Linked Questions

Ask Question
10 questions linked to/from Why can't my SLR autofocus on certain parts of a scene?
Hot Newest Score Active Unanswered
0 votes
1 answer
291 views

When I point my D5100 at a plain wall, why does it keep trying to focus instead of taking a picture? [duplicate]

D5100: When i point to a wall, and use shutter release button, it just tries to focus and that is it?why so?
amit's user avatar
amit
  • 1
1 vote
1 answer
121 views

Is there a way to avoid focus searching? [duplicate]

While using my camera in a relatively low light scenario I noticed some shots I missed because my camera was struggling to focus. I use a Nikon D7100 and noticed that the AF assist light only came on ...
Andy's user avatar
Andy
  • 145
14 votes
4 answers
3k views

Why doesn't auto-focus work with an all-white subject (like a wall)?

I am trying to compose a shot using my Nikon D60 and 18-55mm lens towards a white wall in a auto-focus mode. It looks like I am not able to take the photo. I feel the camera is not able to find any ...
kadalamittai's user avatar
kadalamittai
  • 751
36 votes
3 answers
13k views

How does autofocus work?

How does auto focus work on modern cameras? How accurate is it?
Ken's user avatar
Ken
  • 5,098
3 votes
2 answers
1k views

What could be causing focus problems in low light?

I am not a professional photographer but shoot outdoor and indoor pictures, weddings, and portraits as a hobby. I use a Nikon D750 with a 70-200mm 2.8 VR lens and a 35mm 1.8 ED lens. I have been ...
Vicky's user avatar
Vicky
  • 143
2 votes
3 answers
2k views

Why is my Canon 70D's liveview autofocus much worse than the viewfinder's?

First of all I came across these questions already: My viewfinder won't autofocus but live view focuses well Canon 600D Autofocus not working when using view finder but working in live-view Why is my ...
confetti's user avatar
confetti
  • 891
2 votes
1 answer
4k views

Nikon D5100 shutter button not working

I'm having problems with my Nikon D5100, generally when I first pick it up it will work fine for 3, maybe 4, shots then the button just stops working, I press it but nothing happens. If I change to ...
Karen's user avatar
Karen
  • 21
0 votes
1 answer
2k views

Focus box on the screen turning red on my canon 800D

I'm very new to photography, I have a EOS 800D. Sometimes I try to take a picture, noticing the focus box on the screen is red not green which won't let me take a picture. Why is that?
user76866's user avatar
user76866
  • 1
2 votes
2 answers
1k views

Lack of Focus/Sharpness on Zoom

I have recently taken what I thought were hundreds of amazing pictures of a group of seals on an CA beach - only to find every single picture is clearly out of focus or lacks sharpness. A sample ...
M Hawker's user avatar
M Hawker
  • 21
0 votes
1 answer
1k views

Why doesn't my Sigma lens autofocus if the subject is initially way out-of-focus?

I have a Sigma 150mm F2.8 EX DG OS HSM APO Macro lens mounted on my Canon 6D. Even if AF mode is set to minimum-to-infinity range, if my subject is way out of focus (too far or too near), like, say, ...
galanom's user avatar
galanom
  • 25