Questions tagged [aperture]

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.

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4
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3answers
1k views

Can I force the aperture to stay open on macro lens?

I have a sigma 180mm f/2.8 lens, which I bought because it was the largest aperture I could find that focuses around 0.5m See this question for why this was important.. Upon arrival, however, the lens ...
19
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4answers
49k views

Does a bigger aperture create better photos?

I have observed that the wider the aperture, the more expensive the lenses are. However, I would like to know whether it really makes a difference in your photos or not?
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4answers
9k views

Does using an extender actually change the aperture of the lens?

I just bought a Canon 2X extender and I always believed that it would only result in 2 stops' loss of light and not change the aperture. However, when I tested this extender on a Canon 135mm f/2 ...
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1answer
214 views

Why am I able to set wider aperture than my lens technically allows? [duplicate]

I'm practicing with Sigma 28 - 300mm f/3.5 - 6.3 Macro lens. And the thing I've noticed is that at 300mm focal length my aperture can be set to as wide as f/5.6. And EXIF data confirms it: I'm ...
21
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4answers
7k views

Do the same camera settings lead to the same exposure across different sensor sizes?

Let's say I have a micro-4/3rd camera and a full frame camera, both set to 1/60 at f/2.8, taking a picture of the same scene in the same lighting. Will the exposure be the same across both cameras ...
3
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1answer
926 views

Can I change the camera aperture value on my Honor 8 phone?

I am planning to do some macro photography with my Honor 8 phone, i got a macro lens to clip over the phone. the problem is, i need more depth of field and hence i need to increase the f-number, the ...
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8answers
102k views

How to change aperture in manual mode on an entry-level Nikon SLR?

In manual mode on my Nikon D3200 I cannot change just the f/stop setting. It only changes in relation to the other settings. How can I reproduce settings that I have found in books on photography if I ...
16
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2answers
4k views

How do DSLRs figure out what aperture to select in P mode?

In program mode, DSLRs adjust not only the ISO and the shutter speed, but also the aperture. The aperture has a huge impact in some situations. For example, when shooting a close subject in front of ...
2
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1answer
241 views

Are Nikon lenses with electronic aperture compatible with extension tubes with electronic contacts?

Can extension tubes with electrical contacts be used with Nikon's electronically-controlled aperture lenses, such as the Nikkor 16–80mm f/2.8–4E ED VR, when combined with a compatible camera body, ...
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6answers
2k views

How to ensure sharp focus when shooting with an open aperture?

I've bought a Canon EF 50mm f/1.8 to use with my EOS 200D and while I love the wide aperture, it appears to be quite difficult to achieve sharp focus on people's faces when shooting at f/1.8. I've ...
7
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2answers
261 views

Why is the aperture of this old lens showing as centered blue glare?

I just bought a old Minolta MD Zoom 35-135mm 1:3.5-4.5 lens together with two old Minolta SLRs to get into film photography. Before using actual film I adapted it to my Canon 600D (using a no-name MD-...
3
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3answers
881 views

Reasonable setup for ultra long exposure for this kind of photo using Nikon D750

I'm using Nikon D750, and intend to take a ultra long exposure picture such as this (by Michael Kenna). What's is the reasonable shutter speed and aperture for that? If I use shutter speed 2 hr what ...
6
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2answers
5k views

What lenses can produce a clean starburst effect?

I have seen several examples of a beautiful lens effect, naturally due to a stopped down aperture, but not like a lens star I have managed to create myself - it is so clean. Here is an example: https:...
5
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7answers
55k views

How can I see the photo settings like f-stop, ISO etc. of a image?

I am new to photography and enjoying shooting with my Nikon D3200 camera. Once I take a photo, is there any tool by Nikon or a third party which can give me info like F-stop, ISO, Shutter speed, etc? ...
2
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2answers
85 views

Exposure preferences

Whenever I shoot with my Nikon D5300 in manual mode I set settings so that photos have bit more pop to them - brighter than what the camera exposure meter says the correct exposure is. For instance, ...
0
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5answers
13k views

Why doesn't the f-stop on my D7100 change when I hold +/- and change the dial in manual mode?

On my Nikon D7100, the f/stop will not go down from 14 when I hold down the +/- button and turn dial. All I get is a little number below but the photos do not change exposure when I change this number....
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3answers
3k views

Why doesn't the aperture change when I turn the ring on my Nikon lens?

