Questions tagged [field-of-view]

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

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3 answers
79 views

What is it called when a short vs tall object gets distorted when it moved towards the edge of the image?

If I have a camera pointing "straight" down towards a table and put a pack of gum on the table, it will look the same no matter where I move the pack of gum in the image. If I put a bottle ...
3 votes
2 answers
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Does "Field of view" include radial lens distortion?

When manufacturers state the "field of view" of a camera, is that including lens distortion or not? I work a lot with CCTV and dashcam footage which always has barrel distortion. For a given ...
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What is the Field of View (FoV) of iPhone XS Max?

What the field of view (FoV) of iPhone XS Max rear cameras?
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Image quality expectation of 2K surveillance camera vs 4K iPhone? Resolution vs field of view

I'd like to be able to identify licenses plates as they enter our cul-de-sac. My question is triggered by a comparison between an Arlo Pro 4 and an iPhone 12. The iPhone produces extremely high ...
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3 answers
128 views

I want to match same field of view with different focal length is there any formula? [duplicate]

Trying to get any hard formula so according to that calculation for different focal length i place object accordingly. Eg.
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Is it possible to calculate field of view and aperture given focal length, k1 and k2?

I have some data coming from an API that looks like this: "camera_parameters": [0.785028, 0.032519, -0.053622] and the data structure that I would like to obtain should look something like ...
1 vote
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225 views

What's the field of view for LIDAR in iPhone Pro 12 and iPhone Pro Max?

It looks like the angles aren't quite 67.3 x 53.06 degrees as this answer suggests: What is the Angle of View of the iPhone XS rear camera?. At least the point clouds I get look better for 75 degrees ...
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2 votes
3 answers
443 views

How to determine via a math formula when a lens is wide angle or macro

Lets say I have a device with 3 separate lenses. One will be the main reference lens, and then the two others may be a wide angle lens or a macro lens, or also even a replica of the main reference ...
3 votes
1 answer
368 views

Is x50 zoom camera able to zoom 500 meter target area from a 6 km distance?

I have a x50 zoom camera and here is some specs of the camera and lens: Focal length: 6 mm ~ 300 mm Field of view: 58.4° ~ 1.4° Resolution: 2 MP I drew a scheme to explain my question properly, you ...
2 votes
2 answers
432 views

Geocoordinate calculation for aerial oblique image using camera and plane yaw, pitch, roll, and position data

I have a requirement to calculate the ground footprint for an aerial camera. The photos are TerraPhotos. TerraPhoto user guide provide camera position and plane orientation in .IML file. Additionally, ...
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How do I select a fixed lens for my APS-C sensor camera for a specific field of view/zoom

I have a camera that's been set up for a very specific application: it's a mirrorless Sony alpha 6000, with the lens that came with the camera: The Sony 16-50mm f/3.5-5.6 OSS Retractable Zoom Lens. I ...
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Can a ratio/function be created to calculate focal length vs size-in-frame if I have two focal length shots from the same sensor and position?

I am trying to figure out what focal length lens I would need to get a specific object to completely fill the image from a camera. Assuming I have two RAW files from the same camera body, shot from ...
4 votes
4 answers
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Calculate lens FOV difference between Full-frame and APS-C sensors?

According to manufacturer specs 20mm lens has Field of View 94 degrees on FF (35mm) sensor and 70 degrees on APS-C sensor. Another 35mm lens only has Field of View specified for FF (35mm) 63 degrees. ...
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For the same FOV and f-stop, will total luminous flux increase linearly with sensor area?

Suppose I have two different cameras, one with a sensor whose area is twice the other's. Further assume the sensors have the same aspect ratio. Suppose I put 35 mm-equivalent lenses on both, thus ...
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Does a Canon 18-135mm have a wider field of view than a Canon 24mm?

