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

3
votes
5answers
3k views

In what kind of scenes does it make sense to use f/1.4 aperture?

I have been told that it is difficult to focus with an aperture of f/1.4. So, in which kind of scenes does it actually make sense to use the f/1.4? In portraits they say that it is important to keep ...
1
vote
1answer
643 views

Why does the max aperture change when use Nikon 60mm AF-D Micro on D90 camera?

I have found that my Nikon 60mm Micro AF-D changes aperture from 2.8 to 3.2 when used with a D90. I have tried both A and M mode. Is it by design? Why? I intend to buy Nikon 50mm 1.4 AF-D, but it ...
3
votes
1answer
597 views

Does maximum aperture change with focus distance with the Canon 60mm f/2.8 macro lens?

This site says The Canon EF-S 60mm f/2.8 Macro USM Lens loses 1/2 stop at 1:5, 1 stop at 1:3, 1.5 stops at 1:1.5 and 2 stops at 1:1 (lifesize). Can anyone confirm that at 1:5 magnification, ...
-1
votes
1answer
177 views

How do different apertures affect photographs? [duplicate]

Possible Duplicate: What is aperture, and how does it affect my photographs? As an amateur photographer, can someone explain to me how different apertures affect photographs?
7
votes
3answers
397 views

What is the limiting factor in lens construction when it comes to f-stop values?

This widely praised Nikon 105mm macro lens has a maximum f-stop value of 2.8. I've held it in my hands, it's a big lens. Meanwhile, this 50mm Nikon lens can go up to f/1.2, despite being 25% cheaper ...
0
votes
0answers
89 views

Technically what happens that aperture affects Depth of field [duplicate]

Possible Duplicates: What exactly determines depth of field? Technically, why is the out of focus area blurred more when using a bigger aperture? It is obvious that the aperture affects ...
11
votes
4answers
2k views

Is overall light gathering of a lens only dependant on aperture?

My impression is that the aperture value of a lens determines its light gathering ability, but I'm not sure I understand how it works... When considering light gathering in telescopes, it is ...
0
votes
1answer
167 views

Exif aperture larger than possible for the used lens

A photo shot with an 1:1.8 lens contains the following exif data: ApertureValue: 1695994/1000000 MaxApertureValue: 16/10 How is this possible? Both values are <1.8
13
votes
5answers
659 views

Why are only certain shutter speeds or apertures available?

For the exposure control function DSLRs there are specific shutter speeds available. For example there are 1/4, 1/100, 1/500. Why, even in high end DSLRs, is there no option to use a custom shutter ...
4
votes
2answers
1k views

AF-D vs AF-G: is the aperture ring necessary?

I just purchased a Nikon D7000 with an 18-105 f/3.5-5.6 AF-S lens. I'm also looking at purchasing a lens around the 200-300mm focal length range, and I found the 70-300mm f/4-5.6 AF lens. As far as I ...
2
votes
3answers
1k views

How can I see both aperture and shutter speed in Av mode on my Canon 550D?

I used to be able to see both aperture f-number and shutter speed, and change both values on Av mode on my Canon 550 DSLR. Now, I can only see the aperture f-number and not the shutter speed on the ...
0
votes
2answers
7k views

Why Small aperture (less light) has Large depth of field? [duplicate]

Possible Duplicate: Technically, why is the out of focus area blurred more when using a bigger aperture? I understand that a small aperture (large aperture number eg. F/22) means large ...
-1
votes
2answers
522 views

How do I decide the best aperture to use with my Canon 18-200mm lens and 50D?

I am using a Canon 50D with the 18-200mm lens it came with. Some of my pictures turn out un-sharp, even taking metering and Auto Focus points into consideration. I wonder if this is caused by my ...
-5
votes
5answers
3k views

How can I get bokeh with an aperture of 3.5 as my max?

I am trying to get DOF portraits of my daughter with my Nikon d7000, as per my previous post. I have zoomed in to 100mm or so and tried to get a large aperture but as I zoom, the camera decreases f# ...
13
votes
2answers
2k views

Why do zoom lenses and compact cameras have varied maximum aperture across the zoom range?

Why does a camera's maximum (allowed) aperture get smaller when you increase its zoom?
8
votes
5answers
1k views

How do different aperture and shutter settings affect a photo with the same overall exposure?

Ok, here's my doubt. Suppose I want to get a certain exposure for an image. Keeping the ISO constant, there are two tentative possibilities here: Put the camera at f 1.4 (say) and at 1/1600 shutter ...
15
votes
4answers
3k views

What is a “fast” lens?

