Linked Questions

25 votes
10 answers

What makes a DSLR better than a Point & Shoot?

Why should I put up with the inconvenience of lugging around a DSLR? They look cool, but is there more substance to it?
mmccoo's user avatar
  • 1,123
29 votes
9 answers

Why don't cameras capture dynamic range as our eyes do?

When sitting in a room with no lights on, and I look out the window, I can easily see the interior of the room even if I focus on a tree outside. Why can a camera not capture a similar image to what ...
LifeH2O's user avatar
  • 411
51 votes
3 answers

What image-quality characteristics make a lens good or bad?

When reading lens reviews on the Internet, I often find subjective statements about the image quality that a lens produces, such as "good contrast" or "sharp". The problem is that I don't think I am ...
Caetano Sauer's user avatar
27 votes
6 answers

What are jpeg artifacts and what can be done about them?

I know JPEG is a "lossy" compression algorithm that discards information in order to save space. What is the visual impact of this? I've heard of "JPEG artifacts". What do these look like? Are there ...
mattdm's user avatar
  • 143k
22 votes
5 answers

What is dynamic range and how is it important in photography?

Wikipedia says that the dynamic range is the "ratio between the largest and smallest possible values of a changeable quantity". Ok, I get that. I suppose that's why HDR photos have a "high dynamic ...
Tom's user avatar
  • 3,149
21 votes
4 answers

What is Chromatic Aberration?

What is Chromatic Aberration? Is it a physical part of the lens, or just an optical illusion?
WireGuy's user avatar
  • 1,489
32 votes
2 answers

What is noise in a digital photograph?

What kinds of effects are present in digital images that are referred to as "noise"? What are the different sources of noise? What causes each type of noise? What are the characteristics of the ...
Martin's user avatar
  • 642
7 votes
3 answers

Lens with small scratches on the front element - how do they affect IQ?

I am looking to buy a CANON 28mm 1.8 EF lens. I found an offer, significantly discounted, of a lens with small scratches on the front element. The offer is very tempting. Here is a photo posted by ...
Jakub Kaleta's user avatar
3 votes
6 answers

Is there an IQ gain from Canon's 18-135 to 24-105L?

Just got a Canon 40D body, and was about to get Canon's 24-105L lens. I hear people raving about the lens, and it all made sense until I saw a Cameralabs' review of the lens. So don’t buy the EF 24-...
roman m's user avatar
  • 537
2 votes
5 answers

is the Nikon 35mm f/1.8 worth it after i have the kit lenses? [duplicate]

I have a Nikon DX (D5100) camera with the two most basic kit lenses: 18-55mm f/3.5-5.6 VR and 55-200mm f/4-5.6 VR. These two lenses cover lots of scenarios, but I'm starting to believe there is more ...
fejesjoco's user avatar
  • 253
4 votes
5 answers

Can high/fast shutter speeds have negative IQ results?

I have a Canon 600D with a Canon 70-200 f/4 L lens. I mostly shoot during the day, in bright daylight, and I love sharp images of people with a blurry background. Now to achieve that, I keep my ...
Tindra's user avatar
  • 812
6 votes
5 answers

What's the difference between vignetting and pinhole?

Sometimes people say that a lens has bad vignetting but it looks very similar to the effect of pinhole (darkened edges). What's the difference? If someone asked to have a vignetting effect (in PP) ...
BBking's user avatar
  • 2,765
7 votes
3 answers

Is pincushion or barrel distortion really all that bad in a lens?

Given that software can pretty trivially fix pincushion and barrel distortion patterns if you're shooting in RAW (Lightroom did the right thing just by knowing what lens I used with the given EXIF ...
Billy ONeal's user avatar
  • 3,340
10 votes
4 answers

What workflow will preserve color accuracy?

My current workflow as regards color spaces is this: Shoot in Adobe98 colorspace in RAW. Process on a calibrated Mac monitor (I believe that the gamma is 2.2) using Lightroom Produce jpgs in sRGB for ...
mmr's user avatar
  • 5,189
5 votes
1 answer

How does in-camera noise reduction compare to software one?

Does programmatically reducing noise reduction the give the same results as hardware post processing in camera, such as on a Nikon D90? What is the best software to do such things (like Photomatix ...
garik's user avatar
  • 1,469

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