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India Point Park
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57
votes
6answers
9k views

Why are wide-angle lenses so much more expensive?

What is it about wide-angle lenses that makes them so much more expensive than an equivalent-quality tele or prime lens? Take the Canon EF-S 10-22mm USM, for example. RRP is nearly £1,000! Are they ...
24
votes
3answers
3k views

What is the meaning of “white balance”?

I would like to understand the term white balance. My camera has settings for white balance with the following options: Auto white balance Daylight Cloudy Shade Flash Incandescent lights White set1 ...
16
votes
3answers
2k views

What is HDR photography?

What is HDR photography, and when might it be useful?
28
votes
13answers
4k views

What is the best way to clean the sensor on a digital SLR?

I've got a couple of spots of dust on the sensor of my Canon 20D - a rocket blower isn't shifting them, and I'm ridiculously scared of some of the more direct methods for cleaning sensors -- what ...
20
votes
4answers
4k views

What is a “fast” lens?

I've been reading lots of camera reviews lately and have ran across several references to "fast" lenses. What exactly is a fast lens and what are its advantages compared to other lenses?
22
votes
10answers
3k views

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?
18
votes
6answers
2k views

What are the limitations of a typical kit lens as a general purpose lens?

I have a Canon EOS 550d with the 18-55mm IS kit lens. I have done quite a bit of shooting with it over the last few months (portraits, nature, night shots etc), and find the image quality to be pretty ...
16
votes
6answers
45k views

How do I find the right size of filters for a lens?

I was looking to get a circular polarizing filter and an UV filter for my Canon 550D, 18-135mm lens. When I checked online I found these filters came in different sizes, like 62mm, 67mm, 72mm, 77mm. ...
11
votes
5answers
6k views

What is a rolling shutter? When do I have to be aware of it?

In answer to another question, Adam Davis writes: Your camera complicates this by using a rolling shutter above a given speed (usually around 1/200. This means that only a portion of the ...
7
votes
9answers
2k views

What macro techniques offer an alternative to expensive optics?

I was wondering what are the alternative macro techniques people use instead of buying expensive macro optics. I know about single lens reverse macro technique; what other alternative techniques allow ...
23
votes
5answers
4k views

Is there any practical difference between saving at 300ppi or 72ppi?

I often see statements in discussions about web displayed image quality that go something like this: "I only upload pictures at 72 dpi and 1200 pixels on the long edge, so if someone copies and prints ...
5
votes
2answers
3k views

How do zoom, magnification, and focal length relate?

Zoom lenses and cameras with superzooms are often sold with a times ("×") zoom number — like a 12x zoom or 30x zoom. The question How do I convert lens focal length (mm) to x-times optical zoom? ...
1
vote
3answers
7k views

How can this brightly colored yet gentle pastel-color effect be achieved?

I found this image on http://unsplash.com/ and quite a few have this vivid yet pastel effect. Can it be achieved in Photoshop or Lightroom?
17
votes
5answers
988 views

What is an ultra-wide lens?

What is the point at which a lens is considered "ultra-wide angle" vs just wide angle?
9
votes
7answers
40k views

Why is my Nikon 50mm f/1.8 giving me an fEE error?

I have a AF Nikkor 50mm f/1.8. When I have the aperture setting on the lens to 22 I can take photos. But when I change the dial to anything other than 22(lowest f/stop) then I get a flashing fEE ...
47
votes
23answers
7k views

What's a good strategy for choosing which photos to keep?

Since moving from a 6 megapixel DSLR to a 12.5 megapixel micro-four-thirds, the much bigger file sizes (especially shooting RAW) mean that I can't be so open about keeping everything I shoot. I only ...
29
votes
4answers
31k views

What is the “Rule of 600” in astrophotography?

This question mentions the "Rule of 600" for avoiding star-trails in astrophotography. What is this rule? How was it derived? How should it be applied?
31
votes
18answers
2k views

What software is focused on reviewing and organizing images?

If I wanted to just view, sort, and organize (via tags or folders or both), what programs are geared toward doing this quickly? I know I could do this in most any photo editor, but it's not ideal for ...
26
votes
7answers
9k views

What precautions should I take when taking a camera into humid conditions?

My camera's manual warns about sudden changes in temperature, but there are a few cases when I can't see how to avoid this. These include entering a reptile house in a zoo, or a trip to tropical ...
21
votes
5answers
1k views

What is ETTR (Expose To The Right)?

Picking up from this answer and this question, What exactly is ETTR? How it may reduce the image noise? And how is it difference from film to digital sensors? In the answer linked above, what are the ...
18
votes
4answers
12k views

How do camera body motors compare to in-lens motors for focusing?

What is the difference between using a motor on the camera body and the motor built into lenses? Aside from how both compare in terms of speed, what differences would I notice if I use a body with a ...
23
votes
9answers
4k views

How do I choose a polarizer?

It was suggested that I should get myself a polarizer filter to get over my reflection problem. ( How to avoid reflection when taking a picture of a ceramic object with a shiny glaze? ) I found out ...
22
votes
5answers
4k views

What is exposure compensation?

What does exposure compensation do? If I take a photo with a given shutter speed, aperature, and ISO, and then take the same shot with +1EV or -1EV, what is actually happening? Is this just a gain ...
34
votes
5answers
7k views

How do constant aperture zoom lenses work?

Cheaper zoom lenses usually are faster at the wide end and slower at the long end (for example, the $150 Canon EF-S 18-55mm f/3.5-5.6). More expensive constant-aperture zoom lenses have the same ...
20
votes
4answers
2k views

Does it give higher quality to shoot in low-res mode in-camera, or to downsize high-res photos later?