I've been reading lots of camera reviews lately and have ran across several references to "fast" lenses. What exactly is a fast lens and what are its advantages compared to other lenses?
5
votes
4answers
10k views

What shutter speed to use when shooting video?

My camera is Canon 60D and I will be using it to shoot a short parkour video, that means: a lot of motion, moving subjects, moving camera focal length usually from 24 mm to 75 mm, but there will ...
30
votes
5answers
5k views

How do constant aperture lenses work?

Cheaper zoom lenses usually are faster at the wide end and slower at the long end (for example, the $150 Canon EF-S 18-55mm f/3.5-5.6). More expensive constant-aperture zoom lenses have the same ...
5
votes
3answers
691 views

Does Av mode on my Canon DSLR take IS into account when deciding shutter speed and ISO?

Most of the time when I'm out I'm shooting, my camera is in Av mode. I've selected the aperture size I want and I'm letting the camera decide on the correct shutter speed and ISO that are required to ...
2
votes
1answer
429 views

How does Sunset Mode affect exposure on Canon A800?

I was puzzled recently when I did some test shots with my Canon A800 by shooting the same (landscape) scene with and without full optical zoom and with the camera program set to SCN - Sunset. (Sunset ...
2
votes
1answer
1k views

Can I adjust the aperture of a Canon T2i while shooting a movie?

Can I adjust the aperture of a Canon T2i while shooting a movie? I really want a greater depth of field when I'm shooting a movie.
1
vote
0answers
220 views

Nikkor 50mm F1.4D vs. Nikkor 50mm F1.8D [duplicate]

Possible Duplicate: Is there a noticeable difference between 1.8 and 1.4 prime lens? I am a new to DSLR cameras and I just recently got my Nikon D5100 camera. I am now considering buying a ...
2
votes
1answer
516 views

How to shoot sharp “landscapes” with a point and shoot camera?

So, I have been told in a thread here previously that the minimum aperture (F8) on my point and shoot camera can cause diffraction and result in losing details of the subject if too many things are in ...
10
votes
1answer
814 views

Does focal length affect diffraction, in addition to aperture?

The reason I ask is that f/18 on a 24mm lens = 1.5mm, and f/18 on a 180mm lens = 10mm. I thought diffraction is due to the small physical size of the aperture, rather than the f-ratio, yet I only ever ...
4
votes
2answers
3k views

What are the best settings for black and white film portrait photography?

trying to do some "daily shots" thing, and I was wondering what's the best setting for black and white portraits in areas that are well-lit and sometimes not (fastfoods, restaurants, malls) I want to ...
17
votes
0answers
2k views

Why does a larger aperture cause more blur of the background? [duplicate]

Possible Duplicate: Technically, why is the out of focus area blurred more when using a bigger aperture? Why is it that a larger lens aperture produces a shorter depth of field, causing the ...
1
vote
1answer
437 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, ...
12
votes
6answers
553 views

Does lens speed still increase meaningfully when the physical aperture is larger than the sensor size?

This question came to me this morning, thinking about 50mm lenses. I have the Pentax 50mm f/1.7 (manual) and it's a very nice lens, but would be considered (relatively) slow on 35mm film, and many ...
4
votes
4answers
917 views

How does one deal with too much light when taking a photo?

How does one cancel out extra light while clicking a photo? Is decreasing the aperture a better option, or using a faster shutter speed? What are other options we could try?
2
votes
4answers
309 views

Why does my camera's meter suggest the same exposure time for lenses with different apertures?

On the same camera body (Canon 1Ds MkII) at the same ISO setting (400) and with no filters attached, two different lenses give the same exposure time (0.4s) at very different apertures. The lenses and ...
5
votes
2answers
626 views

Can I use aperture ring of Pentax FA lens in aperture priority mode?

I'm considering getting an FA Limited lens for my Pentax DSLR. The FA series has an aperture ring with an "A" setting for control by camera bodies that support it. Can I instead use the aperture ring ...
0
votes
2answers
164 views

Choosing the proper aperture [duplicate]

Possible Duplicate: What is aperture, and how does it affect my photograph? I have just started learning photography. One question for which I am still not able to find a good answer is how ...
6
votes
3answers
749 views

How many blades does my lens' aperture diaphragm have when I get 12-pointed starbursts?

Here I figured that my camera has either three or six blades. But yesterday I took another shot at night with the same setup which has twelve srokes: The camera is a Canon 550D and I used the same ...
9
votes
4answers
500 views

Why do filter sizes vary for lenses of the same focal length?

