Photography Stack Exchange
Photography Stack Exchange

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1500 questions
22
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4 answers

What types of filters are there and what's their use?

I have basic idea of what a filter is and what it is used for. I would like to know what are the different types of filters are available and if possible would love to have the following questions answered for each of them: Mostly used for 'X'…
readdear
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4 answers

What exactly does Tone Curve do in Lightroom?

In simple terms, what does Tone Curve in LR actually do?. I can see the results of changing Tone Curve by playing around with it, but I don't really understand scientifically what it actually does. I read a few documents on it, including one from…
rabbid
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5 answers

How can I upscale a low-res image to make it appear higher-res?

I want to enlarge an image to a bigger size. This will cause pixelation. So I want to apply some treatment to it in Photoshop that will suppress some of this pixelation. Of course I cannot generate new pixel information, only smoothen it etc. so…
Abhranil Das
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22
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3 answers

How to capture detail of craters on the moon?

How can I photograph the moon so that I see detail of the craters and mountains? I have a Canon EOS 550D (T2i) and tried "No Flash", "P" as well as creative auto mode, but to no avail. Every time I get a completely white moon. Moon Shot
Incognito
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4 answers

When is it OK to place the subject in the middle of a picture?

When is it OK to place the subject in the middle of a picture? I took this picture and feel very compelled to put the subject in the centre rather than on the sides.
Viv
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22
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9 answers

Is the iPhone 4S camera good enough to serve as one's "everyday-carry"?

I'd like to have a camera with me at all times, but my DSLR is often too bulky. For some time now, I have tried cell phones as a compact camera substitutes, but with limited success. Often, the picture quality was dismal and the setup/app loading…
Jan
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22
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7 answers

What megapixel value is equivalent to which ISO film?

Is there some kind of equivalency table or formula that expresses what kind of pixels you need in a digital camera to have roughly the same quality as a particular ISO graded film? What other variables would influence this (focal-length, exposure…
txwikinger
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2 answers

What are the advantages or disadvantages of a back illuminated CMOS sensor?

The iPhone 4s uses a backlit CMOS sensor, and I have noticed that some other point and shoot cameras do as well. What does that mean for photography, and if it is a benefit why do DSLR cameras not use it? Also terms I found: Backlit,…
dpollitt
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3 answers

How do color spaces like sRGB and Adobe RGB overlap?

Is sRGB included in Adobe RGB, and Adobe RGB included in ProPhoto RGB? Meaning that a photo in a "lower space" will look like exactly the same in a "higher space", e.g. a sRGB photo will look like exactly the same in a Adobe RGB space. I noticed the…
Julio Guerra
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4 answers

What are good advanced books on the physics and science of photography?

I am looking for books about the physics of DSLR, including modern photography optics and sensor electronics. If I already have some books on optics and electronics, I have found fairly hard to find good resource for these fields taking photography…
drolex
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22
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2 answers

Why do zoom lenses and compact cameras have varied maximum aperture across the zoom range?

Why does a camera's maximum (allowed) aperture get smaller when you increase its zoom?
William C
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22
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2 answers

What are the basic workings of the Lytro light-field camera?

lytro.com describes their new light field camera as being able to capture the entire light field, rather than just one plane of light, thereby allowing for a whole new set of post-processing possibilities, including focus and perspective…
Chris Noe
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22
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9 answers

What is the difference between using an ND filter versus 2 polarizers?

I know what an ND filter does. I know what a polarizer does. I also know what two polarizers stacked together and rotated properly do. So the question: why should I use an ND filter to achieve a darker image at the input, when I can use 2 polarizers…
Frantisek
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3 answers

Why can I see through this astronaut on the Apollo 11 footage?

I’m not sure if this is the correct place to put this but I’d assume it’s a photography thing. In this video When Aldrin is climbing down the ladder of the lander I can see the horizon through him. Why is this? I’d also like to add that this is not…
Beans
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3 answers

Could someone help me identify what this piece of film might be used for

I worked at NASA for a number of years. This item was thrown away when NASA closed a photolab facility in the late 80's. I believe it's a piece of film showing the iconic "Blue Marble" image taken from Apollo 17 on Dec. 7th 1972. The image is in…
Barron
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