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PanavisionLensV1.md

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Panavision Lens Effect v1

A ComfyUI custom node that simulates the distinctive characteristics of Panavision anamorphic lenses, including oval bokeh, characteristic lens flares, unique color rendering, and aspect ratio adjustments.

Features

  • Anamorphic aspect ratio control
  • Horizontal squeeze simulation
  • Oval-shaped bokeh effects
  • Dual-color horizontal lens flares
  • Characteristic color temperature adjustments
  • Real-time processing of images

Parameters

Aspect Ratio and Format

  • aspect_ratio (1.85 - 2.76, default: 2.39)

    • Controls the final aspect ratio of the output image
    • Common values: 2.39:1 (standard anamorphic), 1.85:1 (wide-screen)

  • horizontal_squeeze (1.0 - 2.0, default: 1.5)

    • Simulates the anamorphic lens squeeze factor
    • Higher values create more pronounced horizontal stretching
    • 1.5 is typical for classic Panavision lenses

Bokeh Effects

  • bokeh_intensity (0.0 - 1.0, default: 0.5)

    • Controls the strength of the oval bokeh effect
    • Higher values create more pronounced background blur

  • bokeh_threshold (0.5 - 1.0, default: 0.8)

    • Sets the brightness threshold for bokeh effect application
    • Affects which bright areas trigger the oval bokeh

Lens Flares

  • flare_intensity (0.0 - 1.0, default: 0.4)

    • Controls the overall strength of lens flares
    • Higher values create more pronounced flare effects

  • blue_flare (0.0 - 1.0, default: 0.7)

    • Adjusts the intensity of the blue component in lens flares
    • Creates the characteristic cool streak in the flare

  • orange_flare (0.0 - 1.0, default: 0.6)

    • Adjusts the intensity of the orange component in lens flares
    • Creates the warm complementary streak in the flare

Color Rendering

  • highlight_warmth (0.0 - 1.0, default: 0.2)

    • Controls the warm color bias in highlight areas
    • Higher values add more orange tones to bright areas

  • shadow_coolness (0.0 - 1.0, default: 0.15)

    • Controls the cool color bias in shadow areas
    • Higher values add more blue tones to darker areas

Usage

  1. Connect an image output to the "images" input of the node
  2. Adjust the aspect ratio and horizontal squeeze to achieve desired anamorphic look
  3. Fine-tune bokeh effects for background blur characteristics
  4. Adjust flare parameters to create characteristic lens flares
  5. Fine-tune color rendering using highlight warmth and shadow coolness
  6. The processed image will maintain the input batch size with applied effects

Technical Details

  • Processes images in batches (B, H, W, C format)
  • Automatically uses GPU acceleration when available
  • Maintains image quality through bilinear interpolation
  • All effects are applied non-destructively and can be adjusted in real-time

Tips

  • For classic Panavision look, start with 2.39:1 aspect ratio and 1.5x squeeze
  • Bokeh effects are most noticeable in scenes with bright background points of light
  • Flare effects work best with strong light sources in the frame
  • Color temperature adjustments can be used subtly for natural-looking results