Nidelva river through Trondheim Norway

Nidelva river through Trondheim Norway
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Focus is the mechanism of converging light from a point light source onto an imaging plane by a lens.

learn more… | top users | synonyms

3
votes
2answers
787 views

How to do focus stacking with Sony A7?

It seems that software like helicon remote or EOS utility which allow you to pick focus points remotely make focus stacking so much easier. I couldn't find anything like that with Sony A7. Even's ...
0
votes
0answers
31 views

Technique behind miniature look [duplicate]

What is the name of, and the technique behind, images of real scenes that looks like miniatures, like the one shown here? To me, at least, it looks like a photograph of a model, not a real scene. Is ...
21
votes
3answers
2k views

Why am I allowed to turn my focusing ring beyond infinity?

Is there a good reason why I can turn the focusing ring on my lenses beyond infinity mark on focusing scale? Following recent questions here and here, it sounds like a real usability issue. ...
5
votes
4answers
77k views

How can I fix an out-of-focus blurred photo in Photoshop?

How can I fix this picture? Somebody else took this picture and well he wasn't able to do it very well, and it's blurred. I have photoshop
0
votes
1answer
98 views

Focus Issues With L-Series Lens

I have a really frustrating issue with a Canon 24-70 ƒ4 L Series Lens. I noticed that it was unable to focus at or near infinity except at the wide end (when used with my 5D Mk3). When focused ...
0
votes
1answer
95 views

Is there any way of saving this blurry photo??? [duplicate]

http://i.imgur.com/Lb9FXGe.jpg Is there ANY way to save this blurry photo? I have photoshop. PLEASE HELP.
3
votes
2answers
115 views

What's a good method to autofocus on close subjects while shooting from the hip?

Context I like to take photos of dogs using a wide angle lens on a Canon 60d, with a fast shutter speed, AI servo mode and continuous shooting mode on. I'm usually holding the camera low to the ...
1
vote
5answers
289 views

35mm prime lens — photo taken is not sharp in manual focus mode [closed]

I bought a 35mm 1.8 Nikon lens and am using this lens with D3200. I placed a ball on the floor and some 100 cm from the lens. I set the lens to Manual mode and aperture to 1.8, in Aperture Priority ...
3
votes
4answers
145 views

How can I focus quickly outdoors in the dark?

I was with my family at a seaside, late and in darkness. My nephew and niece were playing in the water and running around, and I wanted to take picture of them, but my autofocusing system was taking ...
22
votes
2answers
2k views

Why is infrared light's focus point different from that of visible light?

When reading about infrared photography, it's often mentioned that IR's focus point is slightly different from visible light. Why is the focus point of infrared light point different from the focus ...
2
votes
4answers
295 views

How can I take better pictures in theatre fog?

I am taking still and video photography for a film production. It is set inside a theatre that is filled with light fog. I somehow can't get sharp focus and because of the low light I can't up the ...
1
vote
2answers
141 views

How can I focus when my camera is on a tripod and none of the focus points line up?

Today I was shooting two persons with my camera (Canon 7D) on a tripod. One person, the one I wanted to be in focus, was composed so far out of the center that I don't have any focus point close to ...
3
votes
7answers
191 views

How to reduce noise shown in LiveView when photographing in the dark?

At night, when I want to take photos, I usually use LiveView to focus instead of the optical viewfinder. So I set my camera on a tripod, go to LiveView and use manual focusing to get the focus. But ...
0
votes
1answer
46 views

How do I manually focus my Nikon P520?

Can I manually focus a Nikon P520, and can I set infinity as well? I've looked at the manual settings and I cannot find the answer.
0
votes
2answers
292 views

What to do when NIKKOR 55-200mm lens behaves like it is not attached to the camera, even though it is attached?

I just purchased a Nikon D5500 with the 18-55mm and 55-200mm lenses, along with one digital high-def 2.2x teleconverter and a digital high-def .43x super wide angle lens with macro filter. The ...
4
votes
2answers
179 views

How can I more consistently focus on the point I want?

I've had so many wonderfully composed images turn out lousy because my AF isn't as accurate as I'd like (or I don't know how to wield it). Despite using single-point AF, my focus point is often ...
2
votes
1answer
105 views

Can Minolta lenses obtain infinity focus when mounted on a Canon camera?

