Lumecast
Start every edit right · One shot in, whole shoot sorted
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What is Lumecast?
Pick your hero shot · Get your edit plan · Sync to the shoot
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You come home from a shoot with 400 frames. You don't need to edit all of them — you need to start the first one right. Pick your hero shot, upload it here, and Lumecast gives you a prioritized edit plan: the right adjustments, in the right order, with the right values for your software. Execute it in two minutes, sync to the rest of the shoot. Done.

01
Pick your hero shot
Export one JPEG from your best frame — the one you'll edit first and sync settings from. RAW files aren't supported; export a JPEG first.
02
Get your edit plan
Lumecast reads the pixel data and gives you a numbered sequence — five steps in the right order, with specific values for your editing software.
03
Sync to the shoot
Apply the plan to your hero shot, then sync those settings across the rest of the session. One photo in, whole shoot benefits.
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Upload your hero shot
Pick the best frame from your shoot — the one you'll edit first
JPEG recommended for most accurate results · RAW not supported
Your photo never leaves your device
Uploaded photo
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Your photo never leaves your device

Luminosity Histogram
ShadowsMidtonesHighlights
⚠ Shadow clipping ⚠ Highlight clipping
MeanAverage brightness of all pixels. 0 = black, 255 = white. Around 100–150 is typical for a well-exposed scene.
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MedianThe middle brightness value — half of pixels are brighter, half are darker. Shows where tones are concentrated.
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Std DevHow spread out brightness values are. Low = flat, low-contrast. High = punchy, wide tonal range.
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Your editing software
Edit Sequence Lightroom
Histogram Analysis — Reference ↓
New to histograms? Learn how to read them ↓
Understanding Histograms ↓

A histogram is a graph showing how many pixels in your image exist at each brightness level — from pure black on the left to pure white on the right. It's the most honest read of your exposure that exists, and once you can read one, you'll never guess at exposure again.

The Shape
A histogram bunched to the left is dark — shadows dominate. Bunched to the right is bright — highlights dominate. Spread across the full width means high contrast. A narrow hump in the middle means low contrast or flat light.
Clipping
When the histogram slams hard into either edge, you've lost data. Highlight clipping means those whites are blown — no detail, just pure white, unrecoverable in post. Shadow clipping means pure black — no detail in the darks.
There's No "Right" Shape
A bright, high-key portrait and a dark, moody night scene both have "correct" histograms for what they are. The histogram tells you what's there — your creative intent tells you if it's right. Lumecast assumes a standard exposure unless the image clearly suggests otherwise.
Luminosity vs Color
Lumecast reads the luminosity histogram — the overall brightness of each pixel, converted to a single value. This is the most useful histogram for exposure decisions. Individual color channels (RGB) can show color casts but that's a separate analysis.

The most useful habit: check your histogram after every shot, not the LCD image. The LCD lies — its brightness setting makes everything look fine. The histogram never lies.

A Note on Accuracy ↓

Lumecast reads luminosity data from JPEG files. Because JPEGs are processed and compressed by your camera or export software, the histogram may differ slightly from what your camera shows. RAW files contain more tonal data than a JPEG can represent — if precision matters, compare Lumecast's read against your editing software's own histogram. Post-production suggestions are starting points based on typical adjustments — every image and every scene is different. Use this tool as a guide, not a strict prescription.

Planning your next shoot
Dial in your camera settings with Tricast →
Tricast



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