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RAW vs. JPEG Showdown
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May 25, 2019 14:14:22   #
nekon Loc: Carterton, New Zealand
 
The client doesn't give a monkey's how the image is made

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May 25, 2019 15:20:50   #
Longshadow Loc: Audubon, PA, United States
 
nekon wrote:
The client doesn't give a monkey's how the image is made


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May 25, 2019 15:56:44   #
bwana Loc: Bergen, Alberta, Canada
 
controversy wrote:
An article from Aaron Nace of PHLEARN:

The RAW vs. JPEG Showdown: Which File Format Do You Really Want?

http://phlearn.com/magazine/the-raw-vs-jpeg-showdown-which-file-format-do-you-really-want/

Yawn...

bwa

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May 25, 2019 22:12:05   #
Blenheim Orange Loc: Michigan
 
nekon wrote:
The client doesn't give a monkey's how the image is made


That is not true. Otherwise, why would the client hire a pro? Sometimes the method is actually a selling point. Of course, maybe you are saying that it doesn't matter how you get there, just so long as you do get there. That is what the article is about - how to get there. For me, working with raw files is the best way to get there, and the client usually cares that I do get there. But even if the client didn't care, I do.

Mike

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May 25, 2019 23:19:06   #
TBerwick Loc: Houston, Texas
 
I just rolled my eyes, posted this comment & moved on.

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May 25, 2019 23:55:59   #
nekon Loc: Carterton, New Zealand
 
Some pros, like myself, only shoot jpegs,we get correct exposure, white balance, etc., through experience. So the need for Raw is moot.

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May 26, 2019 00:32:12   #
Blenheim Orange Loc: Michigan
 
nekon wrote:
Some pros, like myself, only shoot jpegs,we get correct exposure, white balance, etc., through experience. So the need for Raw is moot.


You shoot raw files, not JPEGs, and the camera converts the raw file to the JPEG format in the camera. Lots of pros let the camera create JPEGs for them for various reasons - deadlines, for example. Nothing wrong with that if that is what works and is needed. The implication that those working with raw files must therefore not get correct exposure, white balance, etc., through experience, however, is false. I don't work with raw files because I don't get "correct exposure, white balance, etc., through experience." The choice is not between getting it right or working with raw files. That is a common misconception.

Mike

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May 26, 2019 00:57:23   #
rmorrison1116 Loc: Near Valley Forge, Pennsylvania
 
Blenheim Orange wrote:
I don't think this is necessarily true, either. Canon cr raw files don't take any time to "process data" and whether or not a person is making so-called "mistakes" has nothing to do with which format to use. I work with raw files because the subtle color variations and fine detail that are critical to the results I want with the subjects I shoot are better represented in raw files than they are with camera generated JPEGs - much better - and that is before any "processing" or time consuming effort. The quality of the JPEGs and especially of the TIFF files that I output from the raw files for posting online and printing, almost always with very little work - a few seconds - is almost always much better than could ever be achieved by starting with camera generate JPEG files. Typically none of that involves "mistakes that can't be corrected as a JPEG," although it is much easier to salvage marginal images when working with raw files, However, for me, since the raw files gives such better feedback, such a better representation of what the sensor captures, that working with raw files means far, far fewer "mistakes" and much improved "in camera" images. Working with camera generated JPEGs is always a guessing game and results are less predictable.

Working with raw files has meant less time spent, less skills required, more predictability and far better image quality. For me the decision to work with raw files was a "no brainer" as the saying goes - once I saw them, which is why I think the idea that "you can't see them" is misleading. I can "see" them. I can "see" them before any "processing" which is why I think the idea that raw takes a lot of time and skill in pp can also be misleading.

There is an unbelievable amount of confusion about this topic and I don't claim to be an authority. I am describing my experience.

Mike
I don't think this is necessarily true, either. Ca... (show quote)


The two key phrases I read here are, I am not certain, and I don't think.