I know this isn't the ideal setup but I have access to a good selection of Minolta glass so I can try it without any expense. I've got a Canon 600D, a "Minolta Sony Alpha AF Mount Lens to Canon EOS ...
4
votes
3answers
575 views

Does focal length change when I adjust the focus? [duplicate]

When I adjust the focus of my camera, in general, does this affect the focal length? I have heard that it does.
0
votes
0answers
102 views

Help!!! How can I deblur a wedding pic? [duplicate]

I have an absolutely beautiful photo from my wedding but it was taken by my cousin and is badly out of focus. :( Any ideas on how I could fix it? I'm not at all talented with computers so any help ...
68
votes
15answers
14k views

How does one focus for landscape photos in very dark conditions?

Tonight I tried my best to take some night landscapes in the darkest of dark conditions. Hoping for an epic composition of the Milky Way and a landmark. Of course, none of my glass could auto focus ...
0
votes
3answers
85 views

How do I focus while using an intervalometer?

Normally when I shoot 20- or 30-second exposure pictures, I use a timer--I first focus on a light source and then change the focus towards whatever I want to shoot. But this technique is not working ...
6
votes
5answers
1k views

How can I get sharp images using optical zoom function on a point-and-shoot?

We’ve got a point-and-shoot (Canon A590 IS), and it seems that the zoom function is completely useless because it is always blurry, even in broad daylight. For example, I tried to take a picture of a ...
2
votes
2answers
139 views

Are deconvolution filters better than unsharp mask for correcting out-of-focus photographs?

What is the best method for enhancing image quality if a photograph happens to be out of focus? I'm using now unsharp mask but I'm looking for new methods. Perhaps there is one which has better ...
1
vote
1answer
804 views

What should I do if my Canon 24-105 f4 L is making focus-seeking noises but not focusing?

I have a Canon 24-105 f/4 L lens. Just today, it started having focusing problems. The problem does not manifest if the focus is easy: bright light and centre focus point is on a good contrasty ...
0
votes
1answer
1k views

Best AF Fine tuning for Nikon D7000 lenses [duplicate]

Over the last few months I've been noticing an annoying back - focus problem on my Nikon D7000, regardless if I was using a AF-S or AF lens. But the problem seems to happen more often on my 35mm 1.8G ...
0
votes
1answer
175 views

How do lenses focus? (and zoom?) [duplicate]

My understanding of focal length is that it is the distance from the lens to the sensor; in my observations: higher focal lengths make for longer lens. Then I started thinking about how a lens ...
3
votes
2answers
227 views

Which focus mode should I use for a portrait shoot?

I have to do a portrait shoot for a friend. My camera (Pentax K-30) allows me to focus in the following modes: 1 focus point (center) 11 auto focus points 5 auto focus points I haven't yet ...
1
vote
1answer
103 views

Can I achieve infinity focus from Auto focus? [duplicate]

I have a 18-55mm zoom lens with no Infinity symbol on it. Let's assume I want to capture stars in night. There are three ways to do it (If I am not wrong) Use Auto focus (If your camera is able to ...
0
votes
2answers
111 views

How do I prevent my camera/lens from focusing on only a subject? [duplicate]

I have a Canon 70D and am using a 50mm lens. I want to prevent it from focusing on a subject all the time. Instead, I want everything to be in focus like you get with a kit lens (18-135 etc.). I have ...
1
vote
2answers
386 views

Manual focus working in AF Mode with an STM lens - is this intentional?

On my new Canon T6s/760d with 18-135 STM lens, I just noticed that in AF mode, when I hold the shutter button halfway, if I turn the focus ring on the lens, it does affect the focus! I preferred to ...
1
vote
4answers
5k views

Nikon D3100 Won't Take Photo — says light is too low

I've had my Nikon D3100 camera for about 3 years. I recently accidentally reset my shooting options. Since I've done that, I'm having a hard time getting the camera to focus and take photos in lower ...
0
votes
2answers
255 views

Focus problem in viewfinder mode with the tamron 17-50 f2.8

I bought my 70d and the Tamron SP AF 17-50mm F/2.8 VC. I noticed that I don't have focus when I use the viewfinder but when I use the live view there is no problem at all. Someone might come across ...
0
votes
4answers
116 views

Autofocus not working outside scene modes

I've just got my first DSLR (an old Canon 1000D) and I'm having problems with autofocus: When I'm in full auto or any scene mode (sport, portrait...) it works fine and I can make photos normally, but ...
0
votes
0answers
90 views

600D Lens Don't Move back and front

My camera lens recently started losing focus. When I press the shutter halfway, the lens just doesn't respond and adjust focus. The flash flickers an electric sound and light but then the camera ...
-3
votes
1answer
115 views

What setting do I use for a 70-300 lens? [closed]

I have a 70-300 lens and I tried taking a picture of a ship on Lake Michigan. The Picture was blurry and I was using a tripod, What settings do I need to have my camera set on to get nice clear ...
0
votes
1answer
60 views

How do I work around a problem where my lens won't focus on distant objects?

