Spring 2012

Spring 2012
by ani

Submit your Photo
Hall of Fame

Please participate in Meta
and help us grow.

Depth of Field is the depth of a scene that is "in focus" as perceived by the eye.

learn more… | top users | synonyms

3
votes
1answer
123 views

Depth of field in macrophotography: stepping back + crop Vs reducing aperture?

There are multiple ways to increase depth of field (DoF) in macro photography. I know about focus stacking, but I have a question about which way is best for a single-shot. Two common options are: ...
1
vote
1answer
59 views

Mathematical relation between aperture and DOF [duplicate]

I know that aperture and DOF are inversely proportional. But, can anybody explain to me the Physics/Optics behind that? What's the mathematical relation that relates aperture with DOF?
0
votes
2answers
125 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 ...
0
votes
3answers
580 views

How is depth-of-field affected on micro format cameras? [duplicate]

One of my favorite qualities of large apertures (besides the low light capability) is their characteristic shallow focus that can offer dramatic background blur. I've been considering how a micro ...
3
votes
3answers
146 views

Help with Scientific Cannabis photography [duplicate]

I work in a marijuana testing lab in Washington. Part of our workflow is to capture an image of each sample as it is weighed, for later reference/analysis. We're pretty excited to be creating high ...
0
votes
0answers
24 views

What does it mean to be out of focus [duplicate]

I have browsed dozens of photography and noticed that only a handful actually try to reconcile the photography world with the real world. My ultimate goal is to be able to easily explain to anyone, of ...
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 ...
0
votes
0answers
26 views

Anyone using the HX400 v? [duplicate]

Can we shoot photos with a very shallow depth of field with this cam? ; with only the subject is in focus..?- within any focal length/zoom level? In some places it's said that this cam can't shoot ...
5
votes
1answer
163 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
2answers
119 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 ...
6
votes
1answer
3k views

Is a depth of field preview button a must-have feature on a camera?

How much does the DOF preview matter? Is it a must-have on a DSLR? Do the Nikon D5300 and D5500 cameras have a depth of field preview button?
0
votes
2answers
117 views

How to set up an object for blur photography in domestic environment?

I am having a Nikon D5300 with 18-55 VR lens. As this tutorial shows, it shows how to shoot portraits with blurred background. But, the background is located far off from the subject. Can I somehow ...
14
votes
6answers
2k views

Could I have taken this landscape shot better with my P&S, or do I need a better camera?

Edit: Since coming back from Australia, I had my eye on a Sony a5100 for a while, and I bought it in the Amazon lightning deals. I have to say, the Sony takes much better pictures in terms of detail ...
32
votes
2answers
5k views

What is “bokeh panorama” (also called the “Brenizer method”)?

Somewhere I don't remember, I heard about the Brenizer method. After reading a few sites, there is no consistent information about what it is exactly, or what the procedures are to apply it, so: ...
6
votes
2answers
188 views

How does a camera artificially decrease DoF of a shot from a single position?

Some cameras with small sensors can artificially blur image background provided there's an object in the foreground. FujiFilm calls it Pro Focus filter. I'm not sure if the camera makes one or two ...
0
votes
1answer
196 views

How do I get a two person portrait with the background blurred using a DSLR and 50mm f/1.8 lens?

I am new here. I have a Nikon D5300 body and a Nikon 50mm f1.8 AF-D lens(not AF-S). I want to do this: Two persons sitting in front of a table facing the camera. I want the table and both persons in ...
0
votes
2answers
119 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 ...
28
votes
6answers
18k views

Why does a bigger sensor lead to a shallower depth of field?

It has been mentioned at a few places that a larger sensor results in images with a shallower depth of field. Example image: APS-C Canon 30D left, FF Canon 5D right, same lens, same composition, ...
2
votes
3answers
360 views

Why should I use the widest aperture for star photography?

Well, this question may sound dumb to some folks but I am really confused here. I was reading this article about Photographing Stars Using a Kit Lens where author talks about keeping widest aperture ...
2
votes
3answers
669 views

Lack of sharpness: is it me, or my zoom lens?

