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Questions about how much of the scene a camera can see, and what can affect how much is seen.

learn more… | top users | synonyms (1)

47
votes
5answers
11k views

What is “angle of view” in photography?

I read on the Lens Buying Guide @ neocamera: Focal-length determines the angle-of-view seen through a lens for a given sensor-size. With a full-frame sensor a lens gives the same angle-of-view ...
36
votes
10answers
4k views

What is crop factor and how does it relate to focal length?

I'm reading that a 50mm lens is recommended as a first prime lens for DSLR owners as it's supposed to give a 'natural' perspective, but when used on (most) DSLRs, the view is cropped, as if you were ...
17
votes
7answers
6k views

How can I get better results photographing dry erase boards?

As far as photography goes, I'm less than an amateur. I have a camera my friend (the head of the photography dept. at a local college) recommended to me that I really want to learn to use, but ...
16
votes
5answers
5k views

What focal length gives a “normal” field-of-view on APS-C cameras?

I wish to purchase a "standard angle-of-view" prime lens for my Canon Rebel, which has an APS-C sized sensor. Various articles note that the popular "nifty 50mm" lenses are a little too much of a ...
15
votes
4answers
2k views

Is there a mapping tool that will let me visualize a lens's angle of view?

In the past, I've used tools like SunCalc and The Photographer's Ephemeris to plan landscape shots in advance, based on where the sun and moon rise and set. Is there a similar tool that can overlay ...
14
votes
11answers
6k views

Will a 50mm f/1.8 work for general outdoor photography?

I want to know if it's advisable to use 50mm lens for general outdoor photography. I'm torn between 35mm and 50mm primes, and have read all the pros and cons. I understand that 50mm could be tight in ...
13
votes
5answers
1k views

Why do we talk about focal-length when frame sizes are different?

I keep seeing people talking about focal-length of lenses without saying how large the frame is. Is there a more sensible way to talk about how much a lens “zooms”? (I have seen so many adverts ...
11
votes
7answers
22k views

What lens focal length most closely resembles the human eye perspective?

For example, if I have a lens that is 16mm-50mm, which focal length would be the closest to the human eye view? (I don't have a camera yet, so I'm just curious). Would 50mm be more zoomed in than ...
9
votes
4answers
847 views

Is it the same if you take a picture by setting 50mm in a 18-55mm lens and by using a 50mm prime lens?

Is it the same if you take a picture setting 50mm with a 18-55mm lens and a 50mm f/1.8 prime lens? Assuming that ISO, aperture, and shutter speed are the same, will both the lens give same results? I ...
9
votes
4answers
949 views

How much does 1 mm get you in a wide-angle lens?

I'm looking at a Canon 17-40 mm wide angle lens, and I don't understand why anyone would buy it. EFS18-55mm II is the standard Canon 18-55 mm lens that DSLRs come with, and it seems almost as ...
8
votes
5answers
749 views

Does crop factor still apply to a vintage film SLR lens?

My friend has a Tamron 24mm lens on his Nikon D5000 and he says that because of its age and the fact it is manual focus, it is still actually a 24mm on his crop sensored camera. Is this right? If so, ...
7
votes
3answers
1k views

What is the formula for percent of frame filled at a specific distance and focal length?

I am thinking about buying a new lens specifically to take photos of distant targets (birds, bears, etc). I currently own the Canon 70-300 IS USM, which is a nice lens, but I find that if I want to ...
7
votes
2answers
4k views

How to calculate viewing distance for a print size?

I'm working on a photomontage (35mm landscape). The client is asking for what size they should print it at and what is the viewing distance. I'm planning to print the final image on either A1 or A2 ...
7
votes
1answer
242 views

Why do certain lenses increase angle of view upon close focus?

I recently picked up a superzoom lens, the Nikon 28-300mm. Although I got it primarily for its versatility, my intuition was that a lens that can do 300mm focal length at 50 cm, as indeed it can, ...
6
votes
3answers
229 views

warehouse interior photography to show scale

I am currently trying to shoot the inside of a client's new building for a brochure, however its rather empty as its new. I want therefore to capture the scale of the place, its quite big! This is ...
5
votes
3answers
1k views

How does using a lens with some focal length on a full frame camera differ from using a lens with “equivalent” focal lens on a crop camera?

As an example, a 35mm lens on a crop body (such as Nikon DX) is said to be "equivalent" to a 50mm lens on a full frame body. Equivalent here means that they will have the same field of view, but what ...
5
votes
2answers
759 views

How to calculate the viewing distance giving natural perspective?

