Not Your Everyday Banana

by Bart Arondson

submit your photo


Hall of Fame
View past winners from this year

Please participate in Meta
and help us grow.

Aperture is the opening in the diaphragm of a camera lens. For questions relating to Apple's photo management software, please use [apple-aperture] instead.

learn more… | top users | synonyms

5
votes
5answers
640 views

How can I shoot in a studio at the widest apertures?

I ran into a limitation while shooting a newborn baby this weekend. I was indoors next to a set of windows. I was also using an off camera flash on a stand through an umbrella. The flash was a Canon ...
2
votes
4answers
2k views

What is the best way to photograph a marathon?

I've had trouble finding information on how to best photograph action at a marathon. I don't mean tips for finding locations, ideas, etc, but rather technical tips for a beginning photographer to ...
3
votes
4answers
382 views

How is it possible to have shallow depth of field with a small aperture? (The tele-macro paradox.)

Some longer tele lenses have a macro mode that allows for really shallow depth of field that have a lot of background melting when using relatively narrow apertures; like f/4.5-6. I have tried and ...
0
votes
3answers
329 views

Image stabilization versus aperture [duplicate]

I want to do hand-held, natural-light photography in low-light situations, e.g. inside a room with a small window on a rainy day. No tripod, no flash. Canon claims that their "Optical Image ...
3
votes
2answers
441 views

What's the difference between real and effective aperture?

I understand that the simple idea that f-stop is focal length divided by aperture really applies to a simple single-glass lens, not the compound lens systems used to provide good image quality in ...
3
votes
4answers
908 views

Does micro 4/3 have an advantage in low light due to aperture equivilence?

Recent Micro Four/Thirds sensors seem to have improved their noise performance significantly. I own a Canon 5D Mark 2 full frame DSLR and am considering purchasing an Olympus OM-D EM5 micro four ...
3
votes
1answer
294 views

How do I properly understand what f-stop is? [duplicate]

I don't quite understand why most lenses seem to have approximately the same diameter aperture regardless of focal length. F-stop is, by definition, a ratio of focal length to diameter, so a 20mm ...
4
votes
5answers
631 views

How do I find the right motion blur/depth of field trade off in sports photography?

I could be wrong but when doing sports photography I'm always thinking about the following trade off: A fast shutter speed to freeze the action. A small(er) aperture to increase DOF and thus ...
4
votes
4answers
737 views

What is the optimal “default” aperture value in AV mode?

This is a very basic question.I am trying to learn how to use AV and TV modes with my T3i (after 2 years of shooting in Auto). What should I set my aperture to in order achieve the best results? I ...
0
votes
1answer
158 views

What are the biases in daytime and nighttime landscape mode?

What are the biases in day and nighttime landscape auto modes in terms of aperture, iso and shutter speeds?
6
votes
3answers
163 views

Does the time required to stop down the aperture affect the shutter response time?

In a (D)SLR. When pressing the shutter release button the camera must first move the diaphragm to the required setting. When a small aperture is selected it has to move it more than when you shoot ...
1
vote
4answers
279 views

Does an aperture value exist, where a lens creates a brighter image than the real view?

So (without limitations of the viewfinder for example) looking through the viewfinder creates a brighter image than normal view would be. The lens would then work like a funnel(collects light from ...
15
votes
2answers
758 views

Does a specific f number across all lenses denote same amount of light?

When we say a light source emits 1500 lumens of light, it does not really matter if the light source is incandescent, CFL, diode etc. Similarly, when I say f/1.8 can I assume that all lenses pass the ...
4
votes
2answers
2k views

Why does higher aperture (less light) make an image sharper?

Why does higher aperture, less light, make an image sharper? Or rather make everything in focus? And how does this lead to lenses having a sweet spot in sharpness?
1
vote
3answers
370 views

What's the difference between a closed and open aperture diaphragm for night street photos?

I'm capturing a picture during night and to a street with a lot of cars running over the street. What happens (in general, from a theoretical point of view) if I shoot the same photo under the ...
3
votes
1answer
112 views

Can custom (or any) function override aperture on a Canon 7D?

I'm a new owner (1 week) of a Canon 7D and a 28-135 USM lens. While experimenting and just shooting randomly, I was surprised to see my aperture setting (through the viewfinder) showing me a 2.8. Is ...
1
vote
1answer
13k views

How to change Shutter Speed and Aperture on Canon T2i?