I have a Nikon D5300, and I have a Nikon ED AF Nikkor 70-300mm 1:4-5.6 D lens. I cannot change the aperture manually in the lens — I can't take photos when I turn the ring. I want to buy a Rokinon ...
2
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1answer
69 views

Depth of field and aperture size [duplicate]

Why does a smaller aperture size have a high depth of field? What is the physics behind this?
19
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3answers
7k views

How can a smartphone take pictures of a landscape with everything in focus?

After the announcement of the new Samsung Galaxy S9 with the new camera that changes aperture, I caught myself wondering: if smartphones have such a wide aperture (f/2.8, f/2.2, etc), how are ...
11
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4answers
2k views

Why does wider aperture make snowflakes look bigger?

Recently I went out to shoot when it was snowing. I was playing around with different aperture sizes and exposure times. What I have noticed that the wider the aperture, the more snow I can capture ...
5
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2answers
4k views

How do metering and aperture setting play together in manual mode (Minolta X-700)?

I have been playing around with my mother's Minolta X-700 (objective: Minolta MD 50 mm f/1.7) and though I read the manual (here it is: Manual X-700), I am still unclear about one thing: When I use ...
3
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3answers
10k views

How to remove oil from aperture blades?

If you go on ebay or other second hand places, you'll see a fair amount of lenses that have oil on the aperture (particularly on older lenses). I've done some reading and it looks like this oil is ...
7
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1answer
9k views

Why must I lock the aperture on my AF lens on my Nikon D40?

I am using the Nikon 50mm f1.8 AF lens on my D40 and the photographs look excellent - I have to manual focus, but this suits me just fine for the portrait shots I'm taking. The problem is that to use ...
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2answers
2k views

What should I set my aperture to when there's a lot of light outside? [duplicate]

I'm just looking for a simple reminder when it comes to aperture, such as: when there's a lot of light in the atmosphere where a photo is exposed, the aperture should be low, or something. The more ...
2
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2answers
696 views

My Tamron 100-400mm f/4.5-6.3 jumps to f/6.7 beyond 360mm

I got a brand new lens today: a Tamron 100-400mm F/4.5-6.3 Di VC USD. I have mounted it on my Nikon D80. This lens seems to have a problem with its aperture: At 100mm, I can operate from f/4.5 ...
67
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7answers
22k views

What is a “diffraction limit”?

I've seen the term used, but what is a "diffraction limit", when should I worry about it, and what undesirable effects are a result of it ?
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2answers
12k views

Aperture won’t lower [duplicate]

I have Tamron 90mm f/2.8 Macro Lens on my Nikon D5500. I’m trying to get my aperture to go to its lowest which is 2.8, however, I can’t get it to go lower than 3.0 or 3.5 (its lowest changes often and ...
4
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1answer
1k views

The right aperture for capturing stars?

I recently had the chance to photograph an astronomical event - and this was my first foray into night-sky photography. I had two lenses that I used: 85mm f/1.2 shot at f/1.2 through f/2.8 16-35mm f/...
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1answer
378 views

Is a lense with an aperture larger than f/8 useful with an EOS 80 D?

I have a EOS 80D and supposedly it has a max aperture of f/8. Does this mean that my camera can't take advantage of lenses with larger aperture? E.G. This one for example: Canon EF-S 24mm Camera ...
-2
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3answers
687 views

Aperture formula

My camera is Fujifilm s7000 (bridge) . On the lens I can see f = 7.8mm - 46.8mm . When using the formula should we use 35mm equivalents values ? Does optical zooming change the focal length? ...
0
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2answers
790 views

Is Sigma 150-600mm f 5-6.3 contemporary “F4-5.6” on Crop Sensor?

I bought Sigma 150-600mm f5-6.3 Contemporary DG OS HSM Lens for my Crop Sensor Canon 1300D. What I've noticed is that it gives me max aperture of f5.6 at 600MM instead of f6.3 and f4.5 at 150mm on my ...
0
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4answers
284 views

How to take photo of water splash without photo getting dark? [duplicate]

I just got my beginner DSLR (Nikon D3300) and tried to take a photo of a water splash. I read about aperture, ISO and shutter speed and I know if I set high shutter speed I need to set low aperture ...
3
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5answers
19k views

Is there a way to adjust the aperture of a Nikon lens without a camera or physical aperture ring?

