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Questions tagged [raw]

RAW refers to any of several native data formats that contain the full data captured by the sensor. Typically these are proprietary formats, and each company uses its own.

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21 votes
4 answers
8k views

RAW files store 3 colors per pixel, or only one?

Ken Rockwell says that camera makers consider the individual R/G/B sensors when they talk about megapixels. So the image below would be a 6x6 pixel camera, not 3x3 as you would imagine. If that's ...
ariel's user avatar
  • 485
32 votes
4 answers
66k views

Why do RAW images look worse than JPEGs in editing programs?

I've found that when you load a RAW image into an editing program such as Lightroom/Aperture, the image is usually worse than if you just took the image as JPEG. Now I understand that the camera does ...
erotsppa's user avatar
  • 3,298
310 votes
16 answers
62k views

Good examples of RAW's advantages over JPEG?

I'm curious to see some real examples of where simply capturing the same photo in RAW (and being processed by someone who can do it justice) has significantly improved the photo at the end of the ...
Nick Bedford's user avatar
  • 9,762
101 votes
4 answers
19k views

What does an unprocessed RAW file look like?

I know people use fancy software like Lightroom or Darktable to post-process their RAW files. But what if I don't? What does the file look like, just, y'know, RAW?
mattdm's user avatar
  • 143k
12 votes
4 answers
3k views

Why can software correct white balance more accurately for RAW files than it can with JPEGs?

Why are post-processing JPEG white balance corrections not as accurate as white balance with Raw? My understanding is that when shooting jpeg the camera internally does the following steps: Convert ...
skyde's user avatar
  • 224
113 votes
5 answers
9k views

What is RAW, technically?

From a technical perspective, what exactly is RAW and how does it differ from JPG or bitmap images? I'm not asking about the pros/cons versus another format, but rather what constitutes RAW format, ...
Mike King's user avatar
  • 1,233
8 votes
3 answers
8k views

Why do my photos look different in Photoshop/Lightroom vs Canon EOS utility/in camera?

I've recently been shooting in raw with my new 100mm usm is macro but I'm getting strange results in out of focus areas with bright colours in. I've used Lightroom for ages and not had any issues with ...
ChrisFletcher's user avatar
9 votes
9 answers
9k views

While shooting in RAW, do you have to post-process it to make the picture look good?

I always shoot in RAW. But I take lots of pictures, when I am out shooting I might come home with 600+ pictures. Many of these pics are copies of the same motive, but with different aperture, shutter, ...
Chris's user avatar
  • 141
45 votes
14 answers
9k views

What are the pros and cons when shooting in RAW vs JPEG?

In general shooting in RAW format uses a lot more file storage than JPEG. What am I gaining when shooting RAW? Besides file size are there any downsides to shooting RAW?
jessegavin's user avatar
  • 1,413
30 votes
6 answers
35k views

Why does my Lightroom/Photoshop preview change after loading?

Everybody who is using Lightroom probably has seen this. After importing RAW files, Lightroom shows a preview, but contrast and color of the preview change after a few short seconds to a slightly ...
Sam's user avatar
  • 3,146
5 votes
4 answers
4k views

How to make camera LCD show true RAW data in JPG preview and histogram?

With Canon 650D (and presumably all the other Canon), I noticed that the picture style and full JPG processing is used to generate a review JPEG which is what the camera actually reads when reviewing ...
user1207217's user avatar
12 votes
4 answers
5k views

How do I start with in-camera JPEG settings in Lightroom?

I'm a novice shooting in RAW and find that half the time my camera JPEG images come out better than my Lightroom tweaks to RAW files. So to give myself a better start I'd like to apply the JPEG ...
Projectile Fish's user avatar
0 votes
2 answers
865 views

RAW in ACR vs JPG in ACR

Photoshop has now given the facility to open and edit JPEGs and other non-RAW file formats using Adobe Camera Raw. One doesn't have to shoot RAWs to do some heavy edits. So is there still any benefit ...
user152435's user avatar
  • 1,515
41 votes
5 answers
12k views

What's the point of capturing 14 bit images and editing on 8 bit monitors?

I am bit confused. If my DSLR is capturing 14 bit image while shooting RAW. Don't I need a 14 bit monitor also to take full advantage of capturing in RAW? Whats the point of capturing an image in 14 ...
user1187405's user avatar
2 votes
1 answer
6k views

Opening NEF files on windows initially open fine but then change contrast

I have a strange issue with Windows 10 When I open .nef files they load fine. However after a second or two the contrast changes noticeably. I tried ...
Ruslan's user avatar
  • 819
30 votes
4 answers
6k views

Do I lose anything converting to DNG?

I'd like to convert all my ARW (Sony) files to DNG for several reasons, but the only thing keeping me back from doing it is the fear of losing useful metadata during the conversion. I know that the ...
RPG Master's user avatar
62 votes
15 answers
95k views

What tools are available for RAW image processing in Linux?

