Linked Questions

107
votes
5answers
7k 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, ...
92
votes
4answers
15k 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?
30
votes
5answers
31k 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 ...
30
votes
3answers
58k 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 ...
23
votes
4answers
6k views

Why should my last post-processing step be sharpening?

I've seen a number of people recommend that you apply sharpening as the last step in post-processing, and some seem to imply you should always do that. Why? I tend to discard pictures that either are ...
8
votes
9answers
7k 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, ...
13
votes
4answers
12k views

Why is a physical anti-aliasing filter still needed on modern DSLRs?

I understand the purpose of the anti-aliasing (AA) filter is to prevent moire. When digital cameras first emerged an AA filter was necessary to creat enough blur to prevent moire patterns. At that ...
20
votes
3answers
3k views

Why don't mainstream sensors use CYM filters instead of RGB?

From what I understand most digital cameras have a sensor where each pixel-sensor has three sub-sensors, each one with an R,G and B filter. RGB is obviously the more fundamental colour model since it ...
18
votes
3answers
6k 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 ...
11
votes
3answers
2k 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 ...
5
votes
6answers
2k views

Why is Lightroom changing all the settings on my imported RAWs?

I'm importing pictures into Lightroom, and the NEF files look great at first glance when imported into Lightroom, but in a while the program changes all my pictures to super bright and just awful ...
5
votes
3answers
3k views

Can all colors be described with RGB?

If one could pick ideal sensitivities for the RGB filters of a camera sensor, would it be possible to capture any color as humans see it?
0
votes
2answers
687 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 ...
2
votes
1answer
5k views

How can I fix an out of focus photo? Is there an app for that? I don't have Photoshop [duplicate]

Someone else took this picture of me and didn't focus. :( How can I fix this? Is there an app for that? I don't have Photoshop.
2
votes
3answers
520 views

What is white balance in a camera? When and where should I use WB? [duplicate]

I like to do different experiments in my photography. Recently I was experimenting with white balance. Can anyone help me? What is actually white balance and when it is used? Do you have an example?