Linked Questions

48 votes
7 answers
10k views

How did photography work before auto-focus was invented?

Having just spent some time reading questions about auto-focus, I came up with a question of my own: How did cameras even work before auto-focus technology was invented? Presumably everybody used ...
MathematicalOrchid's user avatar
58 votes
5 answers
24k views

What methods can be used to micro-adjust autofocus of a camera body to a particular lens?

I have a Canon 7D with a 50mm f/1.4 lens, and I think the auto-focus of the lens is off. How can I test and adjust this reliably? Will this approach work with all of my lenses? If I had a different ...
EtienneT's user avatar
  • 2,033
12 votes
4 answers
3k views

What settings for Dirt track night time pictures

So I just started taking pictures at a dirt track and having problems with getting them crystal clear at night races. I'm using a Nikon D-90 with a tamron 70-300 lens. I have my ISO on 2500 and ...
Rebecca L Perry's user avatar
11 votes
2 answers
8k views

How do I diagnose the source of blurry photos?

Probably a novice question, but how do I correctly diagnose from a photo for what reason that camera wasn't able to focus properly? Or tell if the image was blurry for some reason other than incorrect ...
MnZ's user avatar
  • 422
4 votes
4 answers
7k views

Why am I getting blurry images with a Sigma 35mm Art and Canon EOS 77D?

I recently got the Canon EOS 77D and the Sigma 35mm Art 1.4 I notice in my pictures stuff where i'm a little distance away I comes out blurry. My setting on here were ISO 800 f/1.4 1/160sec I do know ...
LynnRemson's user avatar
3 votes
2 answers
8k views

Do the issues with sharpness I am seeing require AF fine-tuning?

I own a nikon D7000 with 18-105 lens. I am not happy with sharpness I get with autofocus in portraits. I read about front/back focusing, but I am not sure whether my gear has this issue. Is this issue ...
V.B's user avatar
  • 1,786
1 vote
5 answers
9k views

How can I fix back/front focus on my Canon 50mm F/1.8 STM lens?

I have a Canon EOS 1200D body with a bunch of lenses. A while back, I acquired the new Canon 50mm f/1.8 STM lens, and started noticing that the images were soft. After a bit of experimenting, I found ...
adarsha joisa's user avatar
0 votes
3 answers
5k views

Why doesn't focus confirmation appear in AI-servo mode?

Camera: Canon 700D Lens: EF-S 55-250mm STM So far I have been shooting still subjects. But recently I wanted to photograph moving people (skaters). I changed the AF mode to AI-Servo (as skaters are ...
kazanaki's user avatar
  • 762
4 votes
4 answers
3k views

Will the Canon 5D MK II with 100-400 1:4.5-5.6 work properly with Kenko 1.4 converter?

I'm using 5D MKII body and 100-400 f/4.5-5.6 lens. I want to use a 1.4 converter; will the Kenko converter work and autofocus properly?
Ruud's user avatar
  • 41
8 votes
1 answer
4k views

Which offers better results: FoCal or LensAlign Pro?

I am in need of microadjusting my autofocus for a couple of my lenses with my Canon 7D. Namely, I need to adjust the 100-400 L lens, which seems to consistently AF a bit softer than I've seen from ...
jrista's user avatar
  • 70.7k
1 vote
2 answers
3k views

Help! Auto-focus not working on Manual Mode but working perfectly fine on Auto Mode

I just bought and received a brand new Canon EF 24-70mm II USM lens. Already there is an issue. The autofocus works perfectly fine in Auto shooting Mode but will NOT work in Manual shooting Mode. This ...
allisonmashburn's user avatar
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
  • 881
0 votes
4 answers
3k views

Sigma 18-35mm f1.8 compatibility with Canon 800D(t7i)

I have bought a new Canon 800d/T7i(APSC) DSLR Camera body. I haven't opted for the Kit Lens. Now I am planning to buy Sigma 18-35mm F1.8 lens for my daily photography. But I have gone through some ...
sudhakar teki's user avatar
0 votes
1 answer
5k views

Focus issues in a Nikon 24-70 f/2.8 lens

I have a Nikon 24-70mm f/2.8 (without VR) and the pictures taken with it are not sharp and crisp as I think they should be. I use it with a Nikon D7200 that works perfectly with a Nikon 70-200mm f/2.8 ...
Sardinha's user avatar
0 votes
3 answers
1k views

Want to upgrade Canon T6i and need guidance

I have a Canon T6i and mainly use a Sigma 18-250 lens. I photograph lots of stuff (landscapes, my kids, sports, architecture, wildlife, etc). I have a good wide angle lens for the landscapes. I want ...
Susan's user avatar
  • 23

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