You're not certain that RAW files are unprocessed data files? I'm certain of it. As for being able to see the image, what part of embedded JPEG thumbnail didn't you understand?!

What make mistakes means is, didn't get all the processing parameters set correctly for the camera to process the RAW data into best case JPEG images. Once the data is processed and compressed, you can't get it back, the camera throws it away.
Again, RAW is NOT, NOT, NOT an image format, it's the data that came off the image sensor, passes through the image processor and is then written to memory. It's all the data, repeat, all the data that came from the sensor and some more data the cameras image processor tacked on, like that thumbnail. That's pretty much why Nikon RAW files are different from Canon RAW files. Their proprietary data is different, but the concept is the same. It's kinda like but not the same as, the difference between EBCDIC and ASCII.
The reason you can and do get better images or at least better control over the images when you process them is, RAW is all the data; no compression, nothing removed; it's all the data. JPEG'S are not...
I'm pretty sure you work with RAW because it gives you all the data which gives you control over the final quality of the image. Instead of having the camera process the data into images, you do it yourself. It's quite easy to do if you have the right software and have a clue, and obviously you do.

Here's where I'm coming from. Data is data is data. There are all kinds of data. Processed data, raw data, whatever. I worked in the information technology industry for close to 40 years and my specialty was data. Data capture, data integrity, data design and formatting, just about anything pertaining to the actual client data before it was loaded onto our systems and after. My teams motto was, "Data R Us". I have maybe, a wee bit (or byte) of an understanding of, data. The stuff gathered by and stored on digital cameras is nothing more than data. The fundamental difference being the end result. Digital images, photographs, instead of financial reports or spread sheets or statements or checks or deposit tickets. It's all data to me... And, I know, or use to, a bit about programs that manipulate, modify and or process data. I've written thousands of programs over the years using standardized and proprietary languages. I've worked with several different data base management systems over the years and have even designed my own proprietary database complete with custom designed file formats, linkages, pointer systems, compression logarithms and mnemonics. And some of it even included embedded image data.

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May 26, 2019 01:13:06   #
rmorrison1116 Loc: Near Valley Forge, Pennsylvania
 
nekon wrote:
Some pros, like myself, only shoot jpegs,we get correct exposure, white balance, etc., through experience. So the need for Raw is moot.


That's because you have the option to set the parameters the camera is using to process the raw data into jpegs. Hopefully you're not using factory defaults and you modify the parameters to fit each situation. The beauty of raw is you control the processing of the data into an image format. you can make adjustments to the image that just aren't possible with a jpeg because with a jpeg, the data needed to make the adjustment is gone.
There's absolutely nothing wrong with setting the cameras parameters to process the raw data into jpegs, nothing at all. It's not better and it's not worse. It only limits what you can do with the data in post processing, that's it. The need for raw is not moot. Without raw the camera has no data to process. It doesn't pull jpegs of the image sensor. One other thing, something I learned some time ago, experience gives one little control over changing environment.
Bottom line, if you don't want to shoot raw, don't. Like shooting full manual, shooting raw is not a badge of honor. It simply is what it is.

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May 26, 2019 01:16:43   #
Blenheim Orange Loc: Michigan
 
rmorrison1116 wrote:
The two key phrases I read here are, I am not certain, and I don't think.

You're not certain that RAW files are unprocessed data files? I'm certain of it. As for being able to see the image, what part of embedded JPEG thumbnail didn't you understand?!

What make mistakes means is, didn't get all the processing parameters set correctly for the camera to process the RAW data into best case JPEG images. Once the data is processed and compressed, you can't get it back, the camera throws it away.
Again, RAW is NOT, NOT, NOT an image format, it's the data that came off the image sensor, passes through the image processor and is then written to memory. It's all the data, repeat, all the data that came from the sensor and some more data the cameras image processor tacked on, like that thumbnail. That's pretty much why Nikon RAW files are different from Canon RAW files. Their proprietary data is different, but the concept is the same. It's kinda like but not the same as, the difference between EBCDIC and ASCII.
The reason you can and do get better images or at least better control over the images when you process them is, RAW is all the data; no compression, nothing removed; it's all the data. JPEG'S are not...
I'm pretty sure you work with RAW because it gives you all the data which gives you control over the final quality of the image. Instead of having the camera process the data into images, you do it yourself. It's quite easy to do if you have the right software and have a clue, and obviously you do.

