Napioa - Wind Origins

Napioa - Wind Origins
by octopus                

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Apr
21
comment Can the sun damage the camera sensor? Under what conditions?
Why would the lens heat up? The light is focused through the lens onto the sensor. Besides, the purpose of a lens is to transmit as much light as possible.
Mar
27
comment So my iPhone 6 camera lens is as wide as my full frame 35mm DSLR lens?
A fine answer. Just want to point out that when you wrote "having a very wide field of view", it should read "depth of field".
Feb
26
comment Does it make sense to put an expensive lens on a cheap camera?
Np. Sorry I didn't intend to be mean. / That being said, there is some merit to matching good lenses with good bodies. I've seen expensive lenses that produce boring, flat images on older bodies like the Canon 20D, which has lower resolution and higher noise than current bodies. So as always, caveat emptor.
Feb
26
comment Does it make sense to put an expensive lens on a cheap camera?
I was referring to your last paragraph about body-to-lens price ratio: "My recommendation would be to bring the price multiplication factor a bit closer to the 2-3x range ..."
Feb
26
comment Does it make sense to put an expensive lens on a cheap camera?
@dpollitt I partially disagree with your answer. Speaking about the Canon DSLR ecosystem, there are a number of crop-sensor bodies with identical sensor resolution and noise level - for example 600D vs. 60D vs. 7D. In that situation, a more expensive body has faster autofocus and better "handling", but the image quality is still identical. So I would be cautious about the recommendation of blindly buying more expensive bodies to match more expensive lenses.
Feb
12
comment Why do electronic shutters expose row by row?
Indeed, global shutter is possible in CMOS sensors. However it requires transistors to be added, which reduces light-sensing area and increases complexity. See Wikipedia.
Feb
12
comment Why does it seem like large sensors are necessary for good low-light performance?
The second sentence should read: The F-number is the focal length divided by the diameter of the aperture. (Wikipedia)
Feb
11
comment Why are SLR mechanisms still prevalent among high-end digital cameras?
You are only half correct - the mirror and pentaprism are full resolution, but the ground glass focusing screen has a limited resolution. This impacts me in practice because when I do manual focus, I actually get more accurate results when using the LCD (without even zooming in) than through though the optical viewfinder.
Feb
10
comment Why are SLR mechanisms still prevalent among high-end digital cameras?
The point about the LCD image resolution is irrelevant, because on an SLR the optical focusing screen has a very limited resolution too.
Feb
10
comment Why are SLR mechanisms still prevalent among high-end digital cameras?
To add to your paragraph about the mirror box, the specialized autofocus sensors on SLR cameras are much faster and simpler (line sensor) than the autofocus mechanism on mirrorless cameras. This is why sports and action photographers use SLRs.
Feb
10
comment Why are SLR mechanisms still prevalent among high-end digital cameras?
When you wrote "point-and-shoot interchangeable lens cameras", the current preferred term is "mirrorless interchangeable lens cameras".
Dec
8
comment How long does Canon 7D mk II last in standby?
I can comment about the Canon 6D, which has GPS too. When GPS is disabled and the camera is left on standby, the battery will easily last 3 weeks or more.
Oct
13
comment Why isn't the LCD display on my Canon 750D flipping when I rotate it?
Try turning off your camera, removing the battery for an hour, and checking again. I suspect this won't solve the problem, so you probably have a hardware problem and need to go to a repair shop.
Sep
20
comment Is a mirrorless camera OK for macro photography?
All right. It's an excellent answer overall, and I like the specific lenses and flashes you listed as evidence for your arguments
Sep
20
comment What's wrong with the Canon EF-S 15-85mm?
@EvanKrall re: first paragraph - actually the 15-85mm is significantly sharper than the 18-55mm and 17-85mm lenses, only lagging a bit behind the 17-55mm f/2.8 "pro kit lens".
Sep
20
comment Is a mirrorless camera OK for macro photography?
This doesn't answer the question... It alludes to principles vaguely, but doesn't give concrete evidence for the argument.
Sep
20
comment Is a mirrorless camera OK for macro photography?
Note that you can always use an adapter to put Canon or Nikon macro lenses onto a mirrorless camera.
Sep
17
comment Does mirror lock-up drain the battery?
For the skilled hardware hacker out there, you could measure the amperage for mirror lock-up compared to other modes such as standby.
May
10
comment Automatic perspective transformation for papers on photos
Are you trying to combine frames from a Hollywood movie?
May
10
comment Automatic perspective transformation for papers on photos
Not sure why you're photographing papers - what would happen if you scanned one of these papers in a flatbed scanner?