Buddy be aware I'm not the best at post processing i'm just trying to give a bit back. Folks here and elsewhere have gone out of their way to help me and push me forwards, So it natural for me to want to try and pass a bit forwards,I just want you to understand I'm possibly not the best man for the job,
ETTR expose to the right........ when we boost a signal.or part of a signal we boost noise,it's physicis bro, law............ call it what you like .It is cold hard fact.
So we expose to the right pushing the exposure into the realms of over exposure,WITHOUT CLIPPING THE HILIGHTS , to give ourselves the best possible RAW file to work upon . This will manifest it's self as the data in your histogramme being pushed over towards the right hand side,ie towards the brights...hence ETTR
The exposure being on the bright side means we won't hopefully need any part of our image boosting. So when we process we won't have to boost the shadows and naturally boost the noise within those shadows. Daz by using ETTR you get the highest quality file with as little noise as poss. Basically you are getting the highest possible signal to noise ratio
Mate as above I have had some incredibly gifted image makers help me along,they have taught me to push my iso to keep my SS up. The ethos is to get the sharpest image possible and worry on the noise reduction afterwards If the image isn't sharp we are scuppered anyway
The more you push ISO the more you will need to nail that exp. Our modern sensors like in our 1dxii's are much more forgiving of under exposure.But the older cameras like my 1div your 1diii are not so flexible. Buddy I have been taught a certain way,push ISO for SS, so I don't think of ISO 800 as being high. I can get a half decent frame from ISO 6400 with the older camera. Look you judge this frame is ISO 5000
_70F1597 by
Stuart Philpott, on Flickr
This one is with the 1dxii and a bit bonkers ISO wise at 16000 no not one thousand six hundred.............it is sixteen thousand
_S2I8821GSW 1sm by
Stuart Philpott, on Flickr
Buddy I'm not saying they are great images just trying to make you aware of a method of squeezing as much as possible out of our wonderful brit light and give you an idea of what is possible with a couple of examples.
What you want to do is set the hilight alert on the camera so when you look at the image you have just taken and it's histogramme you can adjust the EXP to get it as near as possible to the RHS. Having the hilight alert ie the blinkies means you can see very quickly if anything is blowing out. If you see just a tiny amount of blinkies flashing and you are shooting in RAW you will probably be on the money EXP and ETTR wise and will still be able to recover those blinkies in post processing . So basically try and nab a few test frames and have a good chimp adjust exp check again and you should be good.
Buddy I don't honestly know on the blue maybe someone else can pin point this for you. I'd also welcome anyone more advanced than me ripping up what I've told you if it is in any way incorrect. This stuff is really important Darren . Many folks don't really understand ETTR which is why I've laboured this a bit . It's basic but so useful especially if you shoot in places where the light is not ideal
I only shoot wildlife Daz and am not terribly confident about my abilities in that genre. We have some fantastic sports togs here much better equipped to help you than me
hope this helps mate
stu