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Anamorphic Desqueeze Calculator

Turn a squeezed anamorphic recording into the resolution it is meant to be shown at — and see what squeeze factor a delivery aspect would need.

Recorded frame
pixels, 64 to 16384 — the squeezed file as stored
pixels, 64 to 16384 — desqueezing never changes it
Anamorphic lens
how far the lens squeezes the image horizontally
Delivery (optional)
checks the stretch this delivery ratio needs

An anamorphic lens compresses the picture horizontally, so the sensor stores a narrow image that has to be stretched back by the same factor before anyone judges framing. Desqueezed width is the recorded width times the squeeze factor; the height and the total pixel count never change. The display aspect is that stretched width divided by the recorded height, and the pixel aspect ratio the editing or grading software needs is the squeeze factor itself. A 4:3 (1.33x) lens on a 16:9 frame gives 2.37:1, a 2x lens on a 4:3 frame gives 2.67:1, and a 2x lens on a 16:9 frame gives 3.56:1, which is far wider than scope and normally has its sides trimmed. The factor labelled 1.33x is used here as the exact 4:3 ratio; the decimal 1.33 is very slightly less and lands at 2.36:1 on 16:9. Real adapters vary by a per cent or two, focus breathing can shift the apparent squeeze, and this page never inspects a file — take the dimensions from the clip properties. Everything runs locally in your browser with no storage, uploads or network access.