Reply to topic  [ 14 posts ] 
Exposing to the right 
Author Message
Doesn't have much of a life
User avatar

Joined: Thu Apr 23, 2009 6:37 pm
Posts: 835
Location: North Wales UK
Reply with quote
Hi, all.

There was an excellent article in the latest DSLR Photography mag about over-exposing your pictures in RAW format.

I had thought that it was better to under-expose and avoid blowing highlights, but it seems that there can be a lot of noise in the darker areas of the photograph.

The problem that I have had is that many of my photograph previews have shown extensive blown highlights, BUT... it turn out that the preview picture on the camera screen is based on the JPEG that would result from your CURRENT camera settings for brightness and contrast. So, here's the tutorial.

First of all, alter your camera settings to Neutral or Faithful or whatever applies no brightness or contrast adjustment to the photograph. This will give a preview on the screen much closer to the RAW data.

Next, after exposure, check the histogram. If none of it is bunched up against the right side, then over-expose in appropriate steps until the histogram reaches the right side of the graph. Be careful to check that none of the individual colours have over-exposed.

Be aware that even if your blown-highlights warning is flashing on the screen, there can still be plenty of detail in the highlights.

The picture preview might look [LIFTED] awful, but that's the point. Once you work on the brightness and contrast, you should have a high quality result.

_________________
My lowest spec operational system- AT desktop case, 200W AT PSU, Jetway TX98B Socket 7, Intel Pentium 75Mhz, 2x16MB EDO RAM, 270MB Quantum Maverick HDD, ATI Rage II+ graphics, Soundblaster 16 CT2230, MS-DOS/Win 3.11

My Flickr


Thu Nov 26, 2009 11:11 am
Profile
Moderator
User avatar

Joined: Thu Apr 23, 2009 6:11 pm
Posts: 12143
Location: Belfast
Reply with quote
trigen_killer wrote:
Be aware that even if your blown-highlights warning is flashing on the screen, there can still be plenty of detail in the highlights.
Que?
Also, my camera lets the operator adjust brightness and contrast (possibly other controls too) of the actual screen on the back.
The histogram is the best indication of over/under exposure, in my humble opinion.

Mark

_________________
okenobi wrote:
All I know so far is that Mark, Jimmy Olsen and Peter Parker use Nikon and everybody else seems to use Canon.
ShockWaffle wrote:
Well you obviously. You're a one man vortex of despair.


Thu Nov 26, 2009 11:16 am
Profile WWW
Moderator

Joined: Thu Apr 23, 2009 6:13 pm
Posts: 7262
Location: Here, but not all there.
Reply with quote
Histograms FTW!

_________________
My Flickr | Snaptophobic Bloggage
Heather Kay: modelling details that matter.
"Let my windows be open to receive new ideas but let me also be strong enough not to be blown away by them." - Mahatma Gandhi.


Thu Nov 26, 2009 11:59 am
Profile
I haven't seen my friends in so long
User avatar

Joined: Thu Apr 23, 2009 9:40 pm
Posts: 5288
Location: ln -s /London ~
Reply with quote
HeatherKay wrote:
Histograms FTW!

++;

_________________
timark_uk wrote:
Gay sex is better than no sex

timark_uk wrote:
Edward Armitage is Awesome. Yes, that's right. Awesome with a A.


Thu Nov 26, 2009 12:15 pm
Profile
Doesn't have much of a life
User avatar

Joined: Thu Apr 23, 2009 6:37 pm
Posts: 835
Location: North Wales UK
Reply with quote
timark_uk wrote:
trigen_killer wrote:
Be aware that even if your blown-highlights warning is flashing on the screen, there can still be plenty of detail in the highlights.
Que?


My preview screen can be set to indicate areas where the highlights are washed out. The article showed that even where the preview screen indicates blown highlights, the detail can still very much exist in the RAW data. Over time, I have probably ditched quite a few decent pics because of the highlights warning.

_________________
My lowest spec operational system- AT desktop case, 200W AT PSU, Jetway TX98B Socket 7, Intel Pentium 75Mhz, 2x16MB EDO RAM, 270MB Quantum Maverick HDD, ATI Rage II+ graphics, Soundblaster 16 CT2230, MS-DOS/Win 3.11

My Flickr


Thu Nov 26, 2009 9:59 pm
Profile
Site Admin
User avatar

Joined: Thu Apr 23, 2009 5:53 pm
Posts: 8603
Location: location, location
Reply with quote
timark_uk wrote:
Que?


Now I feel like a noob :x

I base my pics on the shot using the histogram for reference then if needed clean up the RAW file later. My DSLR can show me RGB histo's (I expect most do anyway) but I always seem to think to technically so focus on trying to get a good shot instead of the perfect (technical) shot.

This however maybe complete twaddle as I'm drinking a beer at the moment.

Lomo FTW

_________________
Support X404, use our Amazon link
Get your X404 tat here
jonlumb wrote:
I've only ever done it with a chicken so far, but if required I wouldn't have any problems doing it with other animals at all.


Thu Nov 26, 2009 10:12 pm
Profile WWW
I haven't seen my friends in so long
User avatar

Joined: Fri Apr 24, 2009 7:17 am
Posts: 5550
Location: Nottingham
Reply with quote
saspro wrote:

Lomo FTW


I'm fecking itching for a Holga!!!! Its seems like the polar opposite of trying to achieve technical perfection. Come on Christmas, hurry up and bring me what I want!