When I move my eye closer to a photograph, it will fill a larger part of my view. When I move further, the area filled by the image will become smaller. Apparently, there must be some point where the ...
5
votes
3answers
475 views

Does the imaging circle size change when a lens zooms?

When a zoom lens is designed for a cropped (APS-C) imaging circle, does the imaging circle necessarily stay that small throughout the zoom range? It is easily understandable that a prime lens ...
5
votes
2answers
172 views

Capturing large monuments and landscapes

I recently came back from a visit to Tikal, a mayan ruin filled with majestically tall structures and vertigo inducing panoramic views when looking down from on top. Unfortunately, my (and other's) ...
5
votes
2answers
4k views

GoPro Hero HD field of view is larger at lower resolutions, how is that?

How is it that the FOV can be greater for the smaller resolutions in their camera, which has no zoom? I would expect a greater FOV when more of the sensor is used. From: ...
5
votes
6answers
408 views

What's the difference between zooming in on a subject vs moving closer? [duplicate]

If I stand 10 feet away from a subject and I want a close up shot, I can either zoom in or I can physically move the camera as close as possible to the subject. Which one is a better practice, or is ...
4
votes
5answers
3k views

Why do Canon EF and EF-S lenses exhibit the same crop factor?

I have a Canon 7D, which has a crop factor of 1.6x. When using a Canon EF-S lens I get the focal length stated on the lens, when using a Canon EF lens I get the focal length times 1.6 when used on ...
4
votes
2answers
302 views

How rapidly does the focal length-equivalent image change by physically moving the camera?

I have recently begun moving from a Nikon APS-C DSLR to the Micro Four Thirds camera while also transitioning from using a viewfinder to using the LCD screen for framing my shots. Because of the size ...
4
votes
4answers
2k views

When would one choose a 50mm f/1.4 over 85mm f/1.8 (or vice versa) for portraits?

Say you are using a crop body, and you have both 50mm/1.4 USM and 85mm/1.8 USM lens in your bag. Now, you want to take a portrait where there is adequate light and space, and you have decided to take ...
4
votes
3answers
4k views

How can I calculate vertical field of view from horizontal field of view?

I have an Axis M1011 (specs available here), which I need to find the vertical field of view. The online specifications tell me the horizontal field of view is 47 degrees, and the image size is ...
4
votes
1answer
200 views

What factor determines the largest usable sensor size with a certain lens?

Reading this excellent answer about field of view, focal length and sensor size a new question came to mind. From the drawn diagrams it is clearly visible that for the same focal length an increase ...
4
votes
2answers
4k views

Does using a lens adapter change focal length?

Does using a lens adapter change the field of view? I recently bought a Sony NEX-5, an extra Minolta MD 50mm 1.7/f lens and a MD to E-mount adapter and I was wondering, as the adapter increases the ...
4
votes
2answers
350 views

How do I calculate equivalent focal length from field of view?

I'm working with zone sieve and zone plate photography. Zone sieve/plate is similar to pinhole photography but it can give a softer, dreamier, look. This is a zone sieve photo I've taken: Zone ...
4
votes
3answers
562 views

Why do my 100mm EF macro lens and my EF-S zoom set at 100mm appear to give a different field of view?

I have a Canon EF 100mm Macro and a Canon EF-S 18-200mm Lens, and using a Canon EOS 60D. I believed that when setting the Zoom Lens to 100mm it would show the same field of view as the one from ...
3
votes
2answers
310 views

How can lenses with different focal lengths have the same angle of view?

I always assumed that there was a fixed relation between focal length and angle of view. But compare the technical data for the following lenses, all from the same manufacturer: Canon EF-S 15-85mm ...
3
votes
5answers
243 views

How do I compare two prime lenses of different focal lengths?

I have a Sony NEX-5R with two prime lenses: 19mm F2.8 Sigma, and 35mm F1.8 Sony. I'd like to compare these two lenses to see why the second lens cost me more than twice the first, what the differences ...
3
votes
1answer
124 views

How can I work out how far away I need to be from the set to get it all in frame?

I am planning on shooting a bedroom from above. I am planning on getting a high ceiling studio if I can, and I want the bedroom I build to be the same aspect ratio as the camera lens (so, 16:9?). But ...
3
votes
2answers
246 views

How much versatility does a 85 mm lens have?

