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1500 questions
19
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11 answers

What is the best background color to use when displaying images?

A group of people and I are creating scientific posters for a conference. The posters will be displaying multiple 5x7 photos. There is minimal text on the poster. With that being said, what background color should be used for the poster? We want…
Wiskin
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4 answers

Does a bigger aperture create better photos?

I have observed that the wider the aperture, the more expensive the lenses are. However, I would like to know whether it really makes a difference in your photos or not?
Anil Namde
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4 answers

How to auto-align a stack of head shots?

I am working on my own "everyday face" project - taking pictures of myself to combine them in a sequence afterwards. I'm wondering what is the easiest and fastest way to align all pictures so my eyes would be in the exactly the same position for…
user40
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6 answers

How does "sweep panorama" compare to traditional montage?

Newer Sony cameras offer "sweep panorama" mode where you just pan the camera and it stitches the panorama picture in the camera. This function is starting to appear in models from other manufacturers too (can't find the relevant link at the…
gabr
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19
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8 answers

Is it bad to mimic other photographers to compensate the lack of one's creative skills?

From the technical side I consider myself as a good amateur photographer, but what totally bothers me is that I am not creative, on the contrary. Since five years ago when I started with photography as a hobby, I don't think that I have came up with…
user26804
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19
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10 answers

Do DSLRs play games with ISO when used with fast lenses?

This article at Luminous Landscape claims that Nikon, Canon, and Sony silently boost ISO when their cameras are used with very fast lenses (f/1.2 and f/1.4 principally), the implications being that (a) you may as well use a slower lens and increase…
Reid
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2 answers

How iPhone 5S can have such a big aperture? f/2.2?

I thought that in order to have a big aperture such as f/2.2 a big amount of light should be able to enter to the sensor and in order to do it, a big lens was needed. How is it possible that in the iPhone 5S, which has such a small camera lens, the…
Steve
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19
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9 answers

What features differentiate Nikkor and Tamron/Sigma lenses?

I'm wondering if anyone has an opinion about Nikkor vs. Tamron and/or Sigma lenses. Is it worth the extra money to purchase Nikkor lenses? I haven't had the chance to compare these. Are the Nikkor lenses sharper? If you think Tamron and/or Sigma…
user1844
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19
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3 answers

What makes a camera 'weather sealed'?

What is the structural and mechanical differences between a weather sealed body and a non weather sealed body? Is weather sealing still effective if the lens isn't weather sealed?
James
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3 answers

What's the difference between Canon's silent and non-silent shooting?

I'm using a Canon 5D MkIII and I've been exceptionally pleased with the results of the 'new' single/continuous silent shooting functionality. I'd like to know what the difference between silent and non-silent shooting is. Does it affect image…
NULLZ
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4 answers

Is there construction-agnostic term for a lens with a long focal length?

Turns out that telephoto refers to a specific construction of a long-focal-length lens, i.e., one where the lens is physically shorter than the focal length. Is there a generic term for referring to lenses of long focal length, while being agnostic…
Reid
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11 answers

Is there a camera bag with extra space that I use as an airplane carry-on?

I have a Lowepro Slingshot 200 sling bag that I use to carry my Canon Rebel XSi with two zoom lenses. I love the bag for day trips, but it doesn't work so well for airplane trips or anytime when I need to carry the camera gear and anything…
user677
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4 answers

Why is my far away background in focus even with a low aperture number?

I took a picture of my son in an elementary school cafeteria. The room was very well lit and the parameters of the shot were Canon T3, 18mm, F/3.5, 1/125, ISO 100. I was close to him and his head basically filled the frame. He was about 20 feet…
Chuck C.
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2 answers

Does a specific f number across all lenses denote same amount of light?

When we say a light source emits 1500 lumens of light, it does not really matter if the light source is incandescent, CFL, diode etc. Similarly, when I say f/1.8 can I assume that all lenses pass the same amount of light at that f stop? If I am…
Regmi
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2 answers

Clipped bokeh circles at max aperture with wide aperture, short focal length lenses

I recently purchased a Sigma 30mm f/1.4 lens for my Canon 450D and noticed soon that at least wide open, any bokeh circles in the lower half of an image (in landscape orientation) seem to have their topmost part cut off. The upper half seems to be…
JohannesD
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