If I have a camera that does not have any electronic connection to the lens, is there any way to adjust the aperture on the lens if it does not have a physical aperture ring? We're using a scientific ...
0
votes
1answer
521 views

Why can't I adjust exposure on my D90 in aperture-priority mode?

I have a Nikon D90, and I usually prefer to shoot in Aperture priority mode. However, recently when I go into Aperture mode, I can adjust the aperture, but I can't adjust the exposure, and the hash ...
1
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2answers
556 views

Do modern IF Macro lenses have true constant apertures?

From my basic understanding f/stop is the ratio between the aperture size and length of the lens. A majority of macro lenses feature an extending barrel. So naturally, a fully-extended f2.8 lens, ...
6
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5answers
3k views

Why does the autofocus capability depend on the aperture rather than the amount of light available?

In many DSLR manuals one can read something to the effect of: Maximum Lens Aperture: f/3.2 - f/5.6 With all AF points, cross-type AF sensitive to both vertical and horizontal lines is ...
0
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4answers
313 views

Which aperture value determines depth of field on variable aperture lenses?

Do variable aperture values represent the way in which depth of field is rendered by a lens or only to the transmission of light (i.e the brightness)? For example, if i wish to calculate depth of ...
1
vote
2answers
548 views

Does the sensor size matters in the size and weight of an equivalent lens? Why?

In other words, does the size of projected image circle matters in the size and weight of two lenses with the same aperture/DOF (different f-number) and field of view (different mm)? All other things ...
12
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3answers
8k 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 ...
1
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1answer
164 views

Why am I getting ERR 1 on my 80D when I shoot with a small aperture?

Whenever I try to take a picture with a small aperture, say f/13, the camera won't shoot and displays "Err 1: Faulty Lens Communication, Clean Lens contacts" and upon doing so, it won't change a thing....
4
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3answers
3k views

Why should I use the widest aperture for star photography?

In the article, Photographing Stars Using a Kit Lens, the author talks about keeping the widest aperture, e.g. ƒ/3.5. But it's my understanding that a wide aperture means a smaller area will be in ...
0
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2answers
409 views

Exposure compensation after images are taken

I have a stack of image tiles (taken from a drone) that I want to mosaic to a single image. I want to do exposure compensation to reduce the variation in illumination between the image tiles before ...
8
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2answers
3k views

Why do Canon lenses stay wide open when off camera, but Nikkor lenses keep tight aperture?

I have only noticed this for a handful of lenses so I am probably wrong in saying that all Nikon and all Canon lenses follow suit. But from those I have seen, Nikon tend to close the iris when removed ...
1
vote
1answer
149 views

Getting two subjects sitting across the table in focus

Hoping to get some tips on photographing two subjects sitting across each other a table (the table is maybe 2 feet long). They’ll be at the same distance from the camera just a few feet away from each ...
2
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2answers
277 views

Transmission, Aperture, and Focal Length in Low Light Situations

I've been looking for an affordable lens I can use for nighttime shooting, including astrophotography. The two lenses I have found that seem best suited for this are the Samyang 16mm f/2 and the ...
5
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1answer
122 views

When does the aperture ring close when using exposure-delay mode?

I understand mirror slap can introduce unwanted vibration. But what about the closing of the aperture ring, especially with a telephoto lens? I'll be using exposure delay mode with a tripod. When does ...
20
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2answers
5k 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?
0
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1answer
735 views

How does the Tamron 70-200mm F/2.8 without VR/IS compare to the Nikon 70-300mm F/4.5-5.6 VR?

I'm looking at two different lenses. The Tamron AF 70-200mm f/2.8 Di LD IF Macro Lens. http://www.amazon.com/Tamron-70-200mm-Digital-Cameras-A001NII/dp/B0012GDOQS/ref=sr_1_3?ie=UTF8&qid=...
-2
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6answers
14k views

What is the correct way to describe better camera, aperture f/2.2 or f2.2?

I am hearing lot of people/website talking about aperture very often. But different website writes it different way. What is the correct way to mention it? E.g. If some good camera phone has ...
1
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1answer
621 views

Choosing an aperture for long-distance landscape photography

I'm working on a project to make some photographs of a certain rock climbing area. The cliff face is tall and located in a mountainous area, so in order to get reasonable perspectives, I need to hike ...

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