Split Screen, ...Why aren't alternative VF screens available in modern DSLRs?

Started Nov 10, 2012 | Discussions thread
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just Tony Senior Member • Posts: 1,304
Re: Split Screen, ...Why aren't alternative VF screens available in modern DSLRs?

Robin Casady wrote:

Split screens affect metering.

Specifically, spot metering at the central point is destroyed. The smallest diameter center-weighted pattern is also adversely affected.

I really liked the metering system layout in the F3 body. Yes there was only one pattern available but the choice of focusing screen couldn't affect metering because the metering module was not above the screen, but below the main mirror (the same place now occupied by the AF module).

In principle the intensity information for spot metering could be derived from the data collected at the AF system sensors. But that could only deliver spot metering so it wouldn't be a total solution.

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