Battery compartment

In the base of the camera's hand grip is the battery compartment, the door is opened by sliding a lock lever to the left and then pulling the door towards the front of the camera. Inside the compartment supports either four AA or two CR-V3 Lithium non-rechargable batteries.

Secure Digital (SD/SDHC) compartment

The K100D (as of firmware 1.01) supports both SD and SDHC media, the compartment door is in the side of the hand grip and is opened by sliding it towards the rear. The retention of the card is on a simple press to insert, press to remove. Standard SD cards provide capacities of up to 2 GB, SDHC for capacities of 4 GB or more. Just like the *ist DS the K100D will shutdown immediately if you open the card door, we're not a big fan of this as it can lead to a loss of buffered images (we would prefer a loud 'beep' warning alarm and notice on the LCD monitor if the door is opened during write).


On the left side of the camera behind a solid spring loaded door (Kudos) are all of the camera's connectors. These are (from top to bottom); wired remote, combination USB 2.0 and video out and DC-IN (6.5 V).

Camera base / tripod mount

The base of the camera has a metal tripod mount aligned with the lens axis and focal plane, other than that a fairly flat and unsurprising appearance, no rubber foot unfortunately.

Pop-up flash

The K100D has a 'P-TTL' pop-up flash unit which has an