slr - iso
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- ********
So i bought a dslr camera and I am having trouble figuring out the settings. can anyone simply break down "ISO"?
what is ISO 200 good for?
what would you use ISO 1400 for?
Is the only difference that the picture has a finer image at 200 and a grainer image at 1400?
- 2cents0
lower the number the less noise, but also the need for more light.
- What he's about to say vSpookytim
- oh you clever clever manflashbender
- flashbender0
^ what he said higher iso = grainer but faster and needs less light
- ********0
- ********0
so its just basically a balance between low light and heavy light? are there any standards? like 200-800 are always indoors or is it basically just trial and error
- it has to do more with the subject. IE. Is DOP or stopping motion the priority?danthon
- yeah use photographic terms when he's obv a nube to photography! doh!23kon
- I am sure he can ask if he is not sure. Not very much real estate in these to explain details on things he will learn about one way or another.danthon
- key0
As you may remember from photography class hrrrmph, ISO is the light sensitivity of the "film". Same thing here lower numbers are finer grained but require more light/longer exposures higher numbers are faster but rougher.
- nevermind read the wikikey
- o ok, film speed. wiki was more useful than the instruction book********
- flashbender0
this pretty much sums it up:
- dibec0
iso100 - less light sensitive (sensor).
iso3200 - more light sensitive (sensor).it is pretty much a gain for available light to the sensor. There are physical limitations to aperture and shutter speed, iso gives some more flexibility. Due to the gain factor when you increase your iso the camera tends to pick up noise, hence loosing image quality.
- dibec0
lol.
- omgitsacamera0
Some cameras/sensors are better at higher ISO's than most.
For example, an 8MP camera phone at ISO 1600 yields watercolour grainy images more than say a 6MP dSLR at the same ISO.
It's that, the shutter speed, and the aperture that influence the image the most.
- jaylarson0
^ the sensor size matters most. squish 1000 pixels in one square millimeter will yield more noise than having 1000 pixels in a square centimeter.
higher iso cranks up the sensor's sensitivity allowing a more exposed image. since you can't make something out of nothing, and if the sensor uses too much gain, the noise and artifacts appear since it is trying to make something out of nothing.
- omgitsacamera0
heres a good bite sized version:
i saw a more detailed one with the effects of the factors, but i havent found it yet. maybe ill make my own.