Beginner looking to buy a DLSR and looking at lenses. My goal is for wide-angle landscape. My question is: Is the 18-135mm lens wider than the 24mm since it has a 18mm minimum, which I'm assuming the ...
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Computing the Focal Length

I have a course problem that asks to calculate the focal length of a camera with the following specifications: Field of view along the horizontal axis (X): 60 deg. Field of view along the vertical ...
1 vote
1 answer
115 views

Calculation of the heigth of the camera

I am trying to find the height of a drone using the camera only. I can calculate the distance of the object top and bottom. Object is a square platform with width=0.2m. I used the equation provided by ...
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4 answers
421 views

Apparent size of subject in two different cameras with the same resolution and focal length (or FOV)

Consider two cameras with the same resolution (let's say 640x480) and focal length (or FOV) looking at the same subject. Let's assume that the subject is in focus in both cameras. Will the image of ...
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3 votes
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499 views

Changing the field-of-view of a photo in post

Photos in real-estate listings typically present a distorted reality in which rooms look longer than they are—see for example https://photographyforrealestate.net/2016/07/19/is-it-possible-to-get-by-...
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What aperture to use to get the same DOF as in a panoramic image

When I take a panorama with a 80mm lens at F/2.0 on a fullframe body such that the resulting image has a equivalent field of view of a 50mm lens on the same body, what would then be the equivalent ...
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How to mathematically crop photo from one camera to match view of another?

Imagine I take a photo of the same scene using two cameras, one right after the other, from the exact same spot. The cameras may be different in every way possible. They could have very different ...
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1 answer
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What focal length do I need to get the same field of view as an iPhone SE?

I have a FujiFilm camera (mirrorless crop) with a 35mm lens while iPhone SE has a 4mm lens. What focal length lens do I need for it to get the same field of view as on the iPhone SE?
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As a blind person, how can I better understand how wide or narrow a field of view is?

I saw this question but feel that it doesn't fully explain how this works. I am completely blind, so I am trying to come up with a tactile pictorial representation of how field of view works. ...
1 vote
1 answer
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Why does changing aperture change field of view in my reverse-lens macro setup?

I have a reverse lens macro setup, with a reversed 35 mm lens attached through an adapter to a 80-200 zoom lens. I have the following issue: changing the aperture setting on the zoom lens changes the ...
2 votes
2 answers
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angle of view and distance from subject calculation for a smartphone

I would like to calculate the angle of view of a photo taken by a smartphone, in order and estimate the distance from a subject of a specific size. Let's do calculation for a Samsung S7, which has a ...
1 vote
4 answers
2k views

How do fixed lenses "focus" on things at different distances? [duplicate]

I'm trying to understand depth of field and I'm struggling. If I'm playing with a 50mm fixed lens, and I alter its focus using the little ring around the lens, what is actually changing in terms of ...
1 vote
2 answers
521 views

How to find an angle and a distance for clicking picture of a distorted artwork to achieve 3D effect?

If you know about 3D pencil artworks, you would know people draw it distorted (generally length is enlarged i.e., stretched from bottom to top) first and then click a picture at some angle (30-40 ...
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How do I calculate how high a camera needs to be to fit an object in the frame based on its field of view?

I'm doing a computer vision application related to snooker for my dissertation. In a section of my report, I’m talking about cameras and it would be good if I’m able to do the calculation stated above....
2 votes
3 answers
339 views

Does field of view change for different lens model for the same focal length?

I am using two lenses - Tamron 75-250mm F/3.8-4.5 Model 104A and AF-P DX NIKKOR 70-300mm. When shot with lenses set to 250mm of focal length, the field of view for the Tamron lens is greater than the ...
2 votes
2 answers
964 views

What attachments to get shallow depth of field with a smartphone?

I'm doing a research project involving machine vision, and would ideally like to find a lens with a shallow DoF (perhaps about 2m or so in-focus) that can be attached to a smartphone. Something that ...
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5 votes
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(How) were FoVs discussed before the 35mm became de-facto standard?

Ever since the 35mm small frame gained popularity in the mid-1900s it's well known (and perhaps lamented) the particular crop factor became a de-facto standard by late 1900s when people discussed ...
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Calculation of Distance of an object given the field of view of camera [duplicate]

I am using an Olympus M. Zuiko 45mm f/1.8 Camera, I have to calculate the distance at which the lens should be present so that it captures the complete object at once. I know that the field of view ...
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2 answers
2k views

Field of view using 50mm APS-C lens on APS-C body vs 50mm FF lens on FF body? [duplicate]

I am taking 2 pictures using: Nikon D3400 APS-C sensor and an APS-C kit lens, 18-55mm set at 50mm Nikon D850 full frame camera and a full frame lens 50mm that is designed for full frame Nikon ...
2 votes
5 answers
1k views

Why are lenses characterized by focal length and not the effective field of view?

