Linked Questions
48 questions linked to/from What is the difference between perspective distortion and barrel or pincushion distortion?
42
votes
3answers
11k 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 ...
29
votes
6answers
13k views
Is there a difference between taking a far shot on a 50mm lens and a close shot on a 35mm lens?
I am looking for a prime lens to pick up, and I'm wondering if there is any difference between 35mm and 50mm in terms of the end product if I just stand back more with the 50mm. I use the Sony a6000 ...
49
votes
3answers
9k views
What image-quality characteristics make a lens good or bad?
When reading lens reviews on the Internet, I often find subjective statements about the image quality that a lens produces, such as "good contrast" or "sharp". The problem is that I don't think I am ...
17
votes
10answers
3k views
Is replacing all my Fujifilm gear with this Canon zoom lens an upgrade?
I'm a hobby photographer. I like taking portraits, which I often do at festivals and conventions. I usually take the following gear: Fujifilm X-T2 (an APS-C sensor mirrorless camera), a 16-55mm f/2.8 (...
9
votes
4answers
3k views
Why is the background bigger and blurrier in one of these images?
On my EM-10 Mk2, I'm testing a Panasonic 25mm f1.8 (top image) against the 20mm f1.7 (bottom image).
I tried to make the lamp take up the same space in the frame before focusing, yet the background ...
6
votes
6answers
2k views
How does crop factor affect perspective?
I have a question about crop factor and how it affects the perspective.
Suppose you have one Super 35 camera and one APS-C camera. As far as I understand, to photograph the same image on the APS-C ...
6
votes
5answers
4k views
How do I calculate the “effective focal length” of a cropped photo?
Suppose I’ve taken a photo and then cropped it. If the crop is extreme enough then I might want to go back and take the same photo with a more telephoto lens so that I can take full advantage of my ...
9
votes
5answers
1k views
Would a 50mm lens on a Canon APS-C crop produce the exact same image as an 80mm lens on a full frame camera?
Scenario:
I put a 80mm lens on a FF camera and take a picture
I put a 50mm lens on a Canon APS-C crop camera (1.6x crop) and take a picture
Going by the 1.6x crop, I understand the fields of view of ...
7
votes
4answers
1k views
does focal length change across an image?
If an image is taken of a flat surface parallel to a (presumed perfect) lens, is the scale of objects (and therefore focal length) uniform across the whole image? eg. Would an object in the centre of ...
4
votes
2answers
3k views
Does wide angle equivalent in crop sensor skew image?
I see many posts on both this forum and elsewhere the discuss the use of a wide angle on a crop sensor. For example, they discuss how at 14mm lens is 14mm on a 35mm film or full frame, but with a 1....
8
votes
5answers
1k views
Real estate photography: Low distortion lens VS high resolution lens?
Should one choose a (ultra wide) lens with the lowest possible distortion even though its resolution is not very good, over a lens that is very sharp, but has noticeable (barrel/mustache) distortion?
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8
votes
2answers
2k views
Why does lens distortion correction in Capture One also crop?
I tried to get the answer on the official forum here but it was non-conclusive for me. I am trying with a more concise question here:
When I import the RAW files from my Panasonic Lumix LX100 into ...
5
votes
2answers
4k 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 ...
4
votes
5answers
5k views
How is focal length facial distortion different on an APS-C sensor compared to a full frame? [duplicate]
From my understanding (and research) focal length affects how a face will end up looking on a photograph.
Here's an example of focal length distortion on a full-frame sensor:
My question is: will a ...
9
votes
4answers
406 views
What kind of Compositional Elements are used in this pic?
I found this pic in internet and I really liked it. As having interest in photography, I was wondering what kind of composition rules was used in this pic, for example whether it is a contrast, ...