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0
votes
2answers
75 views

How can I easily tell if a cellphone camera sensor or lens is damaged?

How can I easily tell if a cellphone sensor or lens is damaged?
0
votes
2answers
177 views

What kind of lens are used in mobile phones?

Usually what kind of lens are used in mobile phones. I mean of the types similar to convex, concave etc.. Are they fixed focal length usually? How do we get the focal length of camera from digital ...
13
votes
2answers
3k views

How iPhone 5S can have such a big aperture? f/2.2?

I thought that in order to have a big aperture such as f/2.2 a big amount of light should be able to enter to the sensor and in order to do it, a big lens was needed. How is it possible that in the ...
8
votes
5answers
5k views

Why does my HTC cell phone lens appear so dirty, and how can I clean it?

My cell phone lens that looks dirty; or, I'm not even sure it qualifies as a lens — it's the transparent cover. See the photo below. I'm not sure if the lens was always like this or it happened at ...
19
votes
3answers
3k views

What makes a Carl Zeiss lens so special in a smartphone?

There are smartphones on the market that have a focus towards photography. Some are equipped with a Carl Zeiss lens. I have looked into Wikipedia, which tells me that they are a brand who produces ...