this cool look of this photos is a mystery to me, how do they do that?

[William Petruzzo]

It may be film, but it's also not difficult to achieve in Photoshop. The black point is brought up slightly and the white point probably brought down a little. Then the shadows are given a blue/purple cast and the midtones and highlights are just barely tinted green. But the DOF plays a big part in the feel of the photos too.

I would be tempted to believe that it was done with a traditional film camera, except that the vast majority of photographs on the website you referenced are almost definitely digital. Some of them have also clearing gone through some PP. If that's the case, it seems more likely that the adjustments were made in Photoshop to digital images, rather than true film.

 

[adamwilliamking]

From what I say from searching the blog was one guy taking pictures of his friends in new york, a bunch looked like true film, and his buddy is holding another film camera in a number of the photos