I have a Canon T2i and I am having a hard time figuring out how to change the shutter speed and aperture. I have tried reading the manual but it seems to be a little unclear. Can someone please point ...
1
vote
3answers
347 views

Is it possible to calculate focal length if you know the aperture?

I need focal length (for my IA homework), but I didn't know that in real world I would only get the aperture. Ok, my camera is an Olympus X-21, and manual says: -----Olympus lens: 6.3 to 18.9 mm, ...
10
votes
2answers
897 views

How to stop a high F number from appearing blurry?

I have been out taking some evening photos (just after sunset) and I have noticed that in a number of instances the higher f numbers ( 14+ ) are appearing more blurred than the lower f numbers ( < ...
3
votes
1answer
217 views

RAW export in Aperture giving square “grid” pattern over noise

I have a RAW photo in aperture that has quite a lot of noise. When I export the photo to JPEG (and TIFF/PSD, 16 bit) I get a strange square grid like pattern on the photo. Here is an example of the ...
-2
votes
1answer
419 views

Why are some original files unavailable for export from Aperture?

I started using Aperture a year ago. I never spent any time watching Lynda.com or anything else, I just thought I figured the darn thing out, as far as downloading images. I plug my phone or Canon ...
1
vote
1answer
314 views

Aperture not stopping down on Tamron lens

I have an EF-mount Tamron 70-300mm f4-5.6 lens that seems to have developed a problem. On all focal lengths from 70mm to approx. 200mm, the lens works flawlessly. When the zoom ring goes above 200mm, ...
14
votes
2answers
799 views

DSLRs with separate controls for aperture and shutter?

I just bought a Nikon D3200 DSLR and I'm going to return it. It's fine if you always want to use in fully automatic mode, but in Manual mode, it's much less convenient. You have to set the shutter ...
6
votes
6answers
2k views

How does aperture size or shutter speed affect color temperature?

With all other parameters assumed constant, does aperture size or duration of exposure have any effect on the resulting color warmth or vividness? (Even slightly.) While answering please also ...
4
votes
9answers
742 views

Why would a serious photographer buy a lens slower than f/2.8?

It seems to me that the general idea is that, once you start getting to become a decent photographer and are really moving beyond your kit lenses, you shouldn't be looking at anything slower then ...
0
votes
0answers
36 views

Solid explanation behind the physics of the relation between aperture size and depth of field [duplicate]

Possible Duplicate: Technically, why is the out of focus area blurred more when using a bigger aperture? Many of us know that there is a relationship between the aperture size (f-stop) and ...
8
votes
2answers
281 views

Why dont I see a difference in the brightness through my viewfinder when I change the aperture?

If I change the aperture for a particular photo, why don't I see a change in the brightness of the image in the viewfinder?
6
votes
4answers
619 views

Does the same aperture at a shorter focal length allow for faster shutter speeds?

I was about to ask why the new Canon 24-70mm F/2.8L II doesn't have IS, but then I came across the answer to Why there is no Canon 50mm *IS* lens? and it got me thinking... (The short version of the ...
6
votes
1answer
633 views

Why does wide angle lens adapter + large aperture make images blurry?

I have a kit 18-55mm lens on my Canon. I also have a .45 wide-angle lens that I use on the kit lens. The results are fairly sharp. When I try to use the .45 wide-angle lens on the 50mm @ f/1.4, it ...
5
votes
1answer
659 views

What is the relation between shutter speed and exposure compensation in aperture priority?

I was using a manual focus lens with canon 600D and notice something in aperture priority mode. When I was applying the exposure compensation of -2EV, I had a shutter speed of 1/20 sec and when the ...
9
votes
3answers
1k views

Small Aperture difference - A big difference?

I had a second a second thought about asking this question because I have already asked a very similar question here but then I decided to proceed and make this one as different as possible. I ...
4
votes
3answers
1k views

How to make the faces clear and bright in dim light photography?

I have a Fujifilm Finepix S2980 with which I do a lot of experiments. One thing which really bothers me is taking pictures in dim light. I wish to take decent quality pictures in dim light without ...
1
vote
1answer
668 views

Why does my DSLR's viewfinder ignore the aperture ring on a legacy lens?

