File :-(, x, )
is this statement correct Anonymous
found this on another forum

"most cameras these days will have matrix metering, spot metering, and center-weighted metering (some have more, some less). In matrix mode you are essentially letting the camera figure out what the best exposure is (even if you are in full manual mode),and trusting that it gets it right. Center-weighted is more focused- usually about 10-20% of the viewfinder (and obviously in the middle of it), so that you can meter just in that area, and determine what the correct exposure is from that small area. Spot metering is the most precise (~5% of the viewfinder), but you have to be careful where you meter off of."

this part: In matrix mode you are essentially letting the camera figure out what the best exposure is (even if you are in full manual mode)

if you're in full manual mode, aren't YOU selecting the exposure and not the camera? i could be setting 1/8000 and f/22 for all the camera cares
>> Anonymous
same poster

"I usually shoot only in manual mode, so for me it's a matter of deciding what the object I want to meter off is"

maybe it's me who doesn't understand what metering means
>> Vincent !!8LCSE0Zp1mL
If Auto-ISO is on then thats correct, otherwise its kind of wrong.
>> fence !!POey2hdozCZ
the camera still gives an over/underexposure indication based off what it's reading, though, and that indication is based on whatever metering it's set to. has no effect on what you actually shoot.
>> Anonymous
oh

but iso aside, full manual is full manual, innit

the light meter will change but it's not the camera that picks the exposure, it's you
>> fence !!POey2hdozCZ
>>136515

right. it's just sort of a danger, will robinson! kind of thing.
>> Anonymous
The poster is right, he just worded it funny. What he's saying is that in matrix mode, you're being told a specific EV to use based on what the camera thinks of the scene, or being told that your current settings let in too much/not enough/ too little light.

CWA can be used that way, but it can also be used more intelligently by figuring what tone it's weighting the metering for. Fast but still lets the photographer in on what it's thinking. Matrix metering just runs it through some occultic algorithim without letting one know if it's weighting more that big dark lake over in the corner or the shiny white shirt your friend is wearing.

Spotmetering just tells you how the spot it's pointed at will be rendered relative to medium gray. If it's saying it's a stop overexposed, it'll end up as zone six. Etc.
>> Anonymous
stupid question

can a gray card for white balance be used to judge exposure?
>> ac !!VPzQAxYPAMA
>>137255
Gray cards were used for exposure long before they were used for white balance.
>> Anonymous
>>136515
the camera figures out what the "best" exposure is. its just telling you what it thinks is the best. its not actually doing it.
>> Anonymous
>>137260

i was going to buy one at my local store but the guy laughed and said go buy it from staples

i don't know if it's because they don't stock them or if he was being a jackass

i'll just buy a sheet from b&h next time i order shit

fuck them
>> Anonymous
>>137260

So do I just stick it on the scene I want to take, spot/partial meter off it and use that exposure? Kind of like reading from a light meter?