I am specifically talking about Nikon 24-70mm f 2.8 lens Here is the picture I took with that: And here is another one I took with my prime lens Nikon 85mm f 1.8 I think this one is sharper and ...
14
votes
4answers
5k views

How can a super tiny iPhone 6 Plus lens produce significant DOF?

According to Apple specs the iPhone 6 Plus thickness is 0.28 inch (7.1 mm) and the lens length is only a part of that. And according to an article I found, Depth of Field is a function of "aperture (i....
1
vote
0answers
31 views

For the same attainable sensitivity, how does DOF depend on sensor size? [duplicate]

It's well known that all other settings being the same, larger sensor translates into a shallower DOF. However, for the same number of pixels, doubling linear size of the sensor size would quadruple ...
1
vote
3answers
631 views

How to achieve sharp focus on two subjects in a portrait with low depth of field? [duplicate]

I prefer to have a very narrow depth of field. Whenever I am focusing for portraits of too people standing near to each other, the focus-point-selected person is sharp, while the person standing next ...
3
votes
6answers
1k views

Why don't we focus at the nearest hyperfocal distance to get everything in focus?

I came across this article, and it says that if we focus at a hyperfocal distance, then everything from half of hyperfocal distance to infinity will be in focus. Then why don't we set the focus ...
2
votes
2answers
5k views

Focusing on hyperfocal distance with Nikkor 35mm f/1.8G prime lens [duplicate]

I have a Nikkor 35mm f/1.8G lens on a Nikon D7000 body. I have a theoretical understanding of hyperfocal distance. And it seems like the lenses with an clear indication of "infinite" focus point are ...
3
votes
4answers
506 views

What kind of lens is typically used for these type of night street shots?

I've been trying to duplicate the depth of field like in these photos on snowy nights and I'm not getting comparable results. I'm using a 35mm prime lens at f/1.8 on a D3100. So my question is: Are ...
1
vote
2answers
221 views

Large DOF in low light for portrait in front of a landscape?

I am using a Nikon D610 and mostly I can get nice landscape shots with long exposure (with f/8-f/11) range using a 35mm f/1.4 lens. However now my issue is, I want to take pictures of a person in ...
1
vote
2answers
352 views

Comparison of DOF between a 30mm f/1.4 and a 35mm f/2 lens

I would like to buy a wide-aperture lens for an APS-C DSLR (Canon EOS 500D, crop factor 1.6x) with equivalent standard focal length. However, I was unable to decide between Sigma 30mm f/1.4 and Canon ...
1
vote
1answer
1k views

Does the Canon EF-S 24mm f/2.8 STM Lens offer any significant advantage over the Canon 18-55mm IS II at a 24mm focal length?

Does the Canon EF-S 24mm f/2.8 STM Lens offer any significant advantage over the Canon 18-55mm IS II at a 24mm focal length (the kit lens for my T3i)? I'm looking for a cheap lens that offers a wide ...
4
votes
4answers
301 views

Is it possible to get smaller aperture with diaphragm in front of the lens?

My camera has narrowest aperture of f8. To increase depth of field, could I place an opaque "filter" or lens-cap with a small hole, e.g. 12 mm for f16, on the lens? I realize that at short f.l. the ...
2
votes
3answers
241 views

What is the best lens for shooting flat surfaces?

For a long time, I was making closeup photographs of flat surfaces using my cropped DLSR and Canon EF 50/1.4 lens. The scene was illuminated by an external flash. The focusing distance was the closest ...
2
votes
3answers
571 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?
0
votes
3answers
226 views

What exactly happens when one turns the focus ring on a DSLR while shooting video?

I'm about to buy my first DSLR and I'm trying to understand every single aspect of it. If I've got a prime lenses and I'm shooting a video with f/2.8 aperture, I'm going to have a fixed depth of ...
6
votes
2answers
607 views

Is using a large aperture with flash uncommon?

I found How can I use wide aperture with fill flash? and How can I use flash with large apertures? while trying to find a solution for using a large aperture to get DOF with the flash setup I have. ...
1
vote
8answers
4k views

Is an aperture range of 3.5-5.6 shallow enough to provide great bokeh on a cropped sensor?

