10mp 10fps 1.3 crop

Started Feb 17, 2007 | Discussions thread
T3 Forum Pro • Posts: 21,546
Re: 27pt AF is an upgrade? NT

thx1138 wrote:

In the case of the curent 1 series the smaller F point is less
sensitive to low light as Canon have explained.

Less sensitive than what? Less sensitive than their lower-density AF arrays? Less sensitive than previous 1 series AF arrays? They may be less sensitive, but I doubt that is specifically due to the size of the actual focus point. It may be due to the density of the focus array, since a higher density of focus points means there is a lot more information for the AF CPU to process. Or did they decide that, because they were going to have MORE AF points, that they would have to make all of them LESS sensitive to light? I'm not sure that I buy that. So does that mean that, if they halved the number of AF points, they would then automatically increase the sensitivity of those remaining points? I'm not sure I buy that either.

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