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Software Discuss Olympus Master, Studio and Viewer software applications as well as third party programs like Adobe Photoshop, Lightroom, Apple Aperture, and others.

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  #1  
Old 26th January 2011
garethlovering garethlovering is offline
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RAW files

What is the point of shooting in RAW?
You take a photo, edit the pic in Elements 9 and save in DNG format.
You can't take the DNG file to a printing lab in most city centres because they don't regonise the file format. So unless you print it yourselve what is the point of RAW files?
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  #2  
Old 26th January 2011
Jim Ford Jim Ford is offline
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Re: RAW files

A raw/DNG file is the 'digital negative' from which you can create any number of output (screen/print) variations without affecting the original in any way. Raw files are your 'masters'.

You can use the raw file to create (say) a print and later, having gained more PP experience, go back to the raw file and create a better or different one. The original remains unchanged.

Jim
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  #3  
Old 26th January 2011
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Re: RAW files

RAW isn't a photo file like JPG and RAW. It's just all the data that the camera records (The 1's and 0's in binary files) Every thing you do with that RAW-file is changing the 1's and 0's and the quality of the photo is not changed.

When it comes to JPG you degrade the quality in the ENTIRE image every time you change something. You reduce the quality and in the end you get pixelation and stripes in the photo that makes it look bad.

So why shoot RAW? If you take the photo with the wrong whitebalance or want to play with the whitebalance for mood you can do that without degrading the photo. If your photo is taken with wrong exposure that's easily fixed with RAW. Colcours, brightness etc.etc.

For me, the only time I shoot JPG is if I'm on assignment (sports etc.) that requires immediate delivery of the photo, but even then I shoot RAW+JPG so I can play with the RAW-file later for the extra stunning portfolio photos.
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Old 27th January 2011
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Re: RAW files

Jim said .. it's thhe one format you can truly trust not to have changed in some way since yuo took it and as you learn and software gets better you can go back and do things that were impossible before

I've recently reprocessed some E-500 caving pictures and goy a whole lot more out of them which now makes them useful whereas given what I knoew when I took them my PP was very sohddy and I wasn't happy with the result

Yes I could have stated from a PJPEG, but so much detail has already been lost and decisions made that are not strightforward to adjust

DNG is just Adobe's l;atest fad - I have little trust that it's gained enough ground to be guaranteed to be kept in the log term. If and when I ever change my mind about that I will simply batch process files into DNG at an appropriate time - in the mean time RAW is better IMO



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  #5  
Old 27th January 2011
maccabeej maccabeej is offline
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Re: RAW files

With RAW there is much more dynamic range available. You often can't gain all of that extra info in a print or on a screen. But you can decide whcih parts of it you like. You can process for the shadows and let the highlights blow, keep details in the highlights and let the shadows block or try to fit the tones into the gamut you are working with. This is the process that Ansel Adams used to print his great images. If you don't have the detail you don't have the choice.
Jim
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  #6  
Old 27th January 2011
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Re: RAW files

Starting with RAW means you have all the information the camera recorded in the first place.

A camera JPEG is actually developed from the original RAW data recorded by the camera, but unless you save the RAW file it is lost for ever. You can actually record RAW and JPEG at the same time in the camera.

The camera JPEG is a distillation of the original RAW data. But a skilled photographer will be able to work from a RAW file to produce a better result than the camera. Once you're happy with the manipulated RAW image, you export it in any format you might like, including JPEG.

The main benefits of RAW processing are:
  • Much better adjustment and correction of white balance
  • Better control of brightness and dynamic range
  • More effective noise management and sharpening
  • Arguably best for workflow when shooting large numbers of images when using modern RAW processing tools like Lightroom, Aperture, etc.

Any adjustment of colour is much better in RAW because you can adjust the original colour channels. With JPEG, the colours are already mixed; think of mixing colours and paint. You always have fresh base colours with RAW.

Ian
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  #7  
Old 27th January 2011
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Re: RAW files

All digital cameras take pictures in Raw only. It's up to you whether you choose to process that Raw file yourself or allow the software in the camera to do it for you.

As has been well stated, although the Jpeg developers in Olympus cameras are very good, there are many occasions when you may disagree with how it's done something. If you keep and process the Raw file, you can use your own judgement.
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  #8  
Old 28th January 2011
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Re: RAW files

[QUOTE=garethlovering;100299]
You take a photo, edit the pic in Elements 9 and save in DNG format.
QUOTE]

Not quite true - after editing you would save in JPEG. As I understand things you convert your RAW file to DNG only if your editor doesn't recognise the RAW file produced by your camera, and BEFORE you edit it. If your editor does recognise your camera's RAW file then you have no need for DNG at all.
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  #9  
Old 28th January 2011
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Re: RAW files

[quote=meach;100408]
Quote:
Originally Posted by garethlovering View Post
You take a photo, edit the pic in Elements 9 and save in DNG format.
QUOTE]

Not quite true - after editing you would save in JPEG. As I understand things you convert your RAW file to DNG only if your editor doesn't recognise the RAW file produced by your camera, and BEFORE you edit it. If your editor does recognise your camera's RAW file then you have no need for DNG at all.
In fact none of the edits would be saved in DNG as that is a RAW format. Once changes have been made, it's no longer RAW.

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Last edited by Ian; 28th January 2011 at 03:00 PM.
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  #10  
Old 28th January 2011
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Re: RAW files

<PEDANT> It's not RAW, it's raw. It's a word, not an acronym. And it means pretty much what it says. </PEDANT>

Ciao ... John
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  #11  
Old 28th January 2011
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Re: RAW files

Quote:
Originally Posted by Bikie John View Post
<PEDANT> It's not RAW, it's raw. It's a word, not an acronym. And it means pretty much what it says. </PEDANT>

Ciao ... John
Shouldn't that be pedant, not PEDANT?

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  #12  
Old 28th January 2011
ianinsuffolk ianinsuffolk is offline
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Re: RAW files

Now, now.... the point of this raw argument is that there is no discussion - raw (RAW) is clearly the best workflow for quality. However, when caputuring action as a sequence of shots I use jpeg as we all know there's a limit on number of _ _ _ (dare not put the word) shots one can take in one go.
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  #13  
Old 28th January 2011
danellis danellis is offline
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Re: RAW files

I tend to think of the raw file as being like a film negative.
Photoshop or gimp, or whatever you use, is your darkroom where you process it to produce your developed photo as a jpeg. Shooting straigt to jpeg would be the same as sending your film roll to Boots!

dJE
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  #14  
Old 29th January 2011
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Re: RAW files

Quote:
Originally Posted by danellis View Post
I tend to think of the raw file as being like a film negative.
Photoshop or gimp, or whatever you use, is your darkroom where you process it to produce your developed photo as a jpeg. Shooting straigt to jpeg would be the same as sending your film roll to Boots!

dJE
While I am a died in the wool raw shooter I never understand this analogy as you can still manipulate a jpeg in photoshop (take it into the darkroom).
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Old 29th January 2011
danellis danellis is offline
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Re: RAW files

Quote:
Originally Posted by OlyPaul View Post
While I am a died in the wool raw shooter I never understand this analogy as you can still manipulate a jpeg in photoshop (take it into the darkroom).
I suppose so. But then one can always scan a printed photo and shop it.

dJE
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