Linked Questions

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2answers
2k views

What are appropriate Circle of Confusion values for high-megapixel cameras? [duplicate]

Since the film days we have used 0.03 CoC for determining depth of field and similar calculations. In digital terms, does this best match with 6 or 12 or 24 or 36Mpixel full frame sensors? If this ...
2
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4answers
1k views

What kind of lens to use to get sharp images of people from a distance?

I am looking to buy a new lens and want something that will produce sharp images of people from a distance. I currently have a 50mm prime lens and my close-up portraits are great - crisp and clear - ...
2
votes
1answer
553 views

Do crop sensors increase the depth of field when using full frame lenses?

I'm trying to achieve maximum depth of field without sacrificing light. I have a micro-4/3rds camera and i want to attach a full frame lens to it for the large and constant aperture. My question is, ...
0
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3answers
883 views

How to get someone razor-sharp from head to toe from a distance of 12 feet (3-4 meter)?

I have tried several apertures, but I still can't get the entire body of the subject to be super-sharp. When the subject extends the arms, I find the hands to be less sharp than the eyes. I'm using a ...
3
votes
2answers
324 views

Shallow DOF: continuous or single AF mode?

When I take a portrait with settings which result in a DOF shallow enough that the subjects' movements risk missing focus on the eyes, should I use continuous AF mode - is the continuous AF fast ...
-1
votes
3answers
314 views

What's an easy to use “large sensor” digital camera?

My friend tried out my Pentax K-x and found that it was not as easy to use as he preferred. He has no interest in becoming a hobby photographer, he merely wants a camera that is easy to use and takes ...
0
votes
1answer
588 views

How to achieve sharpness on image [duplicate]

I'm new to photography and got my new 50mm Nikkor f1.8g for my DX camera D5300. I've taken first Portrait photoshoot of my friend in an outdoor park which looked nice on my camera screen. But when I ...
0
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2answers
447 views

does depth of field travel with the focal plane?

for simplicity it can be assumed all of the following discussion is relative to a prime lens i recently learned about the technique of hyperfocal distance focusing. that is, by using the method to ...
1
vote
2answers
192 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 ...
2
votes
3answers
147 views

Take a telephoto portrait without background blur?

Is it possible to take a portrait of someone with a telephoto lens (for example 85 or 135mm) without any background blur (or at least with minimal blur)? I am planning to take portraits of somebody ...
5
votes
1answer
505 views

For digital sensors and in terms of imaging medium, is the minimum CoC equal to the size of 1 sensor pixel or 2? And why?

For digital sensors and in terms of imaging medium, is the minimum CoC equal to the size of 1 sensor pixel or 2? And why? For example purposes using a 35mm Full Frame digital sensor where the pixel ...
0
votes
2answers
461 views

How is depth of field usually measured and how can I get depth of field measurements for a lens

I really like a deeply washed out background as a backdrop. I expect using a 35mm film camera that f-stops is inversely related to depth of field. I assume this remains true for compound lenses. But ...
1
vote
2answers
313 views

How do I get focus right with a moving subject with a bridge camera like the Panasonic FZ 70/72?

I would like to know if I act right. Scenario: moving subject (animal, airplane or sport scene). I get my bridge camera, a Panasonic FZ 70/72. I focus (with autofocus) the subject pressing half ...
0
votes
2answers
580 views

How to achieve photo with no blurred background [duplicate]

When zooming I want to keep background not blurred. Is this even possible? I will have multiple cameras pointing at one object from different distances can I get a flat picture on all of the cammeras ...
1
vote
3answers
252 views

Why can I get sharp single person photos but not group photos?

I am just starting out in photography and when I am focusing on one point (like a single person portrait), I can get really sharp photos. However when I am photographing a scene or a group of people, ...

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