Shutter button Focusing and Focus Lock
Jun 10, 2020 10:53:51 #
rdubreuil wrote:
Why? That defeats the purpose of using BBF.
I believe it’s the default for most cameras, but it doesn’t make sense to use the back button if it’s gonna refocus when you press the shutter.
Jun 10, 2020 11:05:20 #
sumo wrote:
AGREE... I cant seem to change it....the D850 is a smart camera and Im a dumb operator
Look for AF Activation in the custom settings menu. On my D500 it’s menu item a8, on my Z7 it’s a7. It has two options, Shutter/AF-ON and AF-ON Only. Set it to AF-ON Only. The shutter will no longer initiate focus.
Jun 10, 2020 11:10:19 #
BBF is just using two buttons instead of one. One for focusing and the other for metering/shutter.
I love having the functions separate.
I love having the functions separate.
Jun 10, 2020 11:30:04 #
You can change that in the menu settings so that only one works on the D850.
Jun 10, 2020 11:43:13 #
SuperflyTNT wrote:
I believe it’s the default for most cameras, but it doesn’t make sense to use the back button if it’s gonna refocus when you press the shutter.
On my Canon, setting the back button removes the focus function from the shutter button.
(Otherwise it would be pointless to set up BBF if it wasn't.)
Jun 10, 2020 12:05:49 #
BBF has several advantages when shooting wildlife. On the D500, AFC on, AUTO ISO, AE set to single point, joy
stick to group focus, shutter focus off. If subject is static focus and shoot, if you need to recompose release AE recompose and shoot. I keep the AE or joy stick depressed when shooting moving subjects. Once you've used it I doubt if you'll go back to shutter focus. Just have fun!
stick to group focus, shutter focus off. If subject is static focus and shoot, if you need to recompose release AE recompose and shoot. I keep the AE or joy stick depressed when shooting moving subjects. Once you've used it I doubt if you'll go back to shutter focus. Just have fun!
Jun 10, 2020 12:27:34 #
I started using BBF a number of moths ago. Took a bit to get use to, but I'll never go back to shutter button focus. To me it's the difference between heaven and hell.
Jun 10, 2020 16:26:10 #
kenabr
Loc: S.E.Wisconsin
The hopper wrote:
I understand that pressing the shutter button half... (show quote)
As long as you are holding the button half way down the focus can change as you recompose because you are moving the focus point. Back Button focus allows you to focus on an object release the back button which allows the focus to lock. Recompose the focus is locked picture taken' If you use AF-C or continuous focus you can hold the back button in while you track a moving object and continue to focus thru shutter release. Also by focusing first with the back button you don't need to touch the shutter release until you take the picture.
Jun 10, 2020 16:48:45 #
So this question is about focus issues, not exposure. If you have a camera with tracking, you can focus on your subject with the appropriate tracking mod, keeping the shutter button 1/2 way pressed, recompose, and shoot. No need for back button focus.
Jun 10, 2020 16:57:16 #
Nalu wrote:
So this question is about focus issues, not exposure. If you have a camera with tracking, you can focus on your subject with the appropriate tracking mod, keeping the shutter button 1/2 way pressed, recompose, and shoot. No need for back button focus.
What if one wants to meter on some other area of the shot?
Like focus on one area, meter on another.
Jun 10, 2020 17:25:54 #
Some folks here have said the using BBF is difficult because of finger size or whatever. For me it was problem because I am a left eyed shooter. You don't have to use the AE-L, AF-L button for BBF. I have assigned it to both my Fn1 and Fn2 buttons. I reach them easily with various fingers without smudging my glasses. I use one or the other depending on how I am holding the camera. Like any other button you quickly get used to it.
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Jun 10, 2020 17:29:17 #
Jun 10, 2020 17:54:19 #
It takes about a week of shooting BBF to become one of the converted. Exposure lock is used far less often, but it is great to assign it to a programmable button (like CamB suggested) for those times when you do want to use the camera's meter more like a spot meter and lock in a reading. Once again, minimal practice will have you understanding its uses and will probably convert you to using it regularly. This is all part of the journey. Even if Carnegie Hall isn't open these days any pianist will tell you to practice, practice, practice.
Jun 10, 2020 18:21:02 #
billnikon
Loc: Pennsylvania/Ohio/Florida/Maui/Oregon/Vermont
Nalu wrote:
So this question is about focus issues, not exposure. If you have a camera with tracking, you can focus on your subject with the appropriate tracking mod, keeping the shutter button 1/2 way pressed, recompose, and shoot. No need for back button focus.
Correct. And on the new Sony camera's, you have what is called, Tracking expand flexible spot focusing system, which works great with the regular focus button pushed half way down. And, during your 20 fps, the sony camera, with continuous focusing activated, keeps the subject sharp throughout the 20 exposures per second. NO NEED FOR REAR BUTTON FOCUS. No fuss, no muss. Just things done as they should be done.
Jun 10, 2020 19:01:55 #
The hopper wrote:
I understand that pressing the shutter button half... (show quote)
Back button focus is a great tool in DSLR Photography. Have you attemped B.B.F. as yet? Once you set it up in your Camera and get use to it, you will find it very beneficial in your Photgraphy.
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