Reference analysis for oil painters

BrushLens

Five tools to decode your reference photo before you pick up a brush.

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7 days free, then $5/month - billed through Patreon. Cancel anytime.

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See the tools

The tools

Everything you need to read your reference

BrushLens Value Grouper showing a portrait grouped into 7 color values
01

Values

Group your reference into 2 to 8 value steps. See the big shapes immediately, in grayscale, umber, or full color. This is what most painters skip and then struggle with.

BrushLens Notan Study showing a 2-value black and white pattern
02

Notan

Reduce everything to a 2- or 3-value pattern. If your notan doesn't read, your painting won't either. Check it here before committing hours on canvas.

BrushLens Color and Value tool showing sampled color matched to Burnt Umber from palette
03

Color & Value

Tap any spot to find the closest match from your actual palette. Switch to compare mode to measure the value difference between any two points in your reference.

BrushLens Temperature Map showing warm and cool zones across a portrait
04

Temperature

See the warm and cool zones mapped across your reference. Get concrete advice on canvas toning and color strategy based on what the image actually tells you.

BrushLens Crop and Compose tool with canvas ratio options and rule of thirds overlay
05

Crop

Plan your composition with common canvas ratios and a rule-of-thirds overlay. Find the strongest crop before you start drawing.

Your photos stay on your device. BrushLens runs entirely in your browser. Nothing is uploaded, stored, or sent anywhere.

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$5 / month

7 days free - cancel anytime

All five tools, unlimited use. Your photos never leave your device. Already painting with The Studio Pass tier? BrushLens is included.

Billed through Patreon. Cancel before your trial ends and pay nothing.

Stop guessing. Start seeing.

Decode your reference before you pick up a brush.