Instead of Photoshop filters that look fake, Petteri uses a grain file he created by scanning a photo of a cloudless sky taken with a traditional camera and high-speed film. He then layers the grain file on top of a digital photo, and sets the blending mode of that layer to “Overlay.” Voila! Instant reportage photo!

If you’re lazy like me, you can download Petteri’s already prepared grain file:

• Grain file, hi-res
• Grain file, low-res

For more instructions, check out Patteri’s tutorial.