Pentax HD D FA Macro 100mm f/2.8 ED AW

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Macro lens

A macro lens by Pentax for Full frame cameras, 100mm f/2.8. A weather-sealed 1:1 macro lens.

What it frames like

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

How wide 100mm sees on each sensor it covers.

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

On full frame (Pentax K): as marked, 100mm.
On APS-C (Pentax K): like 150mm 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.