I have been primarily shooting with a Canon 18-135 f/3.5-5.6 for several years now, and I am not completely satisfied with it. The problems I have are: A bit too wide on the low end A bit too short ...
13
votes
6answers
9k views

Technically, why is the out of focus area blurred more when using a bigger aperture?

I'm wondering, technically, why and how does the out of focus areas blur more when using a bigger aperture. I think it'd help a lot if I presented a problem that's been driving me nuts for a long time:...
10
votes
6answers
6k views

Will a lens with a low aperture value give me better portrait photos?

I want to take pictures of people from 5-20 feet away. I attend lots of group events and am free to walk around and snap photos. I just purchased a Canon t3i and it comes with a 18-55mm kit lens. The ...
1
vote
3answers
1k views

Why are big apertures used for landscape photography?

If it is true that a large aperture means shallow depth of field..a.k.a near objects in focus and background or far objects in blur, then how come big aperture is recommended for landscape photography?...
36
votes
12answers
27k views

How can I get dramatic shallow DOF with a kit lens?

I'm currently using an entry-level DSLR with 18-55mm lens and having great trouble trying to creating a blurred background effect in my photos. Now matter what aperture or shutter speed I choose, I'm ...
0
votes
0answers
46 views

Not able to achieve shallow dof with aperture of f/4 in nikond5200 [duplicate]

I set my aperture to 4 and yet I cannot blur out the object that is 10 ft away. Everything is in focus. I only wanted the near object which is 3 ft away to be in focus.
1
vote
2answers
217 views

Big sensor and landscape photography, DoF

I've been an owner of point & shot cameras for some years. Now, I'm considering to move to bigger sensor cameras (4/3, asp-c) because I really hate the noise that small sensors produce on low ...
5
votes
1answer
462 views

Is it possible to get tethered focus and aperture control with any current DSLR?

I'm looking to get into some photography work and I had a couple questions. I'm quite an amateur at this, unfortunately, so I would appreciate any and all assistance! I want to be able to control the ...
2
votes
2answers
135 views

Invariants in subject size and depth of field? [duplicate]

I was curious if I could cheat my way around having to focus stack an object by using different lenses. Playing with the Depth of Field calculator I noticed something interesting: No matter what ...
34
votes
7answers
3k views

What is “Hyperfocal Distance”?

I'd like a clear & easy-to-understand (especially for non-physics-types) explanation of what Hyperfocal Distance is, how it affects photographs, and what determines its value.
1
vote
1answer
568 views

How to calculate depth of field by using extension tubes

I am using Nikkor 105mm f/2.8G and its close focus is: 1 foot (0.314m, 31.4 cm). And depth of field for this distance is about 0.5cm (I have an application on my Android phone). How will change depth ...
4
votes
2answers
276 views

Use of DOF adapters in stills photography

The camcorder guys figured out long ago how you can get the shallow DOF of a larger sensor system (typically full frame) on a camcorder equipped with a much smaller sensor (typically 1/2.8") by doing ...
0
votes
0answers
39 views

Does a smaller sensor give shallow depth of field? [duplicate]

I have read that a full frame sensor gives a more shallow depth of field if using the same lens as on a crop frame sensor. Is this true? What I actually want to know is how does this relate to a point ...
11
votes
2answers
6k views

How can a Frazier lens achieve that massive DOF?

I've read in PetaPixel about this "Frazier lens" that can achieve a massive DOF. In this video is shown the capabilities of this lens and I must say I'm very impressed. How can this lens achieve such ...
14
votes
6answers
8k views

How do I find a point-and-shoot camera specifically for bokeh / a very shallow depth of field?

I will be getting a point-and-shoot camera for taking portraits and only portraits. Specifically portraits with a shallow depth of field. Groups portraits sometimes. It's just too much work to add ...
2
votes
2answers
229 views

What determines the sharp parts in an image: the DoF or the focus point?

I am a little bit confused between depth of field (DoF) and focus points. Which of them is responsible for making part of the image sharp?