I have a Pentax K10D with a 28mm lens that will not focus on distant objects. Will an extension tube solve this problem? I do not care about autofocus. Is one tube better than another for manual ...
2
votes
1answer
227 views

How does manual focus work using Leica lenses on other mirrorless cameras such as Fuji XPro1?

I used to own a Leica M4P, now I have gone digital with a Fuji X100. I love the X100 but the autofocus gives me so much trouble for street photography and its manual focus is terrible. I really ...
8
votes
4answers
2k views

How can I take photographs with a large depth of field without diffraction?

I was looking at some pictures by TSO Photography, and I was struck by how everything in the image seems to be sharp and in focus. I do realize that to achieve huge depth of field, you set the ...
9
votes
5answers
9k views

What is the best auto-focus mode to use for bird photography?

Consider the image below: How would the shot be focused here? Using Auto-focus or manual? If there was a cluttered background, will auto focus detect the small bird and sharply focus on it?If manual ...
5
votes
1answer
161 views

Background warping through foreground defocus

I came across this effect the other day, and have spent the better part of the last week trying to figure out exactly what is happening. When photographing two layers, with the foreground in front of ...
0
votes
0answers
35 views

Does the Sony wireless remote commander (hardware, not the app) focus before firing a shot in Manual?

I have a Sony NEX-6 and the wireless remote commander (Please note: it is the hardware not the app). Last night, I was taking some night shots in Manual with the camera on a tripod. I set the camera ...
0
votes
1answer
116 views

Getting a sharp focus on a 50mm when the subject is at 5m - 10m [duplicate]

I'm a novice photographer with a 450D/XSi. I'm using a 50mm/1.8 prime lens to start out and I noticed that a lot of times my pictures end up not being sharp for stationary scenes. I was mostly using ...
2
votes
3answers
187 views

How to overcome auto-focusing problem in event photography?

The biggest issue for event photography I have noticed is camera not getting auto-focus at correct time. The moment you have to capture the camera is still focusing. If it would be landscape ...
2
votes
1answer
904 views

Is it possible to get bokeh in cellphone photos?

I have wondered how to get some parts of the image out of focus when using smartphone cameras (or if it can even be done). Recently found out about the concept of bokeh, and am interested in ...
0
votes
2answers
116 views

How to take a photo of a close-up object without focus stacking?

I'm trying to get into product photography and took some fun shots. I'm talking about shots of my iPhone and things like that. What I quickly realize is that I am unable to get enough DOF. I'm using ...
0
votes
2answers
1k views

Is a Canon 50mm 1.4 lens only meant to focus close range?

Ok, so I currently shoot with a canon Rebel which of course has a 1.6x crop factor. My primary lens is Canon's mid-level 50mm f/1.4. I love this lens for close up portraits and can get a very sharp ...
3
votes
1answer
304 views

Are there cameras that autofocus during an exposure?

The origin of this question is related to panning. I was trying to explain why panning is more effective for subjects moving across your FOV at right angles, vs. a subject whose distance to the ...
29
votes
8answers
17k views

How to nail focus for DSLR astrophotography?

I've been doing a bit of astrophotography and the problem that I almost always have is nailing focus. I'll manually focus on a bright star or the moon (which hopefully isn't an option!) by magnifying ...
26
votes
5answers
3k views

What tips and advice do you have for photographing the Aurora Borealis?

A friend has been kind enough to lend me a DSLR for a few months. It's my first foray into DSLR photography, or indeed any kind of photography beyond simply aiming my Canon IXUS at something and ...
11
votes
3answers
3k views

Can I combine several low quality pics into one higher quality picture?

Is there an easy tool to combine low quality pics taken from a mobile phone, all of the same thing but taken within a few seconds interval from one another, mostly suffering from slight out of focus ...