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by Jakub

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

learn more… | top users | synonyms (1)

2
votes
7answers
8k 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 ...
40
votes
11answers
4k 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
votes
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
votes
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
202 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
335 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 ...
16
votes
4answers
5k 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 ...
24
votes
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
18k 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
490 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
3k 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 ...
23
votes
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 ...