Spring 2012

Spring 2012
by ani

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18
votes
6answers
51k 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. ...
16
votes
5answers
7k 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 ...
30
votes
3answers
2k views

What is the difference between a linear and a circular polarizer?

When I bought my polarizer, a friend told me that I should get a circular one, because the linear ones can mess with the autofocus. Is this true? What should each be used for?
18
votes
3answers
714 views

What is Chromatic Aberration?

What is Chromatic Aberration? Is it a physical part of the lens, or just an optical illusion?
9
votes
7answers
47k 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 ...
18
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 ...
31
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 ...
23
votes
9answers
2k views

How to choose a lens for my first DSLR?

I am considering buying my first DSLR. How do I know whether I need a 18-200 lens, 17-85, or 18-55? Or something else?
18
votes
4answers
13k 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 ...
26
votes
11answers
1k views

What are considerations when choosing a DSLR brand?

Realizing that: no single brand or camera model is perfect, most DSLRs are "good enough" for most situations there is no single right answer to which camera should be purchased ...what are some ...
21
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 ...
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 ...
5
votes
2answers
5k 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
1k views

What is an ultra-wide lens?

What is the point at which a lens is considered "ultra-wide angle" vs just wide angle?
48
votes
23answers
8k 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 ...
62
votes
15answers
56k views

What tools are available for RAW image processing in Linux?

I have been taking photographs with RAW format. What tools are available for working with RAW under Linux?
48
votes
5answers
2k views

What should I look for in a monitor for photo processing?

What aspects should one keep in mind when choosing monitor for photo processing? What about color gamut, panel types, input types, requirements for video card, different gammas, refresh rate, angle of ...
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 ...
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 ...
29
votes
8answers
17k 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 ...
28
votes
7answers
10k 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 ...
22
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 ...
24
votes
10answers
5k 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 ...
23
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 ...
21
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 ...
16
votes
2answers
3k views

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?
8
votes
10answers
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 ...
9
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 ...
118
votes
42answers
8k views

What are your easiest photography beginner tips?

Over time, I've found there are a handful of really simple things that anyone can do to take better pictures. What are your favorites? Understand the basics of aperture, shutter speed, and ISO. ...
43
votes
4answers
24k 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 ...
28
votes
9answers
122k views

How do popular free RAW editor/converter compare to each other on Windows?

I'm looking for a free RAW editor/converter on Windows. Can you tell me some strong/weak points of them comparing with Capture NX and/or Adobe Photoshop Elements? RawTherapee PhotoFiltre Able RAWer ...
27
votes
8answers
4k views

How can I make extra money with photography?

I have photos in Getty Images, in Shutterstock, Imagekind and I recently added some to RedBubble, but I'm not having the expected results. Does anyone have some history of success selling photographs ...
45
votes
8answers
9k 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?
28
votes
5answers
5k views

What do Pentax, Sony, and Olympus DSLRs offer that differs from Canon and Nikon?

We have a question and answers outlining the significant differences between the "big two" DSLR brands. I'm interested in the other DSLR makers, and how the cameras they make compare in terms of ...
16
votes
8answers
5k views

How can I take crisp sharp shots without an expensive lens?

Recently I bought my first DSLR camera. It is a beginner's one, a Sony Alpha A230 kit. To tell the truth, my shots are no more crisp than those I used to take with my old point and shoot Nikon Coolpix....
24
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?
9
votes
3answers
3k views

How do I start with in-camera JPEG settings in Lightroom?

I'm a novice shooting in RAW and find that half the time my camera JPEG images come out better than my Lightroom tweaks to RAW files. So to give myself a better start I'd like to apply the JPEG ...
23
votes
2answers
3k views

Why use a small aperture when trying to see sensor dust?

Here and there I read of people who set their lens to a small aperture while testing their sensor cleanness, supposedly to get the best image of dust speckles. However, the image of the on-sensor dust ...
8
votes
1answer
693 views

What lens characteristics are important in star photography?

In optimal world I would buy a lens that is good in every way. But I'm on a budget and have to find a balance in quality and price. I'm looking for a lens for star photography, so in my case it will ...
25
votes
7answers
8k views

Is there a sane reason why ¹⁄₁₂₅ is not, instead, exactly half of ¹⁄₆₀?

Here are some common shutter speeds you will find on most DSLR cameras: 1⁄15, 1⁄30, 1⁄60, 1⁄125, 1⁄250, 1⁄500, 1⁄1000, 1⁄2000, 1⁄4000 As you move from left to right, or as you increase the shutter ...
9
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 ...
7
votes
3answers
5k views

What is the EV scale?

I have seen an "EV" (exposure value) scale that's sometimes used to express a camera's exposure settings, or scene brightness. How exactly does this scale work?
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 ...
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 ...
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 ...
13
votes
7answers
2k views

What are my best options for a tripod for up to $100?

I'm looking to buy a tripod + head (for my Canon 40D), but am not sure if I want to spend more than $100 on it. So can you suggest options for best tripods for $100 or less? Or, is it important to ...

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