Pentax HD D FA 15-30mm f/2.8 ED SDM WR

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Zoom lens

A zoom lens by Pentax for Full frame cameras, 15-30mm f/2.8.

What it frames like

Its full-frame-equivalent focal length on the sensor it was made for.

How wide 15mm sees at its wide end on each sensor it covers.

f/2.8 wide open, to scale against f/1.4.

On full frame (Pentax K): as marked, 15-30mm.
On APS-C (Pentax K): like 22-45mm on full frame; f/2.8 gives about the depth of field of f/4.2 there.

See what it frames: its view on the Pentax K-3 Mark III Monochrome at any distance, and its depth of field, drawn to scale.