Suppose you want to store your photos at some lower resolution, let's say about ~1 MB large. You own a camera able to make photos at 5 MPix and more. And, you want to have the maximum quality at the ...
8
votes
3answers
2k views

What is the formula for percent of frame filled at a specific distance and focal length?

I am thinking about buying a new lens specifically to take photos of distant targets (birds, bears, etc). I currently own the Canon 70-300 IS USM, which is a nice lens, but I find that if I want to ...
20
votes
6answers
2k views

What exactly is flash sync speed, and should it be a factor in a buying decision?

What exactly is flash sync speed and should it be a factor in a buying decision?
4
votes
3answers
3k views

When do you need a model release?

Revised Question: After a bit of a think I realised that this question can also be asked the other way round and much more simply: In what situation(s) have you required a model release? Original ...
8
votes
4answers
1k views

Is it possible to take a long exposure photograph during daytime?

I would like to take a picture of a street during the day to depict how much traffic and cars there are on the street. Is there anyway to do this with a long exposure photograph? I have a Nikon D90 ...
42
votes
4answers
22k views

What apertures are required to enable autofocus, including cross-type or high-precision focusing, on Canon DSLR cameras?

This is a follow-up to Why does Canon and Nikon limit or disable autofocus beyond certain f-numbers? I'm doing this to separate the AF aperture requirements from the linked question above. My goal ...
30
votes
15answers
4k views

What options are there for good, cheap online backup of photos?

What is a good and cheap solution for online backup of over 100Gb, probably growing to 200+ in about a year, and then no doubt more after that. I am looking for something that can work in the ...
28
votes
12answers
6k views

How do you make the most stunning sunrise and sunset photos?

I've been lucky on a few occasions, but I often struggle with capturing awesome sunsets. What can I do to remove the element of luck and get more consistent results? Additionally, is it possible to ...
34
votes
5answers
6k views

In which situations should I use my circular polarizing filter?

I received a circular polarizing filter as a gift, but I have a hard time determining when I should be using it. I've done river shots with some success, but other than that, it doesn't seem to do ...
43
votes
8answers
8k views

Why is the 50mm prime lens the most standard?

Seems that most photographers choose the 50mm as their prime lens (at least from what I've read). I'm looking at getting a prime lens for my Nikon D3000 and the cost difference between the 35mm 1.8 ...
23
votes
16answers
2k views

What method is best to take backups of your digital photos?

What method do you recommend to take secure backups of your photos? I have used Carbonite.com for my family photos and videos - it is an online backup - just select folders to backup and the software ...
15
votes
8answers
3k views

How to start learning photography?

How to start learning photography?
17
votes
6answers
4k views

How do I prepare best for my first wedding photography event?

I am going to shoot a wedding this weekend, and I want to do my best for my friend's big day. What can I do to prepare for the day in order to minimize failures and mistakes? How do I avoid missing ...
28
votes
8answers
16k views

How to nail focus for DSLR astrophotography?

I've been doing a bit of astrophotography and the problem that I almost always have is nailing focus. I'll manually focus on a bright star or the moon (which hopefully isn't an option!) by magnifying ...
26
votes
8answers
2k views
22
votes
4answers
5k views

What is focal length and how does it affect my photos?

What is focal-length? Are focal-length and zoom synonymous? How does the focal length of a photo affect it?
19
votes
3answers
2k views

Do smaller apertures provide more depth of field past the diffraction limit, even if peak sharpness suffers?

In Understanding Exposure (3rd edition, on page 48), Bryan Peterson has what might be called a rant against modern on-line conventional wisdom about diffraction limits. Answers on this web site are ...
7
votes
4answers
4k views

How can I tell if a photo is real or faked?

How can I tell if a photo has been edited or manipulated? Are there techniques for distinguishing real photos from fakes? Are there software tools that can help? Are there things I can do in ...
14
votes
6answers
3k views

Is a UV Filter required/recommended for lens protection?

Is it still required/highly recommended that I buy a UV or similar filter to 'protect' the front element of my lens? I ask because this advice has been around for 30 years and you would think that ...
10
votes
2answers
4k views

How can a lens with a single focal length focus on more than one plane?

By definition, a prime lens is a fixed lens system with a fixed focal length. Then, simple physics tells us that it should be able to focus only on one plane (at a fixed distance) in front of it. But ...
10
votes
4answers
1k views

How to choose the correct exposure?

I have a Canon 60D that I use for my primary hobby that is photography, but sometimes the pictures that I took are with the incorrect exposure like this: So I want to know how I can choose the ...
6
votes
4answers
2k views

What are the Yongnuo flash naming conventions?

I'm trying to get an idea of which Yongnuo flash will fit my requirements. I'd like to have a flash to pair with my SB-900 with TTL support for use both on and off camera (Nikon CLS-compatible). My ...
5
votes
2answers
2k views

How can I calculate the effect of non-TTL flash on exposure?

I recently got an old Canon AE-1 film camera back in working order. I'd like to use my modern 430EXII Speedlight flash with it, however since there is no TTL metering, I have no idea how much the ...
43
votes
7answers
7k views

What is the best way to synchronize Adobe Lightroom databases between two computers?

What is the best way to synchronize Adobe Lightroom databases between two computers (a desktop and a laptop)? I'd like to be able to edit photos on either machine, and preferably not copy the whole ...
26
votes
4answers
67k views

How do I calculate the distance of an object in a photo?

If I took a picture of a windmill on the horizon — given that I know the sensor size and the focal length of the lens and other factors to do with the shot — could I calculate how far away an object ...
31
votes
14answers
26k views

How do Micro 4/3s cameras compare with DSLR cameras?

What are the major (and perhaps more subtle) differences between the newer Micro 4/3s format in comparison to the well-established DSLR cameras? What are the pros and cons of the Micro 4/3s format, ...

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