DSLR Autofocus Explained! Cross type, Dual Cross type AF Points?

This was interesting AF

Exactly what the video title promises, short and sweet.

Wonderful narrative, great presentaion, good story. Thank you !!!

Dang that was good. Nice explanation.

the best explanation for AF system in DSLR!

Excellent explanation as usual ! Many thousand thanks to the eminent Mr Cheng !!!😊

SIR sir .... Sir Thank you

Good but partial explanation. Important part that is left is how aperture impacts the autofocus points and why with narrow aperture only central points remain working

awesome video, thanks!

What a video , no intro , no like and subscribe 😂, solid info

Hi , Thanks for this video. How are the metering modes connected to the AF area chosen? OR are they independent? When i choose a particular metering mode, does that study the lighting at AF focus point or just center area of the screen ? thanks

Diagon alley 😂😂 hp fans

This is the simplest, clearest and best presented explanation on how PD AF systems work, thank you!
Your name deserves to be written into the video ;)

Epico!

Great explanation

Does it worth to prefer 800d for 45 af points over 250d's clean hdmi out?

Getting difficulties in Focusing points in My 6D Mark II camera lot unfocused please help to resolve this query

Hi, i'm using canon 50D with 9 AF points. question is while shooting a person with 18mm focal length , it is hard to position theAF points right on the face of the person, coz my composition would take the person and sorrounding area, like backgrourd, tiles, and furnitures. The model is sitting with legs spread across the bed. the AF points are on the legs and half of the bed. is there any trick to put the AF point on the face?

Bful and made easy tutorial.Good.Hats off to you.

well explained

Finally it makes sense to me. I watched so many videos and I just couldn't get it. Thank you

Hopefully i am the the child in the story of the Emperor's new clothes and not just the stupid one. Cause (some of) the video make no sense for me like it do for all other.
You keep saying that the AF-function split the image vertical into two new imagine - But in your example, the image splits HORIZONTALLY (when it comes to the part where the image is seen through a slit)

Very nicely done. Great.

Well buddy, that was most enlightening, the best explanation of auto focus points I've ever heard. Many thanks. Good luck with the new series of videos around Malaysia. look forward to watching them. H

Brilliant explanation. No BS, to the (AF)point and clear as daylight. To stay in camera terms :-)

If possible, can you share the difference (advantage) btwn canon 200d dslr and canon mirrorless m100 camera's autofocus? Duly noted that your explanation the concept not applicable to mirrorless camera. Thanks

So clear. Fabulous teacher on these subjects.

And you explained the topic I was trying to understand properly for a long time in under 5 minutes. Thank you very much and subscribed as well.

The best explanation of any😍😍😍

Literally today years old.

I love me some Vertical Slit

thank you! what would be better, 45-points or 19-points in the cross-type AF-system?

Superb explanation.. loved it..

Nicely explained and illustrated.

Thank yor for this usefull explantion:)

Now i understand...

Very clear presentation! What is the difference between the mirror-less AF and DSLR? 45AF Points vs 5655 just seems to be a giant leap into more accurate AF... no?

This is a great explanation. Subbed

I’m new here how can I remove the auto red squares from my photos

Excellent explanation !

The best explanation ever.

Great illustration

This is one of the best-explained videos I have ever seen about anything, people who make videos with stupid intros and annoying music should watch this guy to see how it should be done.

A very good explanation! Thank you.

Very informative and clear explanation that I was looking for! Keep up the good work! Subscribing!

Nice explanation.. but in the beginning u told not applicable to mirror less camera. So what happens there?
Actually I'm comparing 5Dmk4 & EOS R