Some kind of photo

I want to talk about photography, it's a interesting practice that consist in capture electromagnetic radiation, such as light, on a light-sensitive material. You could do it either by chemical or electronically ways.

 Today the digital formats brings to us an unlimited possibilities of image manipulation, with software like Photoshop you can create a complete new picture even without a base image. But not all is a computer thing, the optical possibilities on the main camera are interesting too.

First, one of the basic commands to control light is the aperture. This is the adjustment of the lens opening, measured as f-number, which controls the amount of light passing through the lens. Aperture also has an effect on depth of field and diffraction – the higher the f-number, the smaller the opening, the less light, the greater the depth of field, and the more the diffraction blur. The focal length divided by the f-number gives the effective aperture diameter. 

This single control make possible these beautiful pictures.
High f-number   This too
Low f-number  And this one

There are different types of lens, such as Macro, Ultra wide zoom (Fish eye), Telephoto Zoom, Standard zoom, etc. One is specially funny, because it makes look the photo like a toy-made photo. It's called Tilt Shift, here are some examples.

And this is the strange types of lens that produce the images.

Finally I want to give you the link of some photographs taken by me. 500px, Photo Gallery