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Anonymous
Im looking for lingo translations, mainly clear definitions of F-stop, Aperture, ISO speed, etc. etc.

Pic realted - a little of my photography.
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Camera-Specific Properties:Equipment MakeEASTMAN KODAK COMPANYCamera ModelKODAK DX6490 ZOOM DIGITAL CAMERAMaximum Lens Aperturef/2.8Sensing MethodOne-Chip Color AreaFocal Length (35mm Equiv)40 mmImage-Specific Properties:Image OrientationTop, Left-HandHorizontal Resolution230 dpiVertical Resolution230 dpiExposure Time1/45 secF-Numberf/2.8Exposure ProgramNormal ProgramLens Aperturef/2.8Exposure Bias0 EVMetering ModePatternLight SourceUnknownFlashNo Flash, CompulsoryFocal Length6.70 mmColor Space InformationsRGBImage Width2304Image Height1728Exposure Index80RenderingCustomExposure ModeAutoWhite BalanceAutoScene Capture TypeStandardGain ControlNoneContrastNormalSaturationNormalSharpnessNormalSubject Distance RangeUnknown
>> Anonymous
http://www.amazon.com/gp/product/0817463003
>> Anonymous
>>282508
google
wikipedia
>> Anonymous
damn I had no idea wikipedia was broken. that's terrible!
>> Anonymous
F-stop: Short for Failure Stop. Before the invention of electronic circuitry, cameras were prone to frequent bayonet failures caused by bent Kniffler pins.

Kniffler pins, by the way, are part of the sear mechanism that causes your shutter to fire. When Kodak was first producing the Brownie (thereby bringing photography to the masses,) they turned to an Austrian immigrant named Ernst Kniffler to help design the shutter trigger. Key to this design was what is now known as the Kniffler pin.

At any rate, the F-stop for a given lens basically told the camera that ambient temperature (degrees Celsius) is about, above, or below this range. The reason that photographers are so worried about the lower F-stop rating on a lens means the lower temperatures they will work in. Maximum temperatures aren't a problem anymore, just the minimums.

I'll explain Aperture and ISO speed later. Tea's on.
>> Anonymous
>>283208
I lol'ed. Hard.

OP, Wikipedia them for real definitions.
>> Anonymous
Now, that I'm done with the tea, here's another.

Aperture: This quantity is pretty much meaningless now, as this is now commonly referred to as "White Balance." Apple named a software editing program to draw more 'old school' film photographers (such as the now deceased Henri Cartier-Bresson) into the digital processing age.

Aperture technically refers to the width of the spectrum to which your sensor or film will respond. Furthermore, aperture is not a discrete quantity, but a point on a set of logarithmic curves that indicate the responsiveness of a given film to near infra-red (NIR) that creates a black and white image. You could think of the scale as an uneven curve with a purely reflective material at one end (with an emissivity of 0.00) and a blackbody (with an emissivity of 1.00) at the other. Interestingly, because of atmospheric refraction, the heat island effect, and reflection from the moon (when present) aperture works the same at night as it does during the day, in most cases. Unless it's cloudy or you are somewhere particularly cold, in which case you'll need to be concerned about your Kniffler pin (shutter mechanism sear).

Now because your camera doesn't need you to compute the NIR emissivity of your subject manually anymore, they (the manufacturers) have replaced this term with the more relevant (and easy to understand) "white balance." White balance, or WB, is the camera making a center-weighted evaluative decision about NIR conditions over the scene and then allowing you to make decision about altering the color response of the planar CMOS/CCD array.

This is why when you adjust the white balance that it alters the color on your viewfinder. Complicated, but not really.

Next up, ISO speed.
>> Anonymous
requesting this thread to be archived.
>> Anonymous
Finally, ISO speed.

You'd think that ISO would stand for something like International Standards Organization or some such thing, but it doesn't. You'll get that a lot if you go to Best Buy or Circuit City and talk with one of their people that just memorize marketing material.

Talk to your photography professor and I am certain that they will tell you that ISO has nothing to do with any non-governmental metrics body, however it has everything to do with your requested shutter speed.

ISO actually stands for Immediate/Preferable Shutter Operation. The Preferable was dropped from use some time ago after Leica released a camera in 1947 that had no preferable shutter operating mode. (Note, this had to do with the fact that the Leica factory was in a section of West Berlin affected by the Soviet blockade and the American airlift.)

Immediate/Preferable Shutter Operation is you telling your camera what speed you want it to (generally) move the shutter at. Now I say generally, because the camera will sometimes make the shutter move more slowly or quickly without your telling it to do as much. This is why some of your photos no doubt come out too dark or too light, even though you're using the Automatic mode.

More on Preferable mode in a moment.
>> Anonymous
Now the 'Preferable' part of ISO, the part that no one really talks about anymore, is what causes that issue. Your camera can actually override your preferences and cause the shutter to fire at an undesired speed.

Having this problem too much causes something called "Mirror Lockup" or "Shutter Slap" to occur. (You're often going to hear professional photographers talking about both of these.) Mirror Lockup is sometimes a good thing, but for the most part it happens when the partially silvered quartz mirror that exploits an interesting component of Quantum Electrodynamics (QED) to function ceases to resonate at the necessary 60 hertz (actually 50 hertz in Japan, and don't ask why.) Shutter Slap on the other hand happens when your camera enters Preferable Operation too many times and it is no longer possible to take correctly exposed (or you have too many incorrect exposures over a run of photographs) images.

At that point, it's best just to sell/give away your equipment and move on.

Hope that helps, and welcome to /p/. You'll find we're a little rough around the edges sometime, but stick with us and you'll grow more as an artist in six months than you would majoring in Photography at the Rochester Institute of Technology.
>> Anonymous
     File :-(, x)
>>283208
>>283234
>>283241
>>283242
>> Anonymous
I want to bear this thread's children.
>> Anonymous
This thread made my day
>> ROW ROW
Posting in an epic thread.
>> Anonymous
itt fucking win

thanks anonymous
>> Anonymous
I wouldn't have bothered explaining all of that shit to himin such depth, he could have looked it up on wiki or google. Don't feed the fucking newfags, too late
>> Anonymous
>>283324
can you read?
>> Anonymous
I haven't enjoyed a thread on /p/ this much in a very long time.
>> Anonymous
Umm I'm a complete non-photographer and just stumbled into /p/ looking for cool photos and found this thread.

So is the guy giving the detailed answers making shit up? Is that the joke? cos the definitions look pretty legit to me.
>> Anonymous
>>283649

It's all completely legitimate. I'm a physics major at uni, specializing in optics. I've had several classes with professors who were quite illuminating. Furthermore, /p/ is really the only board on 4chan where you get legitimate answers to most, if not all, of your questions.

I think the major problem most people have with /p/ is that they barge in here without a clear mission or question, and then are unwilling to accept criticism. Some of what you'll see here can be glib, trite, or silly, but it's all in good fun. Stick around enough and you'll see that we're just playing most of the time.

We're not anything like the reprobates and pederasts from /b/. We're nice people.
>> Anonymous
>>283213
Those are real definitions, fag.