Linked Questions

5 votes
3 answers
1k views

Is aperture the same on different format of lenses?

I have just acquired a large format lens (a Schneider-Kreuznach Angulon 1:6,8/90) for the first time, coming from 35mm and medium format, and I am a bit puzzled by its aperture. I want to make sure I ...
Bastian's user avatar
  • 153
1 vote
2 answers
424 views

Why can't my newer cameras focus on my hands and something behind them at the same time? [duplicate]

I've got this thing where I go around the world and hold their famous monuments with my hand through perspective photography. For example, holding the learning tower of Pisa. The pictures I've taken a ...
archytect's user avatar
  • 111
2 votes
4 answers
8k views

What is the formula for determining where infinity focus begins?

I'm having difficulty find any info on determining where infinity focus begins. I'm assuming there's a formula involving focal length and... Can anyone help?
user avatar
2 votes
3 answers
435 views

Better 10-22mm lens for Canon

The famous Canon 10-22mm lens is quite well-built. The image is sharp near the corners, and it has a fast auto-focus system. But unfortunately, it's aperture is relatively narrow... Would there be ...
Skippy Fastol's user avatar
0 votes
2 answers
5k views

What impact on image resolution does the aperture have?

What is the effects on depth of field, signal to noise ratio and image resolution when reducing the aperture?
chwi's user avatar
  • 151
2 votes
4 answers
606 views

Have a Nikon 18-200 VR lens ..want to buy a new lens for super DoF

I have a AF-S DX NIKKOR 18-200mm f/3.5-5.6G ED VR II and am planning to buy this AF NIKKOR 50mm f/1.8D does that make any sense? I'm interested in taking pictures that has lot of DoF. Something ...
Broken Link's user avatar
3 votes
4 answers
353 views

Why is my subject still out of focus when it's inside the range shown by a depth of field calculator?

In a depth of field app, I entered my camera's sensor size, focal length of 50mm, aperture of f8, and focus distance of 6 feet. The app tells me that DoF is 2.1 feet, from 5.1 to 7.2 feet. I then ...
adwb's user avatar
  • 163
2 votes
2 answers
1k views

"Focal Distance" / "Depth of field" of endocsopic and (car) backup cameras

In a nutshell, my question is: Why is the depth of field for endoscopic cameras so limited? It seems it is generally around 3 to 8cm (some are around 3 to 40cm). Why aren't they similar to automobile ...
Self Evident's user avatar
0 votes
3 answers
3k views

Understanding focus distance of Nikon f/1.8D lens with D5600 Camera

I took some sample photos using my Nikon D5600 camera with Nikon f/1.8D lens. I had to set the focus manually since this lens doesn't provide AF with my camera. My Question: The album of my sample ...
skm's user avatar
  • 271
0 votes
3 answers
2k views

Why are my photos taken with the Sigma 18-50mm f/2.8 coming out blurred?

I'm new to photography, and I don't know why the pictures I'm taking are coming out blurred. Here's a sample image, taken with the Sigma 18-50mm f/2.8 on my Nikon D5200 at 18mm, 1/60s, f/2.8 and ISO ...
marsel's user avatar
  • 1
1 vote
1 answer
2k views

Software to combine multiple similar photos and choose the best parts from each

Note: This question was originally posted on Software Recs, but due to lack of activity I'm reposting it here. Windows Live Gallery had a great Photo Fuse feature that allowed you to select multiple ...
Amr Bekhit's user avatar
3 votes
1 answer
2k views

Taking pictures with fixed/full focus camera

I have got a fixed focus, 5 MP camera with 3.3mm focal length (not sure what it means) on my phone. I want to know what's the best way to take pictures with since it's missing auto-focus feature. Is ...
user12541's user avatar
1 vote
3 answers
954 views

DOF change when keeping subject size same in the frame

What I have heard is you get more background blur (narrow DoF) with lenses with longer focal lengths. And another thing to get narrow DOF is the distance between the subject and the sensor, the lesser ...
samsamara's user avatar
  • 153
3 votes
5 answers
438 views

How can I take portraits where more DoF appears in front of the subject than behind?

This photo has been processed, of course. More importantly, it seems that DoF is more on the front of the subject than on the rear side. What type of post-processing and lens is suitable for producing ...
sherlock's user avatar
  • 683
0 votes
2 answers
2k views

The best setting for Canon 70D for my application

I'm an robotics engineer and do not have any experience in photography. For a project, I need to take some pictures of some objects and need your experience to set the optimal setting because my ...
Mechatronics's user avatar

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