I have a Nikon D3100, and I am borrowing an old Nikkor 50mm SLR lens (http://www.destoutz.ch/lens_50mm_f1.8_1828564.html). I've had a lot of trouble with that lens, in that pictures that appear ...
3
votes
1answer
241 views

How is aperture handled when in live view mode?

When you are using the viewfinder, whatsoever the aperture value is, the lens will be in widest aperture until DOF-preview button pressed or half-shutter button.But what about the aperture value when ...
3
votes
3answers
742 views

How do I photograph the moon with a compact camera?

I have a point and shoot digital camera, with a 26x optical zoom and 10 mega-pixel resolution. What are the adjustments that I should do to get a nice photograph of moon in the night? What are the ...
8
votes
1answer
360 views

Why does my Zeiss Hasselblad Distagon lens have a 5 blade diaphragm?

As we are all aware, the more blades there are in a lens’s diaphragm, the rounder the resulting hole can be made, and in turn this gives a more natural looking bokeh. So on receiving my recent ...
7
votes
4answers
2k views

How important is a fast aperture in a wide angle lens?

I am looking for a good wide angle lens: I am looking at the Sigma 8-16. It has great reviews, by far the widest angle I can get on my camera. Only thing I am worried about is the relatively low ...
3
votes
1answer
477 views

Can a consumer-grade camera take good aurora pictures?

It's generally hard to take clear pictures of auroras because they are fairly dim and move around. To get enough light for a good picture, you need a long exposure. But then your picture will be ...
3
votes
2answers
1k views

What would be a good indoor setup to find a lens's sharpest aperture?

I read the whole of How do you find out the "sweet spot" of a lens? — great question and answer, but it didn't discuss a potential homemade rig for finding the sharpness aperture of my ...
2
votes
1answer
163 views

How do aperture and the tilt portion of a tilt shift lens relate?

I have found that you can use the tilt feature of a tilt shift lens to do some pretty neat things with depth of field. I can throw it 8° to the right and everything on the left side of the image drops ...
3
votes
2answers
218 views

Is there a difference in sharpness between aperture stops?

Is there a notable difference in sharpness between aperture stops of a lens? If so, where can I find that information for my Canon 550d Kit lenses?
1
vote
2answers
875 views

Fixing F number in Manual Focus 50mm lens on a D7000

I have a 50mm f/1.2, this lens: http://www.nikonusa.com/Nikon-Products/Product/Camera-Lenses/1435/NIKKOR-50mm-f%252F1.2.html that I got used from a guy I know. When I mounted it in my D7000 though, ...
7
votes
3answers
898 views

how the camera determines correct aperture and ISO in bulb mode?

Consider that the camera is in shutter priority and the exposure time is set to bulb mode. Now the camera doesn't know how long the shutter is going to be open in advance and so how does the camera ...
2
votes
1answer
192 views

Why do the Nikon V1 lens' websites seem to give different f-stops than the lenses? [duplicate]

Possible Duplicate: How can aperture be f/11 on a lens with an aperture range designation of 3.5-5.5? I am a recent (and so far quite pleased) owner of a Nikon V1. I am in the process of ...
1
vote
3answers
572 views

How to calculate f-stop and ISO equivalents for a Lomography Spinner 360°?

In this review, there's this paragraph explaining f-stop and ISO equivalents: The two aperture settings are marked with the sunny and cloudy symbols which equate to f16 and f8.0 respectively ...
9
votes
2answers
3k views

Why don't comparisons of aperture take sensor size into account?

When one compares focal length, many times we use the 35mm equivalent length. A 50mm lens on an APS-C sensor camera(1.6x) would be a 80mm equiv. length on a full frame camera. But when we state the ...
4
votes
4answers
1k views

What are the types of aperture blades?

The Canon EF 24-105mm f/4 L USM IS lens has rounded aperture blades. What other types of aperture blades are there, and what are the advantages and disadvantages of each of them? Is the aperture ...
2
votes
3answers
188 views

DOF and picture quality

Is it possible to say that picture quality is better with small f number but on very small DOF, so this perfect quality degrades very quickly? So basically is there any reason to shoot with big ...
0
votes
1answer
971 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?
10
votes
2answers
393 views

Max aperture on zoom lenses - stepwise or linear?

When zooming with lenses without a fixed max aperture, the change in aperture* that the camera displays is stepwise, usually in steps of thirds. But, is the max aperture really the same all the way as ...