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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)

0
votes
1answer
38 views

How would I calculate the FOV needed in this scenerio

I'm creating an installation involving an LCD Screen and camera, basically I want the LCD screen to display a view of what the person would see if looking through the LCD screen. Please see the ...
1
vote
7answers
219 views

Buying a Nikon DSLR Camera body only, is a 35mm and 55-200mm lens enough for most cases?

New to photography using DSLR. I am planning to buying an entry level Nikon DSLR (perhaps the D3300). I read around and decided to buy the body only, excluding the kit lens. I have decided to go ...
5
votes
4answers
8k 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
113 views

What is the relationship between field of view and focal length for fisheye?

What is the relationship between the focal length and field of view for an equal-area ("equisolid") projection fisheye lens? Alternatively, what is the relationship between the 180-degree image ...
0
votes
3answers
67 views

Converting FOV to Distance?

I have a camera with CS mount and I am now trying to figure out the best fixed-lens to buy so that my camera can see the object at a distance of 5" without the object looking like a tiny dot, it is ...
2
votes
5answers
1k views

What is the difference between zooming in and cropping?

If I take a photo by zooming in (optical) and cropping a photo without zoom. What would be the difference between the two? I know cropping reduces the photo quality but I'm interested in other ...
2
votes
1answer
164 views

Why do photographs make a place look bigger than it is?

Observation: I recently went to visit a cricket stadium that I have seen quite often in television. Though the stadium looked huge in television, visiting the stadium made me realize that it was not ...
41
votes
12answers
7k 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 ...
2
votes
5answers
51k 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
2answers
139 views

Shouldn't the diameter of the moon with a 600mm lens be double what it is with a 300mm lens?

I used a 300 mm lens and recently bought a 600 mm lens, thinking that the area in the frame with the 600 mm lens will be exactly half of the area covered by the 300 mm lens. Practically I am not ...
2
votes
1answer
121 views

How do I find the focal length when stitching images made with an unknown lens in Hugin?

I tried to stitch some images from appollo 16 to a panorama. The problem is that I do not know the focal length of the lens. Is there a way to circumvent this?
0
votes
4answers
80 views

Is there a list of technical terms for angles shots are taken at?

I'm dealing with digital product (packaged goods) photos, and the data I get includes descriptions like "front", "front side right angle", "front side left angle", "top", "right", "left", "bottom", "...
6
votes
6answers
7k views

Why do Full Frame lenses and crop body lenses exhibit the same crop factor when used on a crop body camera?

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 ...
0
votes
0answers
47 views

Calculating field of view of aerial photographs [duplicate]

I took photos at varying heights (30-60 m) using a gopro hero4 (f2.8 wide-angle lens, 1/2.3-inch type 4:3 sensor with 4,000 x 3,000 pixels) angled at -60° on the horizontal axis. How do I calculate ...
0
votes
1answer
79 views

How do I calculate the field of view of a 50mm focal length biconvex lens with the retina as sensor?

Hi I need to know the field of view of a 50mm focal length lens. I know the field of view is dependent on focal length of the lens and the image format dimension (i.e., dimensions of the sensor). If ...
4
votes
4answers
749 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 ...
3
votes
1answer
97 views

Which lens size will generate more detail for equivalent field-of-views in an image snapshot?

We are getting ready to purchase a 3 megapixel IP camera. It comes with either a 4mm or 6mm lens. We will only be using the camera for still image snapshots on a specified interval. Basically, it's an ...
0
votes
1answer
132 views

What's the ranges of ratios of Focal Length to Sensor Height to approximate a human eye's view? [duplicate]

Given this formula for calculating the distance to an object as long as you have a picture of the object and know the actual height of the object... distance to object (mm) = focal length (mm) * real ...
1
vote
1answer
60 views

Choosing lens for a studio to record classes [duplicate]

I'm building a home studio to record Math classes: I have a blackboard (1,90m width by 1,20m height) and the distance from the camera to the blackboard would be around 1,80m (on a tripod, 1,70m from ...
17
votes
9answers
63k views

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

For example, if I have a lens that is 16mm-50mm, which focal length would be the closest to the human eye's view? (I don't have a camera yet, so I'm just curious.) Would 50mm be more zoomed in than "...
1
vote
2answers
7k 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 ...
61
votes
6answers
22k 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 ...
15
votes
4answers
4k 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 ...
0
votes
6answers
497 views

Why does Sony say that a 35mm lens is “35mm equivalent when used with an APS-C camera?”

