Compare lenses

Pentax HD D FA Macro 100mm f/2.8 ED AW vs Pentax HD DA 70mm f/2.4 Limited

The Pentax HD D FA Macro 100mm f/2.8 ED AW and the Pentax HD DA 70mm f/2.4 Limited side by side, computed from this guide's catalogue.

Which to pick

Pick the Pentax HD D FA Macro 100mm f/2.8 ED AW if you want coverage of full frame, so it suits the larger-sensor bodies too. Pick the Pentax HD DA 70mm f/2.4 Limited if you want a brighter f/2.4 (0.4 stops more light), for dim light and softer backgrounds; a design for APS-C, which usually means smaller and lighter; and a lighter lens (131 g against 348 g).

Still torn? Ask the guide about the Pentax HD D FA Macro 100mm f/2.8 ED AW and the Pentax HD DA 70mm f/2.4 Limited

Specs side by side

Rows that differ are in full colour; the better value is marked where one is better by any measure.
Spec	Pentax HD D FA Macro 100mm f/2.8 ED AW	Pentax HD DA 70mm f/2.4 Limited
Maker	Pentax	Pentax
Focal length	100mm (macro)	70mm (prime)
Full-frame equivalent	100mm	105mm on APS-C
Maximum aperture	f/2.8	f/2.4brighter
Made for	Full frame	APS-C
Mounts	Pentax K	Pentax K
Stabilised	no	no
Autofocus	yes	yes
Weight	348 g	131 glighter
Cameras it fits	20 in this guide	20 in this guide

Focal range, in full-frame terms

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

Pentax HD DA 70mm f/2.4 Limited: 70mm on APS-C, like 105mm.

Aperture

Pentax HD D FA Macro 100mm f/2.8 ED AW: f/2.8 wide open.

Pentax HD DA 70mm f/2.4 Limited: f/2.4 wide open.

Each opening drawn to scale against f/1.4: a smaller f-number lets in more light and blurs the background more.

Field of view

How wide each sees, at each end, on the sensor it was made for.

Cameras they fit

20 cameras in this guide take both, so either works on the same body.