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Lumifer comments on Babies and Bunnies: A Caution About Evo-Psych - Less Wrong

52 Post author: Alicorn 22 February 2010 01:53AM

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Comment author: Lumifer 15 April 2017 05:32:33AM 0 points [-]

Continuously, not so much so far as I know

Cameras with an electronic viewfinder have to update it with a reasonable refresh rate, if the AF is set to continuous it's updated in real time as long you half-press the shutter button, exposure/histogram is also updated in real time. The issue is basically how high a frequency can it do.

I'm not sure why you're telling me this

The key word is "predict". If you are confident of your prediction, you can do an exposure without measuring anything while it's in process.

simply to extend the range of acceptable exposure times

Well, there clearly would be a lot of trade-offs involved. An obvious one is that if you e.g. pan the sensor to keep the eyes sharp, all the motionless elements in the image would get smudged. That might work fine for a particular picture, but it is a specific look.

even the best IS systems don't deliver a 6-stop improvement

They do now. The latest Olympus -- EM-1 Mark2 -- claims to do 5.5 stops just with body IS and if you add lens IS that it can talk to (not sure there are more lens that can do that besides the 12-100mm) it goes up to 6.5 stops.