Here's where I'm coming from. Data is data is data. There are all kinds of data. Processed data, raw data, whatever. I worked in the information technology industry for close to 40 years and my specialty was data. Data capture, data integrity, data design and formatting, just about anything pertaining to the actual client data before it was loaded onto our systems and after. My teams motto was, "Data R Us". I have maybe, a wee bit (or byte) of an understanding of, data. The stuff gathered by and stored on digital cameras is nothing more than data. The fundamental difference being the end result. Digital images, photographs, instead of financial reports or spread sheets or statements or checks or deposit tickets. It's all data to me... And, I know, or use to, a bit about programs that manipulate, modify and or process data. I've written thousands of programs over the years using standardized and proprietary languages. I've worked with several different data base management systems over the years and have even designed my own proprietary database complete with custom designed file formats, linkages, pointer systems, compression logarithms and mnemonics. And some of it even included embedded image data.
The two key phrases I read here are, I am not cert... (show quote)


I said I was not certain mostly out of courtesy. Canon's proprietary program interprets Canon's proprietary raw data files and displays an image. There can be no question about that. That is not an embedded JPEG thumbnail. Other programs interpret JPEG format data, and display an image. Two types of data files, two types of programs to read and display the files. That is why I said that it is not certain that a raw file is unprocessed data while a JPEG file is not. In fact, I am quite certain that it is not so. Should Canon make their format open source, then who knows, maybe browsers would be able to read and display .cr files some day. What we do know is that the raw data in the file can be displayed, and there is no JPEG creation involved. That is a 99% certainty, and would be a 100% certainty if the raw file formats were not secret.

Mostly I work with raw files because the subtle color gradations, which makes a big difference for what I do. I can make a better JPEG as needed than is possible in camera. Working with raw files is faster, easier and produces higher quality output.

Mike

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May 26, 2019 01:16:48   #
rmorrison1116 Loc: Near Valley Forge, Pennsylvania
 
nekon wrote:
The client doesn't give a monkey's how the image is made


A monkey's what? A monkey's left hand? A monkey's tail? A monkey's right shoulder? Or are you to squeamish to say, a monkey's butt?!

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May 26, 2019 01:34:28   #
rmorrison1116 Loc: Near Valley Forge, Pennsylvania
 
Blenheim Orange wrote:
I wasn't looking for an argument, but I guess that is impossible to avoid with this subject. I said I was not certain mostly out of courtesy. Canon's proprietary program interprets Canon's proprietary raw data files and displays an image. There can be no question about that. That is not an embedded JPEG thumbnail. Other programs interpret JPEG format data, and display an image. Twoi types of data files, two types of programs to read and display the files. That is why I said that it is not certain that a raw file is unprocessed data while a JPEG file is not. In fact, I am quite certain that it is not so. Should Canon make their format open source, then who knows, maybe browsers would be able to read and display .cr files some day. What we do know is that the raw data in the file can be displayed, and there is no JPEG creation involved. That is a 99% certainty and would be a 100% certainty if the raw file formats were not secret.

I know what an embedded JPEG is thumbnail, thanks, and I can assure you I am not talking about an embedded JPEG thumbnail.

