Posted: 6/9/2012 10:28:26 AM EDT
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I have the 60D canon. I have been studying about ISO What I am learning is that the higher the ISO the more light that is let into the sensor. I have been playing wiht the camer a little and on manual settings I turn the ISO way up to get som pics in low light situations. example: outside at night aiming at a vehicle down the street under a streetlight. Issue Im having is though. As I turn up the ISO settings to 1600 or what have you. It actually is having the opposite effect. The image is darker when viewing it on my camera LCD. As I dial the ISO down to 100 or so the image becoems easier to see and not blacked out. My question is. Am I misunderstanding the use of the ISO or is a setting I am unaware of incorrect? Again Im hoping to let in more light and a brighter image. Thank you for any help. ST |
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Don't use your LCD screen to shoot pictures, use your viewfinder and use the exposure meter indicator.
ISO is the sensitivity to light, not the amount that gets to the sensor. The amount is controlled by aperture size and shutter speed. Those and ISO all work together to get 'correct' exposures. You can get better exposures in low light by using a lower (larger) aperture setting or a slower shutter speed. If you're new or somewhat new to SLRs, I highly recommend a copy of Understanding Exposure. The latest edition covers digital photography, although all of the concepts are pretty much universal. |
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I used the viewfinder to take the pic. The camera is new. I am relatively new to photgraphy. I reviewed the image using the LCD to see results. Is there a setting im missing? Why is it that less light is coming in with a higher ISO setting is what im trying to figure out? ST |
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Quoted:
I have the 60D canon. I have been studying about ISO What I am learning is that the higher the ISO the more light that is let into the sensor. I have been playing wiht the camer a little and on manual settings I turn the ISO way up to get som pics in low light situations. example: outside at night aiming at a vehicle down the street under a streetlight. Issue Im having is though. As I turn up the ISO settings to 1600 or what have you. It actually is having the opposite effect. The image is darker when viewing it on my camera LCD. As I dial the ISO down to 100 or so the image becoems easier to see and not blacked out. My question is. Am I misunderstanding the use of the ISO or is a setting I am unaware of incorrect? Again Im hoping to let in more light and a brighter image. Thank you for any help. ST 1. The amount of light that hits the sensor depends on the aperture, shutter speed and the amount of that is hitting the front of the lens. ISO changes the sensitivity of the sensor. Or more accurately, it amplifies the signal signal from the sensor similar to the way that an audio amplifier amplifies a radio signal. The problem is that you amplify the static and noise just as much as you amplify the signal. 2. If the image is darker at 1600 than it is at 100 then you must have changed the shutter speed or the aperture. |
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Quoted:
... If you're new or somewhat new to SLRs, I highly recommend a copy of Understanding Exposure. The latest edition covers digital photography, although all of the concepts are pretty much universal. Ditto. Great book! I thought that I was a pretty knowledgeable amateur photographer and was surprised at how much I learned after reading it. |
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Quoted:
Quoted:
... If you're new or somewhat new to SLRs, I highly recommend a copy of Understanding Exposure. The latest edition covers digital photography, although all of the concepts are pretty much universal. Ditto. Great book! I thought that I was a pretty knowledgeable amateur photographer and was surprised at how much I learned after reading it. Not knocking the OP, but it sounds like he needs a copy. I got a copy right around the time I got my first DSLR this year. Mine lives in Manual mode, although for some indoor portraits last night at a relatives house, I used the "creative auto" mode for flash. I haven't played around with flash photography in manual mode yet, but I want to get an external flash unit and do so. |