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View Full Version : Closest thing to spot metering


snevs
11th of May 2007 (Fri), 14:54
Hi,

I just finished reading "Understanding Exposure" and I enjoyed it a lot. I'm wondering about one thing though.

He writes about metering from the sky etc (something I couldn't check out so far.. no blue sky whatsoever in the past :( ), using the built-in spot meter. My 20d doesn't have such a thing. Which is closest to spot metering...? Center? Partial?

Also it would be nice to hear if the descriped techniques can be applied 1:1 on digital cameras, since I had more the feeling he's more writing about film cameras.

Any help appreciated. Thanks.

cdifoto
11th of May 2007 (Fri), 15:00
I think Partial comes closest but if you can get the sky to fill the entire frame or nearly so, any metering mode will work.

Hermeto
11th of May 2007 (Fri), 15:01
On 20D Partial (9%) is closest to Spot (3.5%) metering.

Pretty much everything Peterson writes about film cameras is the same with digital, except apertures..
He uses much smaller f/numbers in his examples..

snevs
11th of May 2007 (Fri), 15:12
Thanks CDIFOTO.

On 20D Partial (9%) is closest to Spot (3.5%) metering.

Pretty much everything Peterson writes about film cameras is the same with digital, except apertures..
He uses much smaller f/numbers in his examples..

Thanks. Does that mean, that for example his "Storytelling Aperture" of f/22 would be more, say like f/16?

DrPablo
11th of May 2007 (Fri), 19:27
Use the longest telephoto you have and meter through it. That will be a sort of "poor man's" spot meter.


Pretty much everything Peterson writes about film cameras is the same with digital, except apertures..

He uses much smaller f/numbers in his examples..

Smaller f/numbers than what? The lenses have the same properties, and in many cases are the same lenses. The only tiny difference between 35mm film and digital is that a lens will become diffraction-limited sooner on APS-C than on full frame or 35mm. But this is worlds different than 35mm versus large format -- I mean I shoot f/90 and f/128 on large format without diffraction being a problem.