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Message: <blockquote data-quote="J-see" data-source="post: 387422" data-attributes="member: 31330">Yeah the lightmeter does nothing that affects data.I incorrectly assumed it did. I remember testing it with the D3300 and when normalizing two different exposures, the images were not identical. That was only possible if the lightmeter somehow affected the to be stored values of each pixel. This annoyed me greatly since I didn't see the logic in it. When retesting today with the D750 the shots turned out to be identical so I retested the D3300 too and apparently I messed up my first test and incorrectly assumed the lightmeter these days did more than it actually does.Turns out it does exactly the same thing it did when handheld and only is of use in any mode where it needs to set or suggests the aperture or shutter value (or ISO). But once in manual the meter is of no importance. It also becomes irrelevant the moment I hit a limit whether that is aperture or shutter.All in all it's a good thing it doesn't do anything but for night shots it would've been handy. The only thing I now can do to get more light when at my 30 seconds is opening the lens more or manually open and close the shutter. That's going to be trial and error. Take a shot, check the histogram and clipping and if all is fine, take another with an even longer duration.</blockquote>