Mike
I wasn't looking for an argument, but I guess that... (show quote)


Ahh, I'm sorry, you are making little sense or you are having a TIA plus I'm fairly sure you know not much of what you speak (type).
1. No, the raw data can't be displayed as an image because it has not been processed, thus the name RAW
2. RAW is NOT an image format, it is unprocessed data. Yes, a certain amount of processing has taken place by the cameras image processor. But, the processing has not created a full blown image file, just the data needed to do so.
3. The reason most is not all camera manufacturers embed a thumbnail into the raw data is so it may be viewed without being processed first. It would be pretty silly, no stupid, to have data that you don't know what it represents. Think about it...
4. When you rebutted everything I said, yes, you definitely were asking for an argument. You just didn't realize the person on the other side has a clue.
5. I may not have worded some things as accurately or pretty as I'd like due to time restraints; just trying to not get carried away.
6. Who said RAW is a acronym? It is called RAW because it is unprocessed, uncooked. Get the picture?!
7. It's late and I've got things to do tomorrow morning... Good Night.

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May 26, 2019 01:46:36   #
Blenheim Orange Loc: Michigan
 
rmorrison1116 wrote:
Ahh, I'm sorry, you are making little sense or you are having a TIA plus I'm fairly sure you know not much of what you speak (type).
1. No, the raw data can't be displayed as an image because it has not been processed, thus the name RAW
2. RAW is NOT an image format, it is unprocessed data. Yes, a certain amount of processing has taken place by the cameras image processor. But, the processing has not created a full blown image file, just the data needed to do so.
3. The reason most is not all camera manufacturers embed a thumbnail into the raw data is so it may be viewed without being processed first. It would be pretty silly, no stupid, to have data that you don't know what it represents. Think about it...
4. When you rebutted everything I said, yes, you definitely were asking for an argument. You just didn't realize the person on the other side has a clue.
5. I may not have worded some things as accurately or pretty as I'd like due to time restraints; just trying to not get carried away.
6. Who said RAW is a acronym? It is called RAW because it is unprocessed, uncooked. Get the picture?!
7. It's late and I've got things to do tomorrow morning... Good Night.
Ahh, I'm sorry, you are making little sense or you... (show quote)


Sorry, I am looking at a rendition of a Canon raw file right now in Canon's DPP program. It is not a JPEG. It is most definitely not a "thumbnail." No "processing" is involved.

All data files are "unprocessed" until a program that can read them renders them. Have you ever opened JPEG file with a text editor?

JPEG, and TIFF etc. are capitalized because they are acronyms.

Mike

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May 26, 2019 03:05:03   #
rmorrison1116 Loc: Near Valley Forge, Pennsylvania
 
Blenheim Orange wrote:
Sorry, I am looking at a rendition of a Canon raw file right now in Canon's DPP program. It is not a JPEG. It is most definitely not a "thumbnail." No "processing" is involved.

All data files are "unprocessed" until a program that can read them renders them. Have you ever opened JPEG file with a text editor?

JPEG, and TIFF etc. are capitalized because they are acronyms.

Mike


OMG, How dense is dense. DPP is Canon's proprietary program to read and process CR2 RAW data. The embedded thumbnail is in the file header along with EXIF data. Minimal processing is involved because DPP had to read the data and the instructions the image processor put in the header data, including but not limited to the JPEG thumbnail.
I never mentioned anything about JPEG and TIFF acronyms, all I said is RAW is not an acronym, but, CR2 is an acronym. Canon Raw version II (two).
You can sometimes open a formatted image file with a text editor but all you will see is mostly gibberish because it's not text data. Some text editors won't even open the file because they know it's not text and if one accidentally saves the data in may be damaged.
I thought you said you shoot RAW. Yea, so do I. If I'm shooting just for me I usually shoot only raw. If I'm shooting for someone else, for example, I did a 4 year olds birthday party this past afternoon, I shoot RAW and JPEG. The JPEG'S are copied on to a thumb drive so the person who requested the photos may choose which one to print. The JPEG'S are the smallest, lowest quality my 5D mk IV or 5Dsr can produce.

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May 26, 2019 04:32:03   #
nekon Loc: Carterton, New Zealand
 
Mike, you have missed my point.,If you get things right using resulting jpegs, then there is no need for Raw manipulation.

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