I have a Nikkor 18-55 kit lens that has a 52mm filter, and recently I was looking that the 17-55 lens has a 77mm filter. Is it because the latter is a better quality lens? I assume a bigger circle ...
7
votes
5answers
1k views

What are the benefits and costs of an image stabilized, slower lens vs a non-IS faster lens?

I am going thru a trade off decision between a 24-70 f2.8 lens and a 24-105 f4 IS lens from Canon. My dilemma is that the 24-105 focal length better matches my needs, but the f2.8 would occasionally ...
5
votes
1answer
281 views

What's the history of neutral density filters instead of aperture diaphragms in compact cameras?

Some compact cameras use neutral density filters to control light rather than aperture blades, to avoid the effects of diffraction in tiny sizes. I first heard of this as a feature of the Nokia N8 ...
6
votes
2answers
785 views

How are neutral density filters in compact cameras implemented?

I've read here on this very site that some compact cameras don't use aperture blades to stop down the lens and limit the amount of light hitting the sensor. Stopping down increases diffraction. ...
4
votes
2answers
995 views

Why f/22 is the highest possible setting for the aperture diaphragm?

My first DSLR camera was Canon EOS 350D. Now I've got an upgrade to Nikon D90. Both were/are with the kit lens. Whenever I'm taking a picture with biggest zoom (55mm on Canon, 105mm on Nikon) the ...
8
votes
1answer
1k views

Why does the maximum aperture change with focal length? [duplicate]

Possible Duplicate: Why do zoom lenses and compact cameras have varied maximum aperture across the zoom range? It is rather common with zooms that the maximum aperture changes (in fact, ...
-1
votes
1answer
1k views

What does the F number in a lens name mean? [duplicate]

Possible Duplicate: What does the f-stop printed on the lens refer to? I understand that for a DSLR you can modify the aperture(the F number) to allow more or less light to enter the ...
7
votes
2answers
3k views

What are the advantages of a lens having a fixed maximum aperture?

What are the advantages of a lens having a Fixed Maximum Aperture? Previous answers have indicated that "pros tend to want constant apertures in zoom lenses". While in general lenses with a fixed ...
4
votes
3answers
391 views

Is the aperture wider at 200mm f/5.6 than at 18mm f/3.5?

Speaking of the physical aperture. When looking at the 18-200 mm, f/3.5-5.6, I wonder how this works. With diameter D = f/N I get: 18 mm / 3.5 = 5 mm 200 mm / 5.6 = 35 mm So, does the aperture ...
0
votes
2answers
4k views

Best Focus Settings and Methods for DSLR Video?

Camera Body: Canon T2i Lens: Canon EF-S 18-55mm f/3.5-5.6 IS SD Card: Transcend 16GB, Class 10 Stabilization: Handheld/tripod (maybe) Question: I'm going on vacation this weekend and would like to ...
5
votes
2answers
815 views

Is it possible to Zone Focus with a DSLR?

I have a Canon 1000d. Is the zone focusing technique applicable in a DSLR? If yes, how do we do it?
4
votes
2answers
770 views

Is there any way to rig/hack the aperture wide open on a Nikon G lens so I can use it on a 35mm film camera?

I have a (Tamron 17-50 f/2.8 with VC) and Nikon FM2 film camera. I'm aware that the image circle on this lens isn't large enough for the 35mm film and I'm not worried about that. The only thing ...
2
votes
1answer
305 views

Why is there a subtle shadow glow around the subject with large aperture?

I've noticed that in a number of photos I've taken with a small depth of field due to wide aperture and a fairly close subject, I get a rather pleasing but not entirely explicable diffuse shadow ...
2
votes
2answers
419 views

When should I use which aperture settings?

I just bought a new Canon EOS 60D and working to choose a great lens. I have used DSLR before but never seriously. I have few questions on aperture which might be obvious to many but very helpful to ...
3
votes
2answers
1k views

How do I configure a Nikon D90 with minimum shutter speed and aperture?

How can I configure my Nikon D-90 with minimum shutter speed of 1/60th of a second and aperture of f1.4 and have it adjust the ISO and speed as needed? I currently have it working with 1/60th fixed ...
15
votes
5answers
938 views

How do I find the aperture that produces the highest-quality images for a given lens?

I'm not talking about large aperture (f/1.8, f/2.8...), rather, about small apertures (f/18, f/20, f/23...). I read somewhere (actually I think it was on this site, but I don't exactly remember which ...