In photography, it's the accepted norm to say that if you know the sensor size of your camera and the focal length of your lens, then you know the field of view of your system. However, in optics, it'...
1 vote
1 answer
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Pixel diameter of a given field of view calculation equisolid (equal-area) fisheye lens

I have a 180° equisolid (equal-area) fisheye lens with a focal length of 8 mm. I want to crop images to a circle defined by an angular field of view from the zenith angle of the lens (i.e. the middle ...
1 vote
3 answers
413 views

How is wide field-of-view possible using a tiny sensor?

From looking at the FOV tables on this page, I can see that FOV is greatly reduced as sensor size decreases. It seems that 1/2.3 sensors would produced fields-of-view that are tiny, even at the ...
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Diagonal Angle of View given Horizontal or Vertical angles of view for equidistant lenses

I am struggling to find the correct mathematical relation between the horizontal and diagonal angle of view for a given aspect ratio for equidistant lenses. For rectilinear lenses, it is possible to ...
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Why is the field of view angle from exiftool different from Apple's official values?

I have two series of photos shot on my iphone 6s on 10.3.2. The first series is in the regular frame, and the second series is in the "square" frame. I'm using exiftool 11.01 on macOS 10.11.6. From ...
3 votes
2 answers
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Distortion towards the edges/corners of the field of view in an image

I am taking a picture keeping the camera horizontally in landscape mode from a height of roughly 3-4 ft, acquiring the top-view of the scene. It was seen that the objects placed towards the centre of ...
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What is the typical FOV / focal length for house interior shots?

I don't do interior shots, but I do see a lot of them these days because I am house hunting. If you look at high end houses on Redfin.com, you can see typical examples done by professional ...
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Finding focal length from image size and FOV

I have bumped into this statement in an Engineering journal. The statement is mentioned on right side example. A 640x480 image with a horizontal FOV of 47 degrees gives focal length f = 740 pixels. ...
2 votes
2 answers
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How to calculate which system will work better for me?

For all intents and purposes assume I am using the same 400mm lens, which would give a me better resolution of the subject (bird)? A 50% crop of 42 megapixel Sony a7riii Fullframe A full crop of 20.3 ...
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How to enlarge an object by x-times with an optical zoom

My camera employs a 30x optical zoom, with focal length ('f' from here on out): f = 4.3 mm to 129 mm. If I am at 1x and I see an object as 100 pixels, to enlarge it to 150 pixels, can I set the zoom ...
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1 answer
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Focal length, sensor size and field of view in digital photography

For a robotics project, I've been testing two cameras 1)ELP USBFHD04H, sensor AR0330, 1/3 inch 2)ELP USBFHD06H, sensor Sony IMX322, 1/2.9 inch Besides, I've been testing different lenses, all of ...
2 votes
4 answers
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When do straight lines become curved when talking about projection?

This in not a question directly pertaining to photography, but the theory of projection in general. Imagine that I'm drawing my surroundings, say, in a city with straight lines everywhere. I start ...
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1 answer
1k views

Why do my camera's specs give a 120 degree angle of view when I calculate it should be much narrower than that?

I have a camera with these specs Image sensor = 1/4' OV CMOS Sensor Image Resolution: 1280*1024,640*480,320*240,160*120 Focal Length: 2.8mm Angle of view: 120 Since it's a 1/4 CMOS i got the width ...
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How to measure field-of-view of a camera with fisheye Lens? [duplicate]

For a camera with a rectilinear lens a simple measurement would consist of taking images from known distance of an object of known size. For example using a sheet of paper as an object set on a wall ...
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How do I calculate the change in HFOV and VFOV as Object Distance changes?

Let's assume that I have the following camera parameters confirmed: Focal Length F/# Coc And a Lens Focusing Distance (the focus distance it was optimized to in the manufacturing process of the lens)....
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How to calculate the Horizontal and Vertical FOV (in mm)

I am having some trouble finding a standard way to calculate the horizontal and vertical field of view of an image based on a set of initial input parameters. I do have values for the following ...
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Picture in Picture with distance in perspective

I have two cameras with the same specifications placed one in front of the other level and horizontal. I know the distance between them and the height of each camera. I want to create a picture-in-...
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