jan1959

Placed 48^th in the challenge. Tulip fields in the Netherlands

Placed 34^th in the challenge. Huawei LYO-L21

Optical laws dictate the following numbers:

Diffraction circles can be calculated for a given F/stop with a diffraction calculator like this...

Placed 4^th in the challenge. Base picture: 24 mpixels -B/W filter: enhance red & yellow (simulate color sensitivity of old emulsion -Convert to B&W - Increase contrast - Lens filter: vignetting (simulating old lens flaws) - Blur 2-3 pixels (simulating lack of sharpness overall) - Radial blur: 5% (simulating edge blurring of old lenses) - Add monochrome noise: 16% (simulating grain) - Blur 1-2 pixels (smoothing grain) - Reduce image to any size. (2000px here)

Placed 3^rd in the challenge. Optical cables ubiquitous in data centres are the backbones of the internet.