Pentax K-m

Released September, 2008
  • 10 MP
  • APS-C 23.5 x 15.7 mm CCD
  • 2.7" LCD
The control dial has a positive action and the right weighting, and the viewfinder is big and clear.
by TechRadar (Dec, 2008)
8.9 Out of 10

Camera Rocket Review Our evaluation of the Pentax K-m

Image Quality

RAW image quality independent of lens

Pentax K-m
8.1
K-5 IIs
9.7
DxOMark Low light, DxOMark Color depth and DxOMark Dynamic range

Focusing

How fast and easily does the camera nail focus

Pentax K-m
n.d.
K-5 IIs
n.d.
Pentax K-5
n.d.
Focus lag, cross type focus points and focus points

Responsiveness

How much delay is there between you and your photo?

Pentax K-m
10.0
K-5 IIs
10.0
Pentax K-5
10.0
continuous shooting

Reviews

What do the experts think?

Pentax K-m
9.0
K-5 IIs
9.6
Reviews from techradar.com, trustedreviews.com, dpreview.com and reviews.cnet.com

8.9

Camera Rocket Score

Image Quality, Focusing, Responsiveness and Reviews

Pentax K-m
8.9
K-5 IIs
9.6

Benchmarks Real world tests of the Pentax K-m

Low light image quality Highest ISO setting that still achieves great image quality

Pentax K-m
513 ISO
D3300
1,385 ISO
K-5 IIs
1,208 ISO

Resolution Results from photos of standard resolution charts

Pentax K-m
2,500 LPH
D3300
3,000 LPH
K-5 IIs
2,100 LPH

Continuous shooting Delay between fully pressing shutter to image capture

Pentax K-m
3.5 fps
K-5 IIs
7 fps
Pentax K-5
7 fps

Color depth The number of variations of color the camera can capture

Pentax K-m
22.4 bits
D3300
24.3 bits
K-5 IIs
23.9 bits

Dynamic range Maximum range a camera can capture in one image from light to dark

Pentax K-m
11.4 ev
K-5 IIs
14.1 ev
Pentax K-5
14.1 ev

Photo Gallery Wallpaper quality closeups of the camera

Reviews Word on the street for the Pentax K-m


6.5
The K2000 is probably the most accessible DSLR Pentax has yet made, with its small size, refined interface and very reasonable balance of features and price.

8.0
The K-m has a fairly good five-point AF system, with a choice of wide area or centre spot focusing, and it does focus quickly and accurately in most lighting conditions, but for shots where the main subject is not in the centre of the frame, or where a precise focus point is desirable such as macro photography, it would be an advantage to know exactly where the camera is focusing.

7.3
The K2000 also has Pentax's Sensitivity Priority mode, which allows you to select ISO sensitivity while shutter speed changes and aperture remains fixed; this is especially useful for homing in on appropriate settings for low-light shooting.

9.0
This is a great camera for shooting JPEGs because you can experiment with all these colour modes knowing that you're scarcely losing anything in quality by not shooting RAW.

Overall

8.0 Out of 10

What People Are Saying Give it to me straight

Lens

Because Pentax's anti-shake is built into the body, it should offer shake-reduction with any lens, whereas Nikon and Canon favour stabilisation systems built into the lens instead.
by TechRadar (Dec, 2008)
You'd have to invest in one of Pentax's more expensive zooms to get round this (the 17-70mm f/4, for example), but this will double the price.
by TechRadar (Dec, 2008)
We have tested each of these lenses and their performance is all-but identical at the apertures used (though the Zuiko is more consistent into the corners of the frame).
by DPReview (Jan, 2009)

Sensor

Whatever changes the system is making, they're included in the RAW file (probably via a metadata tag) in such a way that they can be interpreted by a variety of RAW converters, so you are not tied to Pentax's own software to see the benefit in RAW.
by DPReview (Jan, 2009)
It has a menu button and D-pad, with secondary functions on the D-pad buttons for white balance, ISO setting, flash mode and self-timer/drive mode.
by TrustedReviews (May, 2011)
Which makes the dissappointing JPEGs even harder to understand: if the sensor is capturing at least as much detail as the Canon, why does it need such crude sharpening to convey that detail in JPEG?
by DPReview (Jan, 2009)

Focus

It uses the K200D's sensor but comes with a simplified control layout (geared towards users coming from compact cameras) and a less sophisticated AF-system (5 points vs 11 on the K200D).
by DPReview (Jan, 2009)
It is possible to focus on specific points by using the centre spot AF and re-framing, but other entry-level SLRs have selectable AF points with illuminated viewfinder targets.
by TrustedReviews (May, 2011)
You don't get illuminated AF points, alas, and although the K-m's 5-point AF system is a little more sophisticated than the 3-point systems in the Nikon D60 and Olympus E-420, say, there's very little advantage if the AF points aren't highlighted in any way.
by TechRadar (Dec, 2008)

Raw

From looking at the camera's RAW output, it's obvious that it is capturing at least as much detail as its peers, yet this detail isn't being expressed by its internal JPEG engine.
by DPReview (Jan, 2009)
While it's not uncommon for RAW conversion to be able to produce better results than the camera's JPEGs, it's uncommon for the gulf to be so wide.
by DPReview (Jan, 2009)
but it's pretty easy to clean it up in either the supplied Silkypix software or Adobe Camera Raw.
by TrustedReviews (May, 2011)

Iso

While you should probably stick with ISO 400 and below for general shooting, I found photos generally usable as high as ISO 1,600, depending upon output size and content.
by c|net (Jun, 2009)
Even 3200 ISO isn't a complete disaster, as long as you don't want to blow the pictures up too much.
by TrustedReviews (May, 2011)
At ISO 1600 it is able to match its peers for detail.
by DPReview (Jan, 2009)

Specifications Full list of technical specs

sensor

Type CCD
Megapixels 10 MP
Resolution 3872 x 2592
Size APS-C
Area 23.5 x 15.7 mm
Crop factor 1.5x
Pixel size 36.8 microns
Light sensitivity 100 ISO to 3,200 ISO
Codecs
  1. RAW
  2. JPEG
Tested vertical resolution 2,500 LPH
Tested horizontal resolution 2,500 LPH

focus system

Type Contrast detection

viewfinder

Viewfinder mirror Opaque
Viewfinder Viewfinder
Type Pentamirror
Coverage 96%
Magnification 0.85x
Viewfinder size 0.55x

performance

Max continuous shooting 3.5 fps
Continuous shooting 3.5 fps, JPEG

features

Includes a GPS No
Supports HDR No
Automatic panorama No
Create realistic 3D images No
Image stabilization Sensor shift

video

Video None

display

Type LCD
Size 2.7"
Resolution 230 k dots
Has a touch screen No
Has a flip out screen No
Supports live view No

shutter

Min 30 s
Max 1/4000 s

form factor

Size 123 x 92 x 68 mm
Thickness 68 mm
Weight 590 g
Is weather sealed No
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