DPReview.com is closing April 10th - Find out more

BIF AF Confusion with R7, RF 100-400mm Rf 1.4x

Started 4 months ago | Discussions thread
Zeee Forum Pro • Posts: 25,627
Re: BIF AF Confusion with R7, RF 100-400mm Rf 1.4x

I ordered the R7 and have been watching a few videos. I already know how I'm going to program it

I found this video by Jan Wegener. Another excellent example of the pre-focus "technique" which I use all of the time with my MF bodies. Not only good for initial AF but if the camera loses the eye I just use this method to get to back on.

1. It happens really fast so to start stopping it exactly at 19:16 shows I think Single Point AF. It may be Spot AF but I don't have the camera yet to compare the size of those two on that sensor. Since he probably mapped the AF_ON for AF only I suspect he may be using the * button for the Single/Spot AF. This gets the bird in focus so now the camera can look for an eye.

2. Also at 19:16. You have to play and pause pretty quickly. He likely lets go of the * button and while moving his thumb back to the AF-ON button the white prefocus square kicks in. Preview AF - page 3 of purple AF menus. If there are longer delays by a user that white pre-focus square will track the bird until you get to the AF-ON button.

3. He presses the AF-ON and the eye snaps in.

https://www.youtube.com/watch?v=TBf2SnTbhRA

I'm just guessing on he mapped the buttons but this was just to illustrate how this works.

-- hide signature --

Don't Look Up! The very fabric of captured light is noise.

 Zeee's gear list:Zeee's gear list
Canon EOS R7 Canon EOS R6 Mark II Canon RF 24-105mm F4L IS USM Canon RF 100-500mm F4.5-7.1L IS USM +1 more
Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow