Linked Questions

46
votes
7answers
8k 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 ...
7
votes
4answers
2k views

Is camera lens focus an exact point or a range?

I have often wondered if the focus of a lens at a particular focal length is an exact point or a range within a few millimeters. This becomes all the more important when manually focussing. How far ...
3
votes
2answers
2k views

Canon EOS 800D vs 80D | Which one is better for macro photography?

I am looking to buy a new camera body primarily for Macro photography. I am currently shooting on a 2008 spec Canon EOS 450D, but want to upgrade. I have a budget of AUD$1000 and am looking at either ...
6
votes
5answers
3k views

What would be a good digital alternative to a Canon AE-1 from 1977?

I would like to purchase my first DSLR camera with similar features and experience to my AE-1 Canon film camera. In particular, I would like a depth of field indicator that shows the depth of field in ...
4
votes
2answers
2k views

What do these curved, color-coded lines mean on a vintage Nikkor lens?

This lens, a Nikkor 80-200 AIS, has some curved lines that are color coded to match the aperture ring. Originally I thought this was for focusing but playing around with it does not make it seem like ...
7
votes
5answers
909 views

Photostacking - Why does this technique fail for my astrophotos?

Last week I went to Tahoe to do some astrophotography. I watched this video (https://www.youtube.com/watch?v=Rydg7JGTAbw) about image stacking to reduce noise in my photos so I decided to give it a ...
6
votes
6answers
1k views

Why is the area in focus in front of the focus distance narrower than behind it?

I guess the title and the picture explain my question well.
3
votes
3answers
2k views

Why does getting closer or zooming in decrease depth of field?

I know that aperture changes the depth of field (DOF), but why is it that by making the image appear larger (by getting closer to the camera or zooming in) there is less DOF?
3
votes
3answers
481 views

What is “focus distance lower/upper” and how is it different from depth of field?

I have taken two photographs on a Canon crop sensor camera: 18mm f/9 with the following exiftool output (the focus was approximately at 3.5 meters): Focus Distance Upper : 5.27 m Focus ...
1
vote
6answers
794 views

Is it focus or depth of field? [duplicate]

I was trying to shoot a group of people standing clumped but at different distances, quite close to me, think disorganized portrait. I have a Nikon d750, and was not able to get everyone into focus. ...
4
votes
3answers
833 views

Any truth that depth of field extends from one-third in front of focal point to two-thirds behind it?

In the book Digital Photography Complete Course, there is a page that discusses and illustrates depth of field: There is an info box that says the following: The point at which you focus the lens ...
2
votes
2answers
1k views

How do I obtain sharp images on full body portraits?

I currently have a 50mm 1.8 and 85mm 1.8 and would want to know if the bokeh or sharpness would be any different at all. Many seem to say that the 85mm woud work best, but wouldn’t I have to bump up ...
1
vote
5answers
722 views

How do I set hyperfocal distance meter on a Pentax 50mm lens, if I want bokeh?

I have just bought my first DSLR, a second-hand Pentax K-x. I also bought a prime lens (SMC Pentax 50/f1.7) and now I am struggling with the following basic question: How do I set the hyperfocal ...
2
votes
3answers
1k views

How can I get infinity focus, both including the moon and a tree in the foreground?

I'm trying to take photos of the moon with other objects in the foreground but I can't seem to get both in focus. How far do I have to be from the tree to have pan focus (foreground and background in ...
3
votes
2answers
550 views

Does changing the focal length change the depth of field for the same magnification?

When taking pictures with lenses with the same f-stop and different focal lengths, and magnifying the same subject to the same size (by changing the distance), how does the depth of field vary? I am ...

15 30 50 per page