Train to nowhere

by Jorge Córdoba

submit your photo


Hall of Fame
View past winners from this year

Please participate in Meta
and help us grow.

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 ...
11
votes
2answers
1k 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?
6
votes
2answers
963 views

Can I use lens brand X on interchangeable lens camera brand Y?

I've got some lenses of brand X, but I've just got a new camera of brand Y. How can I tell if it's possible to use my lenses on my camera? I accept that I may lose a lot of automatic functionality ...
1
vote
3answers
6k 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?
8
votes
4answers
831 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 ...
7
votes
3answers
3k views

What does an expensive flash unit buy over a cheap one?

General question: What will I get from an expensive flash unit, that I can't get from a cheap one? Specific example: The $250 Canon Speedlite 430EX II vs. the $50 Neewer TT560. To my naive eye, 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 ...
43
votes
16answers
3k 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 ...
29
votes
6answers
17k views

How do I capture the milky way?

Can the milky way actually be photographed like this? I know the image is manipulated, and is probably a composite, but how do you capture such contrast in the milky way? Is an equitorially mounted ...
42
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 ...
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
18k 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
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 ...
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 ...
41
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 ...
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
22k 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
4k 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: ...
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?
27
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 ...
26
votes
8answers
12k 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 ...
23
votes
11answers
3k views

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

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 ...
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
7k 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 ...
14
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 ...
33
votes
5answers
6k views

How do constant aperture 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 ...
22
votes
4answers
10k views

Why does my Lightroom/Photoshop preview change after loading?

Everybody who is using Lightroom probably has seen this: You have imported RAW files. Lightroom shows a preview, but contrast and color of the preview change after a few short seconds to a slightly ...
15
votes
6answers
4k views

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 ...
18
votes
5answers
3k views

Is it worth it to have the 50mm f/1.8 Canon lens?

Is it really useful to have a fast prime lens for portrait photography, considering a low budget? If it is, what about the Canon EF 50mm F1.8 II? I have an entry level 18-55mm lens and a Canon 20D. ...
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?
11
votes
6answers
6k views

What focal length lens do I need for photographing the moon?

I would like to know whether it is possible to photograph moon without any flaws with a canon EOS 550d.. Also to get an image of the moon as close as the following image, what kind of ...
8
votes
3answers
1k 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
4answers
3k 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 ...
6
votes
7answers
6k views

How can I visualize or simulate the effect of different focal lengths?

I have seen many camera review sites illustrate the effect of using different focal lengths on the same photograph using frames. There are also similar illustrations to compare different sensors (full ...

15 30 50 per page