I'm thinking of getting a Sony A6000 with a Sony SEL35F18 Lens. I'm a little confused about the actual focal length (and/or field of view) of the lens when attached to an APS-C sized sensor. The ...
0
votes
5answers
501 views

How to work out the base “zoom magnification” of a lens? [duplicate]

I've come from 3x Zoom magnification land and am having a hard time adapting to all these complex "mm" systems. I'm thinking about buying some lenses to enhance the range of zoom of my Sony A5000 ...
0
votes
2answers
972 views

Why do photographed objects in the distance appear smaller than they do by naked eye?

Why do objects in photos appear smaller than they do when viewed by the naked eye? For example, a mountain would appear far smaller in a photo than in real life. Does it have to do with the field of ...
1
vote
3answers
1k 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?
8
votes
2answers
11k 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
1answer
123 views

How would I insert a huge object into a panorama photo with correct position and height?

I want to insert a large object into a panorama photo, in this case a wind turbine. However, I want the object to be at the correct position and it should have the correct height. The area has many ...
1
vote
2answers
394 views

Which sensor “full frame” vs. APS-C (1.6 crop) gives more distortion?

Which sensor "full frame" vs. APS-C (1.6 crop) gives more distortion using the same lens? I mean, would a 10mm lens on a full frame camera show more or less distortion than if it were on an APS-C (1.6 ...
3
votes
1answer
144 views

Why is the field of view of my lens narrower than my calculations show it should be?

The field of view of the Panasonic GH4 Micro Four Thirds camera with a 12mm lens is 84°. At a height of 120m, pointing straight down, I should be able to see 216m1 of ground across the diagonal of ...
0
votes
1answer
279 views

How do I find the focal length that will fit a poster in the frame from across the room?

If suppose I want to take a photograph of a poster on the wall of the room, so I can't back away any farther than 5.0m to take the shot(max dist of the room). The poster is 0.80m wide and 1.2m tall, ...
1
vote
3answers
177 views

How can I get a 12ft wide field of view at 3ft distance?

Is it possible to get 12ft wide image from a 3ft distance? I am a beginner and have very little knowledge on the field of view of cameras. I calculated that a Go Pro would need a lens with 1.5mm ...
1
vote
2answers
2k 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 ...
2
votes
4answers
936 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 ...
1
vote
4answers
202 views

Does the crop factor affect the field of view (FOV)? [duplicate]

I'm working on smartphone cameras. I want calculate Field Of View of different smartphone cameras using the formula : FOV = 2 arctan(SensorSize/2f) where: f is the focal length sensor size is the ...
1
vote
2answers
554 views

What type of lens is more suitable for this type of portrait shot on railroad tracks?

Posted on FaceBook looking for volunteers to model for me for free and I give them the photos for free and some people agreed to that so I want to be prepared and at least take the right gear to the ...
1
vote
2answers
365 views

Comparison of DOF between a 30mm f/1.4 and a 35mm f/2 lens

I would like to buy a wide-aperture lens for an APS-C DSLR (Canon EOS 500D, crop factor 1.6x) with equivalent standard focal length. However, I was unable to decide between Sigma 30mm f/1.4 and Canon ...
3
votes
1answer
322 views

How to calculate the correct focal length needed for a subject of a given size and distance?

I need to purchase my first ever lens. So far I've only used lenses that were built into a camera. This specific lens is for the BlackMagic Deign Pocket Cinema Camera (a video only camera, but one ...
0
votes
1answer
60 views

Why does the FoV of adapted lenses seem to be the same as kit lenses with the same focal length?

I have a NEX-6 with a number of legacy lenses and the two NEX "kit" lenses. If I fit the 16-50 kit lens, setting it to 50mm, and view the image through the viewfinder, noting the width of the image, ...
1
vote
0answers
21 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 ...
3
votes
3answers
638 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 ...
5
votes
6answers
4k 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 ...
0
votes
1answer
134 views

Difference in image capture area between full frame and medium frame

Is the view/capture area of image from any camera with same lens (say 50mm) change when going from a full frame to a medium frame type camera?
0
votes
1answer
208 views

How to recreate the perspective and field of view of an existing photo? [duplicate]

Some days ago, I found myself in the middle of a much-used road to recreate a photo of the same scene from over a hundred years ago. The result is quite alright, but far from perfect. What techniques,...
2
votes
2answers
232 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?
0
votes
1answer
177 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 ...
2
votes
2answers
6k 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 ...
0
votes
1answer
862 views

What's the practical difference in an image taken at focal length of 200mm vs 300mm? [duplicate]

I'm confused about the 200mm and the 300mm zoom ranges. I am looking for some examples of the same subject, in order to visualize the difference between 200mm and 300mm focal lengths. I want to ...
5
votes
2answers
248 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) ...