Lightnings taking a ride

by ceinmart

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32
votes
8answers
7k views

Can I publish photos taken in public legally?

Who actually owns a photo that is taken in a public place?
26
votes
4answers
875 views

What are Color Profiles and where would I find information on using them properly?

I see the term "Color Profile" a lot and I have this vague idea that it helps you adjust color values based on the unique differences of both cameras, displays and printers from some ideal device. ...
14
votes
4answers
6k views

How does changing focal length affect depth of field?

I'm curious about how my "area of acceptable focus" changes when the focal length of the lens I'm using changes as I zoom (or switch lenses). In particular, I'd like to know how the front & back ...
30
votes
5answers
69k views

How many actuations are “too many actuations”?

When looking at used camera bodies, a question that comes up a lot, is "how many shutter actuations, or clicks, does it have?" What I am wondering is, how many is too many. In other words, is there ...
32
votes
3answers
1k views

What should one consider when choosing a style of tripod head?

What should one consider when choosing a style of tripod head? There are ball heads, 3-way pan/tilt heads, geared heads, even gimbal heads. I'm not asking so much about brands, but styles... how ...
28
votes
3answers
14k views

How can I calculate what the effect of an extension tube will be?

There must be a mathematical description of the difference that an extension tube makes to a lens -- is it something that can be easily described? (For example, with teleconverters you can say things ...
18
votes
4answers
11k 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 ...
21
votes
4answers
7k views

How do you use a gray card?

There are already two questions on how to make a gray card, but unfortunately my ignorance goes deeper than that. How do you use a gray card?
27
votes
8answers
3k views

What is the advantage to back-button autofocus?

I've heard some advanced photographers talk about using back-button autofocus. As I understand it, this involves changing one of the camera's custom setting to engage the AF when a button on the rear ...
26
votes
6answers
4k views

Why are some lens hoods petal shaped and others not?

I have one lens hood for a 28-105mm lens that is petal shaped. I have another lens hood for a 50mm lens that is fully round. If the purpose of the lens hood is to block stray light, then wouldn't ...
14
votes
2answers
19k views

What does DPI mean?

What does DPI mean and how does it affect images displayed on screen versus printed?
38
votes
5answers
9k views

What's the difference between CCD and CMOS image sensors?

I keep reading articles about CCD vs CMOS image sensors. What is the difference between these two types? What exactly do these sensors do in terms of photography? Is a CCD-based camera going to be ...
36
votes
4answers
3k views

Should I get DX for my APS-C camera, or FX lenses in case I upgrade to full-frame in the future?

I recently bought a Nikon D90 camera body, which has a "DX" APS-C-sized sensor.. Within the same budget, should I go with DX lenses or should I get full frame lenses in case I upgrade to a full frame ...
25
votes
4answers
3k views

Do I lose anything converting to DNG?

I'd like to convert all my ARW (Sony) files to DNG for several reasons, but the only thing keeping me back from doing it is the fear of losing useful metadata during the conversion. I know that the ...
11
votes
2answers
2k views

What software shows the most accurate version of a photograph for web viewing?

I have a photo (photo_A.jpg), taken on a post-sunset beach, for which I want to reduce some noise. I do so using the luminance noise reduction technique from Adobe Camera Raw, open the image in ...
10
votes
3answers
16k views

Are Canon EOS and Nikon DSLR lenses interchangeable?

Can we use the lenses from, say a Canon EOS 550D kit (Canon EF-S 18-55mm) with a Nikon DSLR D5000 for example) ? Also, is the reverse possible ? I'm looking at interchangeability between recent DSLR ...
8
votes
2answers
4k views

What DPI should I resize my image to for best printing quality?

And my apologies if this sounds a bit too basic but I can't get my head around this. I have a digital image I took with my camera. 4000x3000 pixels, and GIMP claims that its resolution is 72x72 DPI. ...
7
votes
3answers
3k 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?
5
votes
2answers
2k 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? ...
3
votes
4answers
1k views

How do I make the water silky in water/beach photography?

I see beautiful photos of beaches or rivers/streams where the water looks like frosted glass... How is this effect achieved? Is it a longer exposure?
8
votes
10answers
12k views

How do you avoid a dim portrait with a bright background and no external flash?

I took a picture once in a beautiful location with an awesome background, and a cool location to get the shot. The problem is, the location of the subject had substantially less light then the ...
6
votes
5answers
2k views

What are the tradeoffs when replacing two zoom lenses with a superzoom?

I have two lens currently for my camera. An AF-S DX VR NIKKOR 18-55mm f/3.5-5.6G (kit lens) and a AF-S DX VR Zoom-NIKKOR 55-200mm f/4-5.6G IF-ED lens. I have found that there are cases when the ...
1
vote
2answers
7k views

Canon 75-300mm f4-5.6 USM or 55-250mm f4-5.6 IS lens?

I am getting a deal on a Canon T3 cam with 18-55mm kit lens and I have choice of one extra lens: 75-300mm f4-5.6 and 55-250mm f4-5.6. I generally like to shoot street, abstract and nature photos and ...
42
votes
16answers
4k views

Can anyone suggest books/resources on the artistic side of photography?