I have been taking photographs with RAW format. What tools are available for working with RAW under Linux?
28 votes
9 answers
163k views

How do popular free RAW editor/converter compare to each other on Windows?

I'm looking for a free RAW editor/converter on Windows. Can you tell me some strong/weak points of them comparing with Capture NX and/or Adobe Photoshop Elements? RawTherapee PhotoFiltre Able RAWer ...
16 votes
4 answers
1k views

Why is my camera so forgiving for overblown exposure when shooting in RAW?

I've found that my camera (Sony A99) is very forgiving in terms of overexposure when shooting in RAW. By that I mean, I can overexposure by a stop or so and when I get home for the post processing I ...
erotsppa's user avatar
  • 3,298
15 votes
2 answers
2k views

Why does the histogram of an image depends on the software that opened it?

If I open a raw image in Photoshop and Paintshop pro their histograms and their look is different. However, if I open a Jpeg image in both Software, then their histogram and look is the same. What ...
MOON's user avatar
  • 335
3 votes
3 answers
2k views

Why are my RAW images already in colour if debayering is not done yet?

I recently went on a trip and took a bunch of pics with my girlfriends Canon Rebel. We shot in RAW, and now I am going to process the RAW images in DarkTable (my first time ever). I have read that ...
Scorb's user avatar
  • 1,048
37 votes
13 answers
15k views

How can I get a good HDR image from a single RAW file?

I've heard that it's possible to create an HDR image from a single RAW file. (Obviously, it won't be as good as using multiple bracketed RAW files; I know that much.) Every time I try — using ...
Matt Bishop's user avatar
  • 3,380
27 votes
4 answers
17k views

What are the pros and cons of different Bayer demosaicing algorithms?

Bayer sensors use a pattern of red, green, and blue pixels, and merge those together into a final color image, with one pixel for every single color sensor. This could be done through a "naive" ...
mattdm's user avatar
  • 143k
6 votes
2 answers
5k views

How to automatically apply a Lightroom Preset based on appropriate (Canon) Picture Style on import

Note: I do not believe this question is a duplicate of "How to emulate the in-camera processing into lightroom" (I referred to this question in my question) I just want that my monochrome images stay ...
c33s's user avatar
  • 191
5 votes
1 answer
993 views

Match colors in Lightroom to other editing tools [duplicate]

I noticed that sometimes Lightroom develops a raw image quite differently from my Canon camera or DPP (Digital Photo Professional by Canon). Even if in 90% of the cases I'm happy with Lightroom, in ...
Ghigo's user avatar
  • 213
35 votes
15 answers
14k views

Why store both JPEG and raw?

DSLRs often have the ability to store both a JPEG and a raw file. Given that the primary benefit of in-camera JPEG over raw is the smaller filesize, and that JPEG+raw is going to store even more data ...
Evan Krall's user avatar
  • 12.4k
32 votes
8 answers
8k views

Why can I adjust the white balance of a RAW file but not a JPEG file?

I recently started setting my DSLR to save RAW files, and using Adobe Lightroom to process them. I still, however, use my little point and shoot camera a lot which does not have an option to save RAW ...
Eric's user avatar
  • 1,411
24 votes
5 answers
3k views

How do I get started with RAW photography?

Having read about the benefits of shooting in RAW as opposed to JPEG (for example this question), I'd like to have a go with it myself. However, I'm not really sure how to go about it. I can turn RAW ...
robintw's user avatar
  • 345
21 votes
4 answers
8k views

When shooting in mRAW or sRAW, how does the camera generate smaller files?

Most mid- and high-end DLSRs offer two or three sizes for RAW capture. When the camera is generating the medium or small sized RAW files, how does it make them smaller? Does it capture less ...
ahockley's user avatar
  • 21.5k
15 votes
4 answers
4k views

How can I reproduce the camera-internal postprocessing?

I just started playing around with raw images. When opening the raw image in Raw Therapee, it looks completely different than the JPEG produced by the camera: (left is raw, right is JPEG) I figured ...
blubb's user avatar
  • 443
5 votes
3 answers
11k views

How to edit photos shot in fluorescent light

I recently shot a series of pictures (portraits and group shots) in a room with bad (fluorescent) light. I had no possibility of changing that lighting situation. Now back at home and in Lightroom I ...
smow's user avatar
  • 1,014
2 votes
2 answers
29k views

Why don't Lightroom or PSE recognize CR2 files from my Canon 7D mk II even though they are up to date?

I ordered a Canon 7D mark II (to replace a stolen 7D),and shot a friend's wedding in RAW. But now, I can only view the pictures in very poor quality on my computer's photo viewer. I am not able to ...
ashley's user avatar
  • 21
30 votes
3 answers
16k views

Does the selection of sRGB or Adobe RGB in camera when shooting RAW ever matter?

I shoot RAW essentially 100% of the time, and have the in-camera color space setting at AdobeRGB (sRGB is also offered). The raw converter in turn is set to produce sRGB output files. As I understand ...
user's user avatar
  • 1,099
29 votes
6 answers
6k views

If shooting RAW, is the white balance selected in camera irrelevant for exposure?

