My Nikon D5100 Won T Focus

By | 18/10/2022

D5100: Won’t snap if can’t focus
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RUcrAZ

RUcrAZ •

Veteran Member

• Posts: 7,381

D5100: Won’t snap if can’t focus

Hello,

I had never come across this before: A D5100 with a Nikon 16-85mm lens, assail Auto-focus, “Single Point Auto Focus,” and aimed at a white background (or a fog banking concern) was naturally unable to auto-focus. What I was not expecting was that it also would not take a picture – at least it would not exercise so on either AUTO or P modes. (I switched to Transmission Focus, (Infinity,) and it worked OK.)

Question: The part about not existence able to autofocus I understand; but the function nigh not taking a moving picture at all….on auto focus….is this “normal?”

Cheers



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RUcrAZ

ANSWER:

This question has not been answered notwithstanding.

BirgerH

BirgerH •

Veteran Member

• Posts: 5,904

Re: D5100: Won’t snap if tin can’t focus

RUcrAZ wrote:

Hello,

I had never meet this earlier: A D5100 with a Nikon 16-85mm lens, assault Auto-focus, “Single Point Machine Focus,” and aimed at a white background (or a fog banking company) was naturally unable to auto-focus. What I was not expecting was that it also would not take a picture – at least it would not exercise and so on either Auto or P modes. (I switched to Manual Focus, (Infinity,) and it worked OK.)

Question: The part virtually not being able to autofocus I empathise; but the part about not taking a picture at all….on automobile focus….is this “normal?”

Cheers



Yes:

If set up AF-mode to AF-S the release push volition be locked if no focus is achieved – no matter the exposure mode.

If you had it on AF-A, the photographic camera choosed AF-S in this example.

Set the photographic camera to AF-C – and in your user-menu if there is an choice for AF-C priority – set that to release instead of focus – then there you are.

(AF-A(uto) is not a third af-fashion – it’south the camera choosing automaticly between AF-S(ingle Servo) and AF-C(ontinious Servo))

BirgerH.

BTW all this is in your manual.



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Mako2011

Modernistic
Mako2011 •

Forum Pro

• Posts: 28,322

Come across page

RUcrAZ wrote:

Hullo,

I had never encounter this before: A D5100 with a Nikon 16-85mm lens, set on Machine-focus, “Unmarried Point Auto Focus,” and aimed at a white background (or a fog banking company) was naturally unable to auto-focus. What I was not expecting was that it also would non take a moving-picture show – at least it would non do so on either Auto or P modes. (I switched to Manual Focus, (Infinity,) and it worked OK.)

Question: The function most not existence able to autofocus I understand; but the part about not taking a picture at all….on auto focus….is this “normal?”

Thank y’all



This is normal

See page 39 in the manual and notation that in Focus manner AF-S and AF-A shutter can merely be released if “photographic camera is able to focus”. In AF-C you lot accept two options as noted by the menu a1 description on page 158

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tcg550 •

Veteran Fellow member

• Posts: 9,349

Re: D5100: Won’t snap if tin’t focus

Why not manual focus or alter the focus signal to something you tin focus on similar the span back up.

Or focus and recompose.

Re: D5100: Won’t snap if can’t focus

tcg550 wrote:

Why not manual focus or alter the focus point to something you can focus on like the bridge support.

Or focus and recompose.

+1 on all three options.



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RUcrAZ

OP
RUcrAZ •

Veteran Member

• Posts: 7,381

Give thanks yous all

Thank yous all for your helpful information, and guide to the owners’ manual. Had not focused (pardon the pun) on that particular part of the manual. Information technology’s clear now, and I’m glad it’s non a defect of the camera.

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RUcrAZ