Back Button Focus Configuration
Apr 5, 2022 04:14:40 #
larryepage wrote:
Selection of AF-C or AF-S is also a quick and easy task. I shoot very few subjects where continuous focus is required or helpful. And unlike many folks, I do shoot a lot of subjects where audible focus verification is very helpful. (There was a poll on this a few months ago, and I learned just how small the minority is.)
Chalk much of it up to the herd mind.
Apr 5, 2022 04:18:33 #
TonyBrown wrote:
And set your focus mode to continuous auto focus.
Maybe, maybe not. Try out S and C for yourself. The herd mind doesnt suit us all.
Apr 5, 2022 04:58:17 #
Apr 5, 2022 09:50:04 #
TonyBrown wrote:
And set your focus mode to continuous auto focus.
Yes.
Apr 5, 2022 17:50:53 #
I cannot imagine a situation where I would want to disable the back button focus. Back button offers two major advantages over shutter release focus. 1. The ability to focus, release the button and recompose without change in focus and 2. press and hold to acquire continuous focus without the delicate touch required to maintain focus without accidentally firing off a shot when using the shutter release. It just requires some practice, don't give up.
Apr 6, 2022 10:48:27 #
Picture Taker
Loc: Michigan Thumb
To each his own, I don't use it and have found a friend who does and complained that his pictures are not clear. I found that when sets the back button and goes to take the picture he slammed the front button and shook the camera. I'm not saying don't use the back button, but be aware of squeezing the photo button.
Apr 6, 2022 11:10:27 #
larryepage
Loc: North Texas area
Picture Taker wrote:
To each his own, I don't use it and have found a friend who does and complained that his pictures are not clear. I found that when sets the back button and goes to take the picture he slammed the front button and shook the camera. I'm not saying don't use the back button, but be aware of squeezing the photo button.
I am coming to realize, especially at close distances with wide apertures and/or long focal lengths, that there is some risk in focusing and recomposing, Since the plane of focus is a sphere, not a flat plane, areas approaching the corners of the frame can in some cases get out of focus as I move them from the focus point to somewhere nearer the edge or corner. Physics verifies what is happening. In these cases. it's better to just spend the energy moving the focus point around. Other times, at greater distances or smaller apertures, it isn't a problem.
Apr 6, 2022 13:43:46 #
larryepage wrote:
I am coming to realize, especially at close distan... (show quote)
Another thing for shooting close and hand held is to also shoot a short burst while holding the back button, that way if you waver slightly you give yourself more chances for sharp focus.
Apr 6, 2022 19:16:05 #
larryepage wrote:
I am coming to realize, especially at close distan... (show quote)
It seems this post was written with you in mind: How to obtain sharp images in digital photography
Apr 6, 2022 19:46:43 #
larryepage
Loc: North Texas area
CHG_CANON wrote:
It seems this post was written with you in mind: How to obtain sharp images in digital photography
Thanks. Ive read it previously. Don't have a history of difficulty getting sharp inages other than infrared. Working on that.
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