Linked Questions

2
votes
3answers
450 views

Are RAW images really RAW? [duplicate]

I am trying to find references on processing carried out inside the camera before the image is stored in RAW format. I am quite sure that some denoising is performed at the hardware level after the ...
0
votes
2answers
153 views

What exactly a Raw Image format encodes? [duplicate]

Ok, I have in mind that a picture P can be represented by a two dimensional matrix A where each element of A (aka every pixel) is a vector with four coordinates (Red,Green,Blue). What extra stuff is ...
0
votes
1answer
68 views

What would be the most technically unaltered/numerically close camera-to-monitor workflow using common software? [duplicate]

If the intention was to, as much as possible, shove the ADC output octets that were present in the camera right up the framebuffer and out the HDMI cable - possibly truncating LSBs, if possible ...
56
votes
7answers
24k views

Why are Red, Green, and Blue the primary colors of light?

Colors don't have to be a mixture of red, green, and blue because visible light can be any wavelengths in the 390nm-700nm range. Do primary colors really exist in the real world? Or did we select red, ...
24
votes
9answers
8k views

A camera that takes real photos without manipulation like old analog cameras

In modern digital cameras there are many settings which are applied automatically to the photos. And it does not always result in good ways. Recently I saw two photos of the same face one from a old ...
17
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 ...
10
votes
5answers
2k views

What *exactly* is white balance?

When setting a white balance configuration, we adjust the temperature and green-magenta shift to a wavelength-intensity distribution of light that correlates most closely with the actual distribution ...
3
votes
4answers
18k views

Does converting RAW files to TIFF lose image quality?

Before I found out about Camera Raw, I used to convert my photos from RAW to TIFF, using the XNVIEW convertor, downloaded from the Internet. My question is whether I lost image quality or anything ...
1
vote
3answers
3k views

How sharp are RAW photos before processing?

Are RAW images by nature slightly blurry prior to processing? If I open them up in Lightroom and zoom into the photo, my photos are not tack sharp but a bit blurry. Once I process, it comes out ...
2
votes
3answers
934 views

Why are all indoor pictures with my camera grainy?

I'm a beginner who just bought a Panasonic Lumix DC-FZ82 and expected better results than on my iPhone. I've consumed a bunch of how-to's and understand the basics of f-stops, ISO, shutter speed, etc....
3
votes
2answers
1k views

Why would a camera change colors on the image when producing JPEGs?

There's a room with windows closed by curtains, it's night outside and the only light source is a set of LED filament lamps inside the room. Lamps are designed to have 2200K color temperature to have "...
5
votes
2answers
754 views

How exactly is the deeper bit-depth of RAW mapped onto JPEG and the display?

I am trying to understand RAW better. I have a Canon EOS 20D, and shoot in RAW+Jpeg mode. According to the specs in the manual, the RAWs of the 20D are 12 Bit. I understand that this means each pixel ...
2
votes
2answers
1k views

Lumix G7: Raw photos only in 1920x1440, no higher res available

On a G7 I bought used the images come with a 4592x3448 resolution for JPEG and 1920x1440 for raw. When I switch the mode to RAW only, the resolution/image size option in the menu is greyed out. Is ...
1
vote
2answers
701 views

Why does the quality of photos shot in RAW change after a few seconds when viewing them on a computer?

I have been taking a photo class for the past month or so and the professor told us to shoot in raw for a few assignments. When I view the pictures shot in RAW (on a canon rebel t7) on my computer, ...
0
votes
4answers
855 views

photon counting with a DSLR

I'm quite new to photography, but was wondering what settings I should have in order to have a good approximation of the relative number of photons that creates each pixel? i.e. best settings such ...

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