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Buffers
Chantal,
The reason you are experiencing this lag time is a tiff file totally fills the camera's memory buffers. It has to write all that data to the memory card before you can take another picture. Depending on the brand of memory card, this can take more than a minute. At full resolution, the tiff is about 14 megs of data; the same raw file is 9.5 megs; the same jpg file at highest quality is 2.1 megs; at lowest quality is .65 megs. With mine, I can take 3 best quality jpg consecutive shots before the camera slows down.
The difference between the tiff and best jpg is scarcely noticable, although you can spot it if you take the same reference shot from a tripod, then zoom in past full size. You should do this in order to see the difference for yourself.
I don't take manual light readings, I use the exposure bracketing instead and let the camera do work out exposure details. To do otherwise is like manualy shifting a car with an automatic transmission. (After setting 'drive' to 'bracket,' hold shutter down until three frames are exposed. Bracketing can be set from 1/3 - 1 full f-stop.)
You have to remember proper exposure is subjective, and depends on what you want to see in the photo.
It also helps achieve detail in high/low-value areas to reduce the contrast (in the camera, before taking picture.)
I would be interested in seeing something from your photo-shoot. Maybe you could post something in the photo critiques section.
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Will Enns
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Hybrid Mode
