Time to be with your loved ones

Time to be with loved ones

by sat

submit your photo


Hall of Fame
View past winners from this year

Please participate in Meta
and help us grow.

13
votes
4answers
3k 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 ...
12
votes
5answers
3k views

What workflow or tools can be used for tagging of a large number of running race photos?

Let's say you attend a marathon where participants wear bibs with their race number. You take hundreds or (cough) thousands of pictures and would like to upload them to share them (for free) with ...
17
votes
5answers
8k views

What is dynamic range and how is it important in photography?

I haven't seen an explanation on this site, and I think it is a good question to have here. Wikipedia says that the dynamic range is the "ratio between the largest and smallest possible values of a ...
17
votes
10answers
3k views

What is the 18% gray tone, and how do I make a 18% gray card in Photoshop?

I have heard about 18% gray tone — what is it really, and why 18% (and not 20% or some other value), and how can I make it in Photoshop?
16
votes
2answers
729 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 ...
8
votes
6answers
8k views

What is a good general purpose lens for Canon?

As an upgrade from kit lens 18-55mm, which would be a better general purpose lens? Obviously there is no "best" option, as everyone has a different budget and style, but what are the best options ...
25
votes
6answers
2k 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 ...
22
votes
9answers
2k 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 ...
18
votes
4answers
5k 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?
14
votes
4answers
3k 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 ...
23
votes
9answers
1k views
22
votes
3answers
2k views

What makes a strong wide-angle composition?

A simple, effective way to improve most compositions is to crop (or zoom) more tightly. Cut out the "distractions", and boom, powerful composition. I usually shoot with a slightly-long lens in the ...
20
votes
10answers
2k 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?
11
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 ...
40
votes
8answers
14k views

What does “expanded ISO” mean?

The ISO specification for the Canon EOS 7D reads as follows: High ISO For handheld shooting in low light, the EOS 7D offers ISO speeds of up to 6400. Expandable to ISO 12800, for low light ...
21
votes
3answers
4k views

What is 'freelensing'?

I've recently heard about a photographic technique called 'freelensing.' How do I go about 'freelensing,' and what can I do with the technique?
14
votes
6answers
2k 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 ...
10
votes
4answers
3k views

How do I easily remove an almost-white background?

I want a "product shot" style photo of several small objects without any background (pure white background). Knowing the hours of work involved in properly deep-etching, but not having nice lighting ...
15
votes
6answers
18k 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. ...
13
votes
2answers
2k 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
4answers
5k views

What does 'how much zoom' mean?

I have Canon 18-135 and 70-300 zoom lenses. People ask me how much zoom my camera supports. What am I supposed to tell them? "135 ÷ 18 = 7.5" and "300 ÷ 70 = 4.2"?
5
votes
7answers
4k 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 ...
17
votes
4answers
1k views

Does the dpi number reported by camera in JPG have any meaning?

I have two cameras, a 6mpix Panasonic FZ8, and 14mpix Canon A2200. When I compare shots from two cameras, one of differences I notice is dpi number that camera reports in JPG info: FZ8 reports ...
14
votes
3answers
2k views

What causes lens flare?

I heard a couple of years ago that only certain types of lens caused flare to appear, something related with the material and/or quality of the lens. Is this true? Which material/quality caused flare? ...
12
votes
6answers
2k 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 ...
9
votes
5answers
1k views

How can I approximate 'soft focus' digitally?

In a previous question about soft lenses, it was suggested that much of the current practices regarding soft focus involve selectively soft focusing certain parts of the image and mattdm suggests its ...
8
votes
9answers
1k views

How do I choose a point and shoot camera under $400?

I need a P&S camera for my family. They would probably use it for family functions,trips etc. I want a camera with flash for taking good night photos with a decent quality. They are not ...
1
vote
2answers
2k 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 ...
80
votes
11answers
3k views

How do I approach people for a natural look in street photography?

