Tagged Questions
9
votes
2answers
850 views
What is the meaning of W and T on a camera's zoom buttons?
On every conventional digital camera (excluding the models with detachable lenses), there are buttons to zoom in and out with W side and T side.
When you press W, the lens zooms out. The lens zooms ...
6
votes
2answers
786 views
How does a fly-by-wire focusing lens work?
I have learnt that fly-by-wire focusing is an electrical manual focusing system. But how does this focusing method work?
How do you manually focus with fly-by-wire?
What is the scope of this ...
4
votes
2answers
518 views
What is the difference between a point-and-shoot and a mirrorless?
Both point-and-shoot camera and mirrorless cameras seems to be mostly similar in the way they work.
So, What are the differences between a point and shoot and a mirrorless camera?
Is a mirrorless ...
0
votes
3answers
3k views
What is the relationship of aperture, focal length, and ISO in a SLR?
I was using Nikon digital camera, and recently bought a Canon 550D. I am totally new to SLR.
I am not familiar with SLR terms: Aperture, focal length and ISO, and their relation to one another.
What ...
12
votes
4answers
1k views
What is a normal lens?
I've heard people call 50mm lenses "normal lenses".
For a lens to be considered normal, does it have to be exactly 50mm or is there some leeway? Does the normal focal length depend on crop factor of ...
14
votes
6answers
2k views
What is one “stop”?
I always hear this term, e.g.,
I had to go down one stop
Increasing X by Y raises Z by one stop
I turned down the flash/the light two stops
This lens/sensor/strobe/Photoshop tweak raises X by ...
11
votes
4answers
2k views
Why are effective pixels greater than the actual resolution?
This page compares Canon EOS 550D and Canon EOS 500D cameras and mentions
18.7 million effective pixels
for 550D. However the best resolution possible using this camera is
5184 * 3456 = ...
13
votes
3answers
1k views
29
votes
7answers
6k views
What is aperture, and how does it affect my photographs?
How does aperture affect my photographs?
Why should I care about the aperture with which a photo was taken?
