 stop range). So doing this is counter productive to an optimal and "properly exposed" shot in the digital world.
Now, let's set something in concrete here. BOTH methods are going to give you a printable final results... but which will give you the THEORETICAL best? The picture with the PROPERLY exposed settings vs the one where you push things in camera and then
hope you can bring it back in post process? Obviously, if it is done right
IN CAMERA... is right and less manipulation is needed. I'm not talking sharpness or bokeh or saturation/contrast, just straight exposure. It is *always* going to be easier and *less* chance of any losses in the overall picture's detail level to bring out detail from the shadows over lowering the luminance of a purposefully exposed picture that is exposed HIGHER than optimal.
Exposing to the right means making an exposure/file with the maximum amount of useful information possible for the given scene, lighting, and camera. Tones placed above 255 are not useful information.
Actually, not really. It means what it says... taking the picture some amount ABOVE the optimal settings for the reasons of increasing tonal details in the darker or shadow areas... and then HOPE you can bring the brighter parts of the picture back in post process. An inappropriate technique for the digital world becuase we don't have anywhere near the same dynamic range as a buffer that film does, but this TOTALLY is acceptable for film.
Once you hit the top of the limit, info is forever gone, there is nothing to recover. In film, this was not the case. First we are dealing with analog, and there was a huge gap over and above where we *could* pull things back in post (well technically, in development, while in the tank... lol).
Also, let's look at this. Your histogram shows that you are properly exposed... at some point along the mid areas, it is peaking right close to that 255 zone (in an 8-bit file), but our technique is to "expose to the right"... so we push it... what happens? We blow out detail from the mid tones! That is not recoverable, it is forever lost. Ah, so what if our mid-tones are not peaked? That is simply a BAD exposure... so if in this case you want to expose to the right... you are not doing that, you are just coming closer to optimal exposure. Now... do NOT forget to not just look at the luminance level... but how many people here are looking at the RGB histogram results? How many times are people "pushing to the right" without even looking at THESE parts of their pictures? I do not think it is far from the truth to say... the vast majority. If they were, they would soon find out that they are pushing either one, two or more of their RGB histograms WAY past that limit and blowing out more parts of their pics over and above just the lighter areas. There are *many* ways to blow out a pic and it is not just at the pure white end of a histogram, but from camera speak... ANY level that hits 255 anywhere between pure white to pure black is technically considered "blown out". We refer to the white end because it shows on the pic as no colour placed by the printer on that part of the paper, but really... we do not want any colour up there. It means lost detail.
Also, that 255 tone refers only to an 8-bit file and that *is* the limit. If it is hitting 255, that *is* blown out useless info (pure white if all the way to the right on the histogram, pure black if on the left). If dealing with RAW files as you mentioned, its 4095 for 12-bit and 16383 for 14-bit files. Hopefully, if you are working with RAW files, its NOT at the 8-bit level, given a choice!
When it comes to raw converters I've tried a few including Capture One and DPP. I couldn't see a significant, consistent difference in the quality of the processing. With one photo I'd get slightly less noise, slightly better color, etc... with one raw converter, and then a different photo would get slightly better results using a different raw converter. In the end I went with the one that I liked the interface the best which was Adobe Camera Raw (CS2).
I cannot speak for the Canon people, but the words "the best" to Nikon users can mean many things to many people. If "the best" to you means being able to access and manipulate the RAW data from your camera in ways that no other software can, then Capture NX2 is "the best" for Nikon people, because it can access data that no other non-Nikon software can, such as Active-D lighting, camera saturation, sharpness presets and a few others.
My definition of "the best" goes closely along your lines. CS3/4 as it is a less clunky and more intuitive software over NX2, that can further manipulate the imported file in more ways than Nikon's software, so for me, though it is not "the best" in all ways, it is the better choice compared to the alternatives, based on my needs.
I recently upgraded to CS4 and LR2, and I really like them. Although Camera Raw and LR2 are pretty much the same, I tend to use LR2 because the adjustment brush and graduated filter rock!
I'm still using it, I'm still learning it... but try as I may, I just cannot get into LR2's swing. :er:
I always seem to fall back to straight file/directory manipulation with Bridge/CS3 and do better and faster using my tried and true established and tested and perfected ways using my own methods of cataloging, tagging and post processing.
At least I am trying out the LR2 route and giving it a more than fair shake (using it for 4-5 months now), but not all users will have the same answer to their needs, and LR2 just may not be the best toy for my needs or way or working.