I am enjoying taking candid photos of people, but the subject is usually someone I know, or it is during some family/friend event, so after a while the people get used to the presence of the camera ...
49
votes
6answers
3k views

How do I get started in Astrophotography?

I have a Canon 20D. I'd love to take some photos of the moon and stars. How do I get started? I've search the web and the information is sparse and cryptic. I'd like to know what equipment is the ...
41
votes
24answers
3k views

What are good photography projects?

I am currently in the middle of a year long photo a day project, and am beginning to think about what I will do once this is done. What types of photography projects have you done? Please keep ...
39
votes
7answers
6k 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 ...
30
votes
3answers
2k views

Unsharp mask - what do the parameters do?

I'm interested in getting into post-processing stuff, and I'm wondering about the Unsharp Mask operation. Specifically, there are 3 parameters involved: amount radius threshold What do these do? ...
38
votes
13answers
6k 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 ...
33
votes
5answers
5k views

What should one look for when buying a used lens?

When buying a used lens, what should the buyer check? Other than looking for obvious physical damage on the outside of the lens, what else should be inspected to identify the condition or quality of ...
30
votes
6answers
1k views

What is the best technique for long-exposure photography in good light?

Can anyone offer any tips on achieving long exposures (with the intention of blurring water, clouds etc)?
54
votes
10answers
3k views

How can I get my portrait subjects to look natural and drop the cheesy smile?

I am surprised by how many people automatically put on a cheesy smile when I point a camera in their direction. Please share any tips / techniques / links that might help me get better, more ...
28
votes
6answers
2k views

How can knowledge of human perception of color be used in photography?

How does the human vision system perceive color, and how can/should this be taken into account when taking and post-processing photographs (both in color and in black and white)? The bit above is ...
61
votes
22answers
5k views

What kind of photography is still better done with film cameras?

Are there any kind of photography left today which digital cameras are still in the disadvantage to film cameras?
14
votes
10answers
25k views

Which prime lens for Pentax?

My girlfriend is buying a Pentax K-5 (I already have a Pentax DSLR so we thought it made sense for us to be able to share lenses), and she's not sure about which lens to get with it, so I've been ...
38
votes
6answers
2k views

Is crop-factor a bad thing?

It seems to me that there is a preference for full-frame sensors rather than cropped sensors, and I'm curious as to why. It seems to me, that the cropped sensor means that I get more bang for my buck ...
21
votes
3answers
6k views

What is Universal White Balance (UniWB)?

How and in what kind of situations should it be used?
13
votes
7answers
8k views

How do I properly do shadowless product photos?

My friend asked me to create a photo like this. I noticed that its shadowless and my first question is whether it was setup to be shadowless, or was it made shadowless in post? How many lights are ...
30
votes
8answers
6k views

What's the difference between Adobe RGB and sRGB and which should I set in my camera?

In my Canon 60D, there's a setting between Adobe RGB and sRGB. What's the difference and what should I prefer when shooting to RAW ?
23
votes
3answers
8k 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 ...
24
votes
10answers
3k 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 ...
18
votes
3answers
5k views

How does the human eye compare to modern cameras and lenses?

A goal in most photography is to present a scene which resembles what a person who had been there at that moment would have seen. Even when intentionally working outside of that, human vision is the ...
16
votes
2answers
4k views

What is T-number / T-stop?

Usually, when discussing aperture of a lens, F-stop and F-number are used for quantifying. But some photographers, and especially videographers, also mention T-stop. The concept and numbering used ...
12
votes
1answer
1k views

What are the differences between an entry-level DSLR and an advanced compact P&S camera?

A Canon Powershot series camera has shutter priority, aperture priority and complete manual mode that lets the user control the shutter speed and aperture Even though an Entry-level DSLR has more ...
12
votes
1answer
1k views

What is color temperature and how does it affect my photography?

I have seen color temperature mentioned with regard to white balance, mixing different sources of light, etc., but I haven't come across a clear explanation of what it means to talk about the ...

15 30 50 per page