3
votes
No more turn left to get focus at infinity (hit the lens limit)
If the lens can focus on closer objects, but not achieve infinity focus, the lens needs to be brought closer to the sensor or film plane.
This often happens with adapted lenses that move the lens too ...
- 32.7k
3
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How can I fix back/front focus on my Canon 50mm F/1.8 STM lens?
There are several possibilities of what is going on here.
Before we get too far into the hardware related issues, let's makes sure it's not user error. Modern AF systems, even on cameras such as the ...
- 175k
3
votes
How can I fix back/front focus on my Canon 50mm F/1.8 STM lens?
AF alignment is not a camera flaw or a lens flaw — it's a matter of how the two you have work together. Your new 50mm may be perfect out of the box for someone else's camera — and their camera wrong ...
- 143k
3
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Why does my D5200 autofocus behind the subject with my 35mm f/1.8G lens?
As Nikon D5X00 cameras lack the micro-focus adjustment feature found in D7X00 cameras, viewfinder front focus and back focus problems cannot be fixed by camera settings.
Fortunately, there is an ...
- 31
2
votes
Why does my D5200 autofocus behind the subject with my 35mm f/1.8G lens?
What you are describing is known as back-focusing. The different tolerances in manufacturing, assembling, and calibration have combined such that your individual camera, when combined with your ...
- 32.7k
2
votes
How can I fix back/front focus on my Canon 50mm F/1.8 STM lens?
While it might be an autofocus issue, I'd recommend you make sure it's not the fact that you're shooting at f/1.8 with the lens all the time. :) It is extremely common, after getting their first fast ...
- 52.1k
2
votes
Accepted
Front AF confirmation focus with manual lens?
Front or back focus issues can be the result of any of several issues. It's usually a combination of more than one of them since there's no such thing as a perfectly aligned lens, mounting flange, and ...
- 175k
2
votes
Accepted
Can I calibrate a Nikon D7000 body at home?
Yes, you can, as long as the given range (-20 to 20) is enough to give you good results.
AF Fine tune values are simple to understand. If your camera exhibits back focus (i.e. focus is farther away ...
- 2,055
2
votes
Accepted
Why can't I reproduce a back-focus problem at home?
What could explain that the problem is so persistent outside, but so rare at home?
You're shooting different distances.
It's not uncommon at all for lenses and cameras to be properly matched to ...
- 175k
1
vote
Accepted
Back-focusing with Canon 7D2 body and Sigma 50mm art lens: is the Sigma USB dock the solution?
There are several thing to consider here:
Based on reading a lot of reviews from a lot of different sources one can learn that the Sigma Art series of prime lenses are very sharp when focused ...
- 175k
1
vote
Accepted
Is a Siemens star, printed with laser printer, suficiant for sharpness testing?
If you are only testing for relative sharpness and focus accuracy then you don't really need a chart at all. You only need a target/subject of good contrast with fine enough details to judge sharp/...
- 17.2k
1
vote
No more turn left to get focus at infinity (hit the lens limit)
For so-called unit focusing lenses (many but not all prime lenses are), moving it closer to the sensor is what will make it focus to infinity, and that is what the lens mechanics are actually DOING to ...
- 7,212
1
vote
Accepted
D750 back button focus and remote
The Pluto trigger sends the "Focus" command as a shutter button half press command, rather than a command to "Focus." This is because the connection of the receiver to the camera is via the camera's ...
- 175k
1
vote
Are any photographers known to intentionally make "creative" use of front/back focus settings of a camera?
The ratio of the amount of Depth of Field (DoF) in front of the focus distance to the amount of DoF behind the point of focus is highly variable. At Minimum Focus Distance (MFD) most lenses give a DoF ...
- 175k
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