Linked Questions

40
votes
3answers
10k views

What does it really mean that telephoto lenses “flatten” scenes?

This is another perspective distortion question. I understand that perspective distortion is primarily a function of capture and viewing distance, but I am still working on fully understanding the ...
14
votes
3answers
7k views

What is the reference point that the focal length of a lens is calculated from?

I understand the idea of a focal length for a single lens, i e the distance from the lens to the point at which parallel rays of light converge. However, in the case of a photographic lens with ...
2
votes
3answers
414 views

relationship between focal length, perspective projection and camera distance

This page here describes that the focal length does not result in perspective distortion, while this page here describes if you increase the focal length and camera distance to infinity then it ...
1
vote
3answers
974 views

does the focal length change the perspective at a given distance? [duplicate]

Situation A: 25mm lense, subject at 5 meters. Take a shot with the Subject covering half of the sensor. Situation B: 50mm lense, subject at 5 meters, Take a shot with the Subject covering the Whole ...
0
votes
3answers
108 views

Zoom or Approaching [duplicate]

I know that capturing a near object and capturing the same object with going apart with zoom makes a lot of sense But I'm confused what change does it do to the picture?? Could anyone help me in this?...
0
votes
3answers
441 views

Do I need to worry about crop factor or sensor size when comparing wide angle lenses for the same camera?

I want to upgrade my wide angle lens to wider, but I don't understand well which lens will give me wide enough angle. I have Nikon D7000 and Nikkor 18-70mm, but I'm thinking of upgrade Tokina 11-16 or ...
5
votes
2answers
3k views

Do I need a telephoto lens to make objects in the distance appear closer? [duplicate]

I have seen some photos where a far-away object looks much bigger compared to nearby objects. Apparently this is called lens compression and it has to do with the focal length of a lens. How can I ...
1
vote
2answers
149 views

Recreate aerial photograph: find correct position

My father has an old aerial photograph of the neighbourhood where he lives (and where I grew up), while it was still under construction, taken around 1975. It's not digital of course, but I ...
1
vote
2answers
1k views

Does say a 35mm on an APS-C camera have the same facial/other deformations as a 35mm? [duplicate]

I am about to purchase a 35mm (Nikon 35mm F1.8 DX) for my APS-C camera, to get the equivalent of a 50mm lens. I want to use it for portraiture a bit, but I'm worried the facial deformations will ...
0
votes
2answers
160 views

Focal length : 7.8 mm-46.8 mm (Equivalent to 35 mm-210 mm on a 35 mm camera) [duplicate]

Bridge Camera : Fujifilm S7000 Could anyone help me to understand the below, Focal length : 7.8 mm-46.8 mm (Equivalent to 35 mm-210 mm on a 35 mm camera) I'm referring to DSLR based articles to ...
-4
votes
2answers
26k views

Why does my forehead look big in pictures vs. reality? [closed]

My forehead in reality is small—normal. Everyone I ask tells me it is normal, not big. In photos it seems too big—not even normal. I am a man. My hairstyle doesn't hide the forehead, it is up. Why in ...
10
votes
1answer
6k views

What are Barrel and Pincushion distortion and how are they corrected?

I have some questions regarding barrel distortion and pincushion distortion. Since they are related I have put them in single post. I am aware that barrel distortion occurs more in wide-angle lenses,...
1
vote
1answer
346 views

Understanding Lens Viewing Angle and Focal Length Relationship [duplicate]

I have a camera module with a lens viewing angle of 185° and a focal length of 1.8. But as far as I can tell, this camera module is not classified as a fish-eye lens. The working distance is ...
1
vote
1answer
998 views

Why doesn't my fisheye adapter gives fisheye distortion on my APS-C DSLR?

I'm new to photography and I have questions about fisheye distortion adapters. I bought a Spiratone/Soligor/Kenko Fisheye lens adapter for my lens, because I didn't want to spent a lot just to try ...
0
votes
1answer
4k views

Best lens for landscape photography on a crop-sensor body (APS-C) [duplicate]

Recently I've been studying Elia Locardi's work and I've noticed he shoots on a Nikon D810 (full frame) with a 14-24mm lens. Even though 14mm is really wide especially on a full frame body, it doesn't ...

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