Pentax Pentax K Prime

smc Pentax-M 85mm f/2

85mm
f/2.0
Prime

Quick answer

The Pentax smc Pentax-M 85mm f/2 is a short telephoto prime lens covering 85mm at f/2.0 for the Pentax K mount. Its fast maximum aperture helps in dim light and gives good subject separation.

About this lens

The Pentax smc Pentax-M 85mm f/2 is a fast short-telephoto prime lens covering 85mm at f/2 for Pentax K mount cameras. The focal length is a classic choice for portraits and details.

Pentax smc Pentax-M 85mm f/2 specifications

Brand: Pentax
Mount: Pentax K
Focal length: 85mm
Maximum aperture: f/2.0
Lens type: Prime

What can you shoot with the Pentax smc Pentax-M 85mm f/2?

At 85mm this is a short telephoto prime, which typically suits:

Portraits with a flattering perspective
Events and weddings
Isolating subjects from the background

Its fast maximum aperture helps in dim light and gives good subject separation.

Full-frame equivalent and field of view

Calculated from the focal length and crop factor. Not measured.

Sensor	Crop	Equivalent	Horizontal FOV	Diagonal FOV
Full frame	1.0x	85mm	23.9°	28.6°
APS-C	1.5x	128mm	16.1°	19.3°

Try the field-of-view calculator

Frequently asked questions

What mount does the Pentax smc Pentax-M 85mm f/2 use?

It uses the Pentax K mount, so it fits Pentax K cameras directly.

What is the focal length of the Pentax smc Pentax-M 85mm f/2?

It is a fixed 85mm lens with a maximum aperture of f/2.0. That makes it a short telephoto lens.

Is the Pentax smc Pentax-M 85mm f/2 a prime or a zoom lens?

It is a prime lens with a fixed 85mm focal length. Primes usually open wider than zooms; this one opens to f/2.0.

What is the Pentax smc Pentax-M 85mm f/2 equivalent on a crop sensor?

On APS-C (1.5x crop) it frames like 128mm on full frame, with a 16.1° horizontal and 19.3° diagonal field of view. These figures are calculated from the focal length and crop factor.