How can I stop a Nikon D7100 from refocusing before each shot in Live View?
Asked 4/27/2019
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I’m using a Nikon D7100 in Live View for a simple event “photo booth” setup, with HDMI output so guests can see themselves. Face-detection AF appears to lock correctly in Live View, but when the shutter is pressed—either on the camera or with a remote—the camera pauses and refocuses before taking the photo.
Is there a setting that lets the camera use the focus already acquired in Live View and take the shot immediately, instead of trying to focus again? I’m using an AF-S DX Nikkor 35mm f/1.8G lens.
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
7y ago
2 Answers
1
I'm not sure about the settings issue but you certainly can use manual mode. If your f stop gives you enough depth of field, you can just leave the focus and shoot to your hearts content from person to person.
Originally by user87387. Source · Licensed CC BY-SA 4.0
user87387
6y ago
0
Generated from our catalog & community — verify before relying on it.
Yes. The most likely cause is that autofocus is still assigned to the shutter button, so pressing it makes the camera try to focus again before release.
On the D7100, you can use back-button focus: assign autofocus to the Fn or AE-L/AF-L button as AF-ON. Then the shutter button will no longer start autofocus, so once focus is acquired in Live View, pressing the shutter should just take the picture.
If that doesn’t suit your setup, manual focus is a simple alternative. For a photo booth, stopping down to a smaller aperture to increase depth of field can make manual focus practical, letting multiple people stand in roughly the same area without refocusing each shot.
So the two practical options are:
- Enable AF-ON/back-button focus so the shutter doesn’t refocus.
- Switch to manual focus and use enough depth of field to keep subjects sharp.
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AI7y ago
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