AutoFocus Prfimer

An interesting Video

 

 

and an article:

 

How Phase Detection Autofocus Works - Photography Life

 

That present an introductory explanation of autofocus on DSLR cameras.

 

Although the video and article use Canon equipment, it should be applicable to Nikon cameras as well.

I watched the video, but I didn't think it added all that much - and it has a couple of misconceptions, such as the sensors at 45 degrees being for diagonal lines. (They're not - they're for the "high precision" f/2.8 sensors.) YMMV. The article's good, though.

Can't stand that guys chatty vids. I'd rather do a one minute read than a 10 minute "influencer" video.

Can't stand that guys chatty vids. I'd rather do a one minute read than a 10 minute "influencer" video.

 

It does seem to be the way the world is going, possibly because some content producers find it less effort to sit in front of a camera than ramble than to sit at a keyboard (and, like I do, ramble). I can't really begrudge them that - if it makes a difference in the information being imparted, and sometimes there are things that can be explained better in a video. But I can do some reading in public, or in the toilet, or at my desk at work between other tasks. Requiring that I insert headphones in all of these cases and therefore cutting myself off from my surroundings is a negative - I'd far rather have a block of text that I can go through at my own pace. And like Steve, apparently, I'm a fast reader - certainly faster than most people talk.