I have read the existing question - Does the camera white balance setting affect the raw image at all? After reading the above post, I am still not clear on the part around exposure. Is it possible ...
dpollitt's user avatar
  • 46.6k
12 votes
6 answers
2k views

How can different RAW converter programs give different results?

I've read in several places (photo mags, websites, etc.) that there are many different RAW converters around, not big name programs like PhotoShop, Lightroom, Picasa, PaintShopPro. What differences ...
Mike's user avatar
  • 1,403
9 votes
3 answers
2k views

Why don't cameras show an "accurate" histogram?

Why don't cameras show a histogram based on the RAW data rather than on the JPG preview? I know that a RAW file is not a viewable image and can't be displayed without applying curves and defining how ...
Jannik Pitt's user avatar
4 votes
2 answers
7k views

How to emulate the in-camera processing in Lightroom? [duplicate]

I'm a beginner in matters of digital photo processing (and photography for that record). I already know that the RAW file is a dump of raw sensor data with no processing whatsoever applied to it. My ...
Janos Pasztor's user avatar
46 votes
8 answers
2k views

Is switching to DNG worthwhile?

I'm aware of the difference between RAW and DNG file formats. The RAW format is proprietary to the camera manufacturer while DNG is an open standard. DNG files can be compressed without loss of detail,...
Grant Palin's user avatar
  • 3,109
25 votes
7 answers
26k views

What, if anything, does "RAW" stand for?

I understand that RAW files contain data straight from the sensor, that they're used as input to the production process that results in a final image, and that RAW isn't really one format but a ...
Caleb's user avatar
  • 31.7k
24 votes
11 answers
27k views

How to delete JPG files, but only if the matching RAW file exists?

My early (Canon G2) photos are all JPG, but when I got my Nikon D90 I initially shot in JPG, then switched to RAW+JPG, and now I would like to switch to RAW only. I have literally thousands of photos ...
seanmc's user avatar
  • 5,095
24 votes
2 answers
3k views

Will I lose image quality by adjusting white balance in post processing?

I understand that if I shoot in RAW, post processing software like Lightroom is capable of adjusting colour temperature and tint to my desire. Will I lose any image quality in process? Or is it as ...
Trav L's user avatar
  • 916
21 votes
3 answers
28k views

Do different "Picture styles" affect RAW output?

I was reading again the manual of my camera (Canon 50D, but I am sure that each DSLR offer the same kind of functionality, albeit I don't know the exact names adopted) and noticed the issue of Picture ...
Francesco's user avatar
  • 4,079
13 votes
1 answer
2k views

What camera settings may affect a RAW photo?

I know this is too general question, but I'll give it a try.. About an hour research in photo.SE, I found some question, that are related to this one: Does the camera white balance setting affect ...
Kiril Kirov's user avatar
  • 1,335
13 votes
5 answers
8k views

Can I save the JPEG preview image that's generated in-camera when I shoot in RAW-only mode?

When you're shooting in RAW-only mode (not RAW+JPG), most (all?) cameras also generate a JPEG preview using the current style settings. This is what you see momentarily when you first import the image ...
Mark Whitaker's user avatar
5 votes
2 answers
12k views

Why do RAW images in Darktable have a lot of noise?

I installed the latest version of Darktable from the Ubuntu PPA from their homepage (1.6.8). When I import RAW ges from a folder they all seem to have a lot of noise. I opened the exact same images ...
Martin's user avatar
  • 153
3 votes
4 answers
5k views

RAW to TIFF or PSD 16bit loses color depth

I was under the impression 16 bits would keep the same depth. But for my great shock I have noticed that there is a considerable lost of depth. Testing with a Canon Mark II raw and using both ...
Vic Sha's user avatar
  • 39
2 votes
5 answers
804 views

Why and how capturing RAW image instead of JPEG helps with editing [duplicate]

Often I heard photographers say that RAW is used for editing photos. I have used Adobe Photoshop Lightroom before and I don't see how capturing RAW helps. Can anyone explain how capturing RAW helps ...
nightgaunt's user avatar
0 votes
2 answers
10k views

Why are my RAW images corrupt but the previews okay? [duplicate]

So I shot photos for my robotics team at an event this weekend and ~95% of them are corrupt. The JPG previews from the camera are fine, but when Adobe Bridge generates its own preview, the corruption ...
danielcg's user avatar
  • 103
49 votes
8 answers
18k views

Why do we use RGB instead of wavelengths to represent colours?

As we know, the colour of a particular beam of light depends on its frequency (or wavelength). Also, isn't that the information which is first captured by digital cameras? Then, why do we use formats ...
user avatar
25 votes
7 answers
16k views

Does the camera white balance setting affect the raw image at all?

Does a DSLR's white balance setting (whether a preset like cloudy or a custom WB setting) affect the raw file at all, or does that setting only determine the WB of the JPG that the camera generates? ...
jfklein13's user avatar
  • 3,872

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