Simulate a plastic-lens camera
Toy cameras are associated with uneven color response, high saturation, dark corners, and compressed shadows. The effect builds those traits from the image center outward, with stronger color shift and light loss near the edges.
Saturation affects distance from neutral gray. Crushed shadows changes the lower half of the tone curve. Corner color shift separates red and blue response around the perimeter, while Vignette reduces edge brightness.
Flaws that became a style
The originals earned their look through cheap manufacturing: a single plastic element cannot deliver even illumination, so corners darken; loose tolerances leak and shift color; consumer film pushed saturation to compensate. Lomography turned those defects into rules, “don’t think, just shoot” among them. The controls here separate each defect so the mix is deliberate instead of accidental.
That separation is the advantage over a one-tap filter: a photo can get the dense shadows without the color shift, or the vignette without the saturation push.
Example: beach snapshot
Bright, saturated scenes carry the style best. For a midday beach photo, raise Saturation to about 160, set Crushed shadows near 45 so the shadows go dense but faces survive, then bring Vignette up to 70. Add Corner color shift last, around 50, and watch the sky corners drift magenta against the cyan water: that cross-color disagreement is the signature.
For portraits, halve the shadow crush. Toy-camera shadows flatter landscapes but eat dark hair and eye sockets quickly.
Balance color and falloff
Set saturation and shadow crush while watching faces and dark objects, then add vignette after the tonal grade, and use color shift to break the corners’ uniformity. A strong vignette suits a centered subject but hides details placed near the frame edge, so recompose or lower it when the composition uses the corners.