Can it be effectively used for landscapes as I am not a portrait shooter? This may be first "prime" lens so I need to understand what it's usable for. How far of a "range" does it have as far as ...
3
votes
3answers
430 views

Is lens focal length specified considering the effect of barrel distortion on field of view?

Given a Nikon 14mm f/2.8D ED AF Ultra Wide-Angle Nikkor Lens on a full-frame sensor, in theory the field of view is HFOV: 104° x VFOV: 81°. However this lens exhibits noticeable barrel distortion ...
2
votes
3answers
321 views

Why do two zoom lenses set to 200mm on the same camera produce different fields of view?

I've been testing out a Nikon 18-200mm F3.5-5.6 against a Nikon 55-300mm F4.5-5.6 I took two pictures of a door knob from an equal distance of about 3 meters away with the same Nikon d7100 DX camera ...
2
votes
3answers
503 views

Is the angle of view actually different on APS-C?

A 50mm prime lens, whether APS-C or Full-frame is designed around the 35mm format. As such, is the angle of view actually different on a DX/APS-C crop sensor or are we just seeing less of the full ...
2
votes
2answers
4k views

How to calculate the FOV in degrees from focal length or distance?

How does one to calculate the field of view (or angle of view) in degrees from the following details: sensor size (for example, 1") distance to target (for example, 7 feet) focal length (for ...
2
votes
3answers
277 views

How to adjust the flashlight properly when to take a headshot?

I want to do indoor head-shot in a low light situation. What is the right way to adjust the flashlight pointing angle to receive the best out of it. PS : I use Nikon D3200 with 35mm f/1.8g lens and ...
2
votes
2answers
4k views

How close can a Nikon 1 J1 with 30-110mm lens “zoom in” to a shot?

I am trying to decide which camera to buy. Have looked into both the Nikon Coolpix P100 and 1 J1, and feel that the 1J1 is more adaptable, and has many features that I'd like to enjoy. But, I'm ...
2
votes
1answer
242 views

Can defished fisheye images have a larger FOV than rectilinear wide angle lenses?

I am trying to create a DIY wide angle webcam with the goal of maximizing my horizontal and vertical fov. I'm thinking that I need to use fisheye filters and then defish the video afterwards. Is this ...
2
votes
1answer
791 views

What does “angle of view equivalent to that of some lens in 35mm format” mean?

Does "angle of view equivalent to that of 22.5-585 mm lens in 35mm [135] format" for a digital camera mean that the lens is equivalent to a 22.5-585 mm lens for a DSLR camera?
1
vote
2answers
133 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?
1
vote
1answer
365 views

How does the depth of field with 50mm f/1.4 compare to 85mm f/1.8 with the same framing? [duplicate]

Possible Duplicate: Is there a formula to calculate DOF? Is there an easy way to establish, on paper, which of these two lenses, shot wide open and with the same subject size in frame, ...
1
vote
2answers
128 views

Will old K-mount lenses have the same field of view on Pentax K01?

Will old K-mount lenses have the same field of view on Pentax K01? Or, will 50mm lens (made for 35mm film) function as a 75mm lens?
1
vote
2answers
992 views

How far away can I be and still get a sharp subject with a 100mm lens?

If I have a 100mm lens, how far away can I shoot the subject? If I am shooting basketball, how far can I shoot the subject and still get a sharp picture?
1
vote
0answers
19 views

closeup filter vs dedicated macro lens [duplicate]

I want to click macro pictures, so was wondering closeup filter for my 18-55mm and 50-200mm as a cheap macro solution. Lately I've been doing more macro work, so I've been thinking about cheap ...
0
votes
2answers
146 views

So my iPhone 6 camera lens is as wide as my full frame 35mm DSLR lens?

I am trying to understand what is the deal with "full-frame" and what difference it makes, so did a silly test: I sat at my bed and aligned the iPhone 6 camera with the door of the room and took a ...
0
votes
1answer
186 views

Calculating the field of view for a Nexus 5

The specs on the Nexusw 5 rear camera are: Aperture size: F2.4 Focal length (35mm equivalent): 30.4 mm Camera sensor size: 1/3.2" I want to calculate the field of view ...
0
votes
1answer
91 views

Aperture and field of view - percepted by eye vs camera

I very well informed and I know about how aperture works and why is it not restricting field of view, but I somehow cannot get around the following: Aperture doesn't restrict field of view for the ...
0
votes
2answers
2k views

Field of view of a webcam

I was looking for a webcam that shows a wide area left and right of me, so I compared the field of view of several webcams. I was under the impression that a greater number as the FOV angle means ...