_________________
Twitter
Blog
flickr


Fri Nov 27, 2009 8:36 am
Profile WWW
What's a life?
User avatar

Joined: Thu Apr 23, 2009 6:27 pm
Posts: 12251
Reply with quote
veato wrote:
saspro wrote:

Lomo FTW


I'm fecking itching for a Holga!!!! Its seems like the polar opposite of trying to achieve technical perfection. Come on Christmas, hurry up and bring me what I want!


yes - everybody buy a crap camera with your Christmas pressie money. All this digital perfection could drive a mad man sane.

_________________
All the best,
Paul
brataccas wrote:
your posts are just combo chains of funny win

I’m on Twitter, tweeting away... My Photos Random Avatar Explanation


Fri Nov 27, 2009 1:22 pm
Profile
I haven't seen my friends in so long
User avatar

Joined: Fri Apr 24, 2009 7:17 am
Posts: 5550
Location: Nottingham
Reply with quote
paulzolo wrote:

yes - everybody buy a crap camera with your Christmas pressie money. All this digital perfection could drive a mad man sane.


I presume this is sarcastic. Cant quite tell though. I'll do the defensive bit anyway.....

What I really like about the idea of Lomo type stuff is that it can put the fun back into the whole process. I find striving for the technically perfect picture (although I do enjoy it) can take some of the fun out of photography. Having a dick around with a toy camera and producing some unique images whilst getting to play with some 120 film in the process is a concept I could really get on with. That doesnt mean I would abandon the DSLR and all that comes with it.

_________________
Twitter
Blog
flickr


Mon Nov 30, 2009 2:46 pm
Profile WWW
What's a life?
User avatar

Joined: Thu Apr 23, 2009 6:27 pm
Posts: 12251
Reply with quote
veato wrote:
paulzolo wrote:

yes - everybody buy a crap camera with your Christmas pressie money. All this digital perfection could drive a mad man sane.


I presume this is sarcastic.

No.

veato wrote:
Cant quite tell though. I'll do the defensive bit anyway.....

What I really like about the idea of Lomo type stuff is that it can put the fun back into the whole process. I find striving for the technically perfect picture (although I do enjoy it) can take some of the fun out of photography. Having a dick around with a toy camera and producing some unique images whilst getting to play with some 120 film in the process is a concept I could really get on with. That doesnt mean I would abandon the DSLR and all that comes with it.


Well, yes. That is what I was thinking too. Sometimes being forced to work with something less than perfect can bring out interesting results.

_________________
All the best,
Paul
brataccas wrote:
your posts are just combo chains of funny win

I’m on Twitter, tweeting away... My Photos Random Avatar Explanation


Mon Nov 30, 2009 3:07 pm
Profile
Moderator
User avatar

Joined: Thu Apr 23, 2009 6:11 pm
Posts: 12143
Location: Belfast
Reply with quote
paulzolo wrote:
Sometimes being forced to work with something less than perfect can bring out interesting results.
Then again, working with something you know inside out can also produce very interesting results.
Familiarity doesn't always have to breed contempt.

Mark

_________________
okenobi wrote:
All I know so far is that Mark, Jimmy Olsen and Peter Parker use Nikon and everybody else seems to use Canon.
ShockWaffle wrote:
Well you obviously. You're a one man vortex of despair.


Mon Nov 30, 2009 3:21 pm
Profile WWW
I haven't seen my friends in so long
User avatar

Joined: Thu Apr 23, 2009 9:40 pm
Posts: 5288
Location: ln -s /London ~
Reply with quote
timark_uk wrote:
paulzolo wrote:
Sometimes being forced to work with something less than perfect can bring out interesting results.
Then again, working with something you know inside out can also produce very interesting results.
Familiarity doesn't always have to breed contempt.

It seems the only answer is to hve many and various cameras, and to have the time to devote to playing with them all!

_________________
timark_uk wrote:
Gay sex is better than no sex

timark_uk wrote:
Edward Armitage is Awesome. Yes, that's right. Awesome with a A.


Tue Dec 01, 2009 5:06 pm
Profile
What's a life?
User avatar

Joined: Thu Apr 23, 2009 7:56 pm
Posts: 12030
Reply with quote
EddArmitage wrote:
It seems the only answer is to hve many and various cameras, and to have the time to devote to playing with them all!


*likes this idea*

_________________
www.alexsmall.co.uk

Charlie Brooker wrote:
Windows works for me. But I'd never recommend it to anybody else, ever.


Tue Dec 01, 2009 10:53 pm
Profile
What's a life?
User avatar

Joined: Thu Apr 23, 2009 6:27 pm
Posts: 12251
Reply with quote
ProfessorF wrote:
EddArmitage wrote:
It seems the only answer is to hve many and various cameras, and to have the time to devote to playing with them all!


*likes this idea*


+1

_________________
All the best,
Paul
brataccas wrote:
your posts are just combo chains of funny win

I’m on Twitter, tweeting away... My Photos Random Avatar Explanation


Tue Dec 01, 2009 11:02 pm
Profile
Display posts from previous:  Sort by  
Reply to topic   [ 14 posts ] 

Who is online

Users browsing this forum: No registered users and 12 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group
Designed by ST Software.