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Image quality describes how well a photograph matches a perceived technical ideal.

learn more… | top users | synonyms (1)

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5answers
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Can anyone recommend *freeware* to reduce motion blur by deconvolution?

Can anyone please recommend free (preferably also portable i.e. no need to install) software for Windows XP or later to improve image quality of large (12 megapixel) terrestrial (not astronomical) ...
8
votes
7answers
2k views

Photographic techniques to avoid chromatic aberration?

I've read several informations here on Photo SE, as well as the wikipedia article on CA. I understand that it is inevitable that some amount of chromatic aberration shows up for a particular lens, ...
7
votes
3answers
1k views

How can these photos have so high quality?

Today, I ended up in a site showing famous people faces in a very first plane. I just got impressed by the quality those photos had. What do you think are the factors you have to tweak to reach that ...
12
votes
1answer
1k views

Different versions of DIGIC processors, is there any difference in image quality?

While comparing the features of Canon 400D and 1000D, I've noticed that Canon 1000D has an improved DIGIC III processor, over the DIGIC II for Canon 400D. From Wikipedia: The DIGIC III Image ...
2
votes
2answers
6k views

How to improve quality of pictures that are already taken (if possible in GIMP)?

I'm not a photographer but a graphic designer. In GIMP, I only discovered two methods of improving the quality of an photo: Filters > Enhance > Unsharp Mask Noise > HSV Noise Basically, ...
2
votes
7answers
6k views

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 ...
39
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11answers
3k views

Should I keep Image Stabilization (IS) off when I do not actually need it?

I own a Canon 7D and a EF-S 15-85 IS lens and I keep the image stabilization turned on all the time. Recently, an experienced photographer told me that this is a huge mistake because it reduces image ...
12
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2answers
1k views

What is the best technology for large, permanent digital printing?

Few questions: What is the best printer/plotter for printing large format images (best means best visual quality) What material and inkjet is the most permanent? I'm thinking of printing images ...
6
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7answers
3k views

Are there websites which compare digital cameras based on technical image quality?

There are lot of sites, which compare digital cameras by parameters, user experience and etc. I looking for a website which has some kind of procedure to test image quality and compares digital ...
6
votes
2answers
175 views

Fisheye Image Quality: Improves with Price?

Using a little Opteka fish attachment, I've gotten some very cool shots. The problem is that all shots get, of course, progressively less sharp as you move out from the center. I know that this is to ...
4
votes
3answers
303 views

What feature in a digital camera do I want to give better quality pictures?

Five years ago I bought the Canon PowerShot S2 IS and loved the pictures it took. All pictures were very sharp and overall I was very happy with the camera. Last year I "upgraded" to the Panasonic ...
12
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4answers
4k 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 ...
22
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3answers
3k views

With all other things equal, in a DSLR, will a larger sensor produce a sharper image?

I asked a question a while ago here about the "sweet spot" of a lens, which led to a really interesting discussion of "sharpness", the physics of light, and general image quality. 1st Question In ...
18
votes
12answers
14k views

How does the lens diameter influence photo quality?

I have tested two different 50mm lenses in my camera. One was a Nikkor 50mm ∅52mm. The other one was a Sigma 50mm ∅72mm. I took some pictures with both lenses using the same setup for aperture and ...
16
votes
6answers
451 views

Are there any important considerations for stock photos?

I have quite a few photos, some of which I consider to be particularly good. I've been thinking of putting some up on stock photo sites (that's another discussion), but have been wondering about image ...
20
votes
8answers
2k views

How much “noise” is acceptable in a photograph?

I've been at photography for a little over a year, and I primarily do landscape and wildlife/bird photography. Most of my work has been a learning experience so far, with few shots actually something ...
1
vote
3answers
170 views

What are some good online forums for discussing photographic editing?

What are some good forums for talking about editing photos in Photoshop or GIMP? Where do you talk about such things? EDIT: Other than here, of course.
23
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18answers
2k views

What are some techniques for hand-held image stabilization?

My zoom lens (75-300mm) is fairly slow: 5.6 at its farthest point. (I think it's 3.5-5.6, and it's not image stabilizing. I'm on a budget, sadly!) Unfortunately, my primary use for it is hand-held ...