Split Intensity adjusts how strongly the organic tonal split of the negative film stock is applied to your picture. This tonal split refers to the way negative film reacts differently in highlights and shadows, giving film its distinct character—especially in how light areas bloom and dark areas roll off. This control is designed to emulate that response in a digital environment, allowing you to either enhance or suppress this natural behavior.

Image Here: Side-by-side comparison of Split Intensity at low and high settings using the same footage and negative stock — ideally with shadows and highlights in focus.

Caption: Left – Split Intensity reduced (subtle tonal split); Right – Split Intensity increased (strong tonal contrast in highlights and shadows).

When you increase the Split Intensity, the plugin enhances the split behavior — highlights gain a stronger, more reactive tone, and shadows deepen with more noticeable falloff, much like what you’d see in film scanned under strong exposure conditions. Reducing it softens that character and retains only the contrast response of the stock, leading to a more neutral, balanced image.

This is only influenced by the selected negative stock — it has no effect on the tonal curve or color behavior of the print stock. This separation gives you more flexibility in building the look: the negative determines how your footage internally behaves, while the print defines the final output appearance.

Creative Purpose:

The Split Intensity control is not just a technical knob—it’s a creative gateway. In traditional workflows, achieving a stylized highlight/shadow separation often involves complicated curves or layering, which can break down quickly or create artifacts. With this control, you can push the visual style confidently without compromising tonal integrity.

By dialing it up, you create a stylized, sometimes retro-emotive mood. By turning it down, you retain the contrast character without making the image look filtered or overly processed. This is particularly helpful when you want to preserve the cinematic tone of a film stock but keep it restrained for commercial, narrative, or documentary work.