I am a relatively new photographer. I have no problem understanding the technical side of photography (I am an engineer by trade), but I do struggle with the more 'artistic' side of photography ...
48
votes
4answers
4k views

What is Ansel Adams' “Zone System”?

I've heard much of Ansel Adams' Zone system, but I've never quite understood it. What is it, how and where is it used, and is it still useful with modern (digital) cameras? Thanks!
40
votes
4answers
19k 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 ...
39
votes
13answers
10k views

Any good tutorials for learning how to post-process images?

I don't really know where to start with post-processing my images. I normally just straighten, crop and sharpen. Do people know of any good resources on the internet for getting a grip with Photoshop ...
39
votes
13answers
4k views

What are the must-have filters for a new photographer?

What filters are good and why?
31
votes
6answers
9k views

What software can show my most frequently used focal length?

Many people recommend a focal length of 35mm, 50mm, and sometimes even 85mm and upwards for those interested in purchasing a prime lens. I, however, would like to figure out what focal length(s) I use ...
42
votes
6answers
16k views

Why do light sources appear as stars sometimes?

See for example this photo: From my experience, the longer the exposure the stronger can this effect be observed. Is this correct? Are there any other factors that influence the creation of these ...
26
votes
12answers
5k 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
10answers
2k views

What attributes should I look for when buying batteries for a flash?

I want to buy some more rechargable batteries (AAs) for my flashes. I suppose I mainly care about: - Quick recycling of the flash - Hold their charge when not in use Although bonuses for: - Long ...
41
votes
2answers
23k views

What is tone mapping? How does it relate to HDR?

Whenever I read / hear about HDR (High Dynamic Range) photography, someone usually says something along the lines of "Actually, you're talking about tone mapping, not HDR." Please can someone ...
30
votes
2answers
5k views

What is “bokeh panorama” (also called the “Brenizer method”)?

Somewhere I don't remember, I heard about the Brenizer method. After reading a few sites, there is no consistent information about what it is exactly, or what the procedures are to apply it, so: ...
26
votes
13answers
3k views

Are DSLRs a dying breed, making now the time to switch to a mirrorless camera system? [closed]

I came across this thought provoking article on Stuck in Customs today that makes a strong case to hold off too much investment in DSLR gear, and instead switch to mirror-less cameras like the Sony ...
23
votes
5answers
2k views

What are the best practices for DOF stacking?

What are the best practices for DOF stacking? How do you get the frames with focus just right amount apart? How do you stack them in post processing?
22
votes
3answers
7k views

What is Universal White Balance (UniWB)?

How and in what kind of situations should it be used?
18
votes
2answers
3k views

How do I use Graduated Neutral Density filters?

I want to improve my photos of landscapes with high contrast (sunset/sunrise). What are good selections for GND filters and what are some techniques for using them correctly?
20
votes
4answers
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 ...
17
votes
2answers
1k views

How do lens lineups vary across Mirrorless camera systems?

We often hear advice like ""choose your lenses and then choose the body that matches". We have great information on DSLR systems at How much do lens lineups vary across DSLR platforms?, but what about ...
19
votes
4answers
3k views

Why should my last post-processing step be sharpening?

I've seen a number of people recommend that you apply sharpening as the last step in post-processing, and some seem to imply you should always do that. Why? I tend to discard pictures that either are ...
12
votes
12answers
2k views

Which DSLR brand should I pick as a beginning photographer?

I'm planning on starting photography as a hobby and I will be purchasing a DSLR very soon. Many of my friends have upgraded to DSLRs from P&Ss nowadays, but they all use different brands. Most ...
25
votes
10answers
8k views

What settings should I be using to photograph fireworks?

As it's heading into firework season (with Thanksgiving, Guy Fawkes, and New Years), I've never been particularly successful at photographing fireworks. In previous years I think I've always had too ...
21
votes
5answers
2k views

How do I get started with RAW photography?

Having read about the benefits of shooting in RAW as opposed to JPEG (for example this question), I'd like to have a go with it myself. However, I'm not really sure how to go about it. I can turn RAW ...
17
votes
3answers
2k views

What makes a camera an “SLR”?

My question, specifically: why is the Fujifilm HS 10 not an SLR?
15
votes
4answers
4k views

How can I simulate a long exposure photo using a set of shorter exposure photos?

I'm shooting towards the sky to capture the stars. The exposure time is 15 seconds, so I can see the stars still, without a trace. These photos are taken continuously one after the other, because I ...
15
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 ...
17
votes
13answers
3k views

What is a good two lens “starter kit”?

A friend of mine is buying his first DSLR. He's chosen an entry-level Canon model, and wants to know which lens he should go for. My advice is to go for a good 70mm prime and an 18-200mm. The former ...
13
votes
1answer
1k views

What are the best practices for taking pictures of a canvas?

Please share your experience about: Lighting Objectives Setup Colorimetry Photo-Editing ...
10
votes
2answers
3k views

What are the technical advantages and disadvantages of mirrorless?

The main doubt one can have about mirrorless is, I think that they do not provide ttl viewfinder. Is this a big disadvantage? In what way is it worst (or best) than classical reflex system? What are ...

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