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What kind of camera lens is that?

macro
telephoto
ultraviolet
underwater
Small front lens elements are typical for macro lenses.
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Answers by country

macro
telephoto
ultraviolet
underwater
answers
flagGreece
68%
18%
12%
0%
16
flagthe United Kingdom
66%
19%
6%
4%
135
flagAustralia
65%
17%
3%
10%
29
flagPoland
64%
17%
7%
9%
15192
flagGermany
61%
18%
4%
15%
44
flagPakistan
60%
20%
13%
6%
15
flagthe Netherlands
60%
20%
10%
10%
10
flagUnknown
58%
16%
12%
12%
24
flagIndia
54%
16%
14%
10%
211
flagthe Philippines
54%
4%
13%
27%
22
flagthe United States
51%
22%
17%
6%
406
flagCanada
50%
23%
11%
14%
34
flagSouth Africa
50%
10%
20%
20%
10
flagRepublic of Ireland
37%
37%
12%
12%
24
flagRwanda
36%
27%
0%
27%
11

Which area is brighter?

A
B
Both are the same
It depends on the order of seeing

Why do cats have vertical pupils?

to have sharper vision
to better see in the dark
to be more attractive
it is a useless mutation

This optical phenomenon, appearing on misty mountainsides, is called...

Side rainbow
Halo
Brocken spectre
Sun Dogs

What kind of photos can be made with standard zoom lens mounted in the reversed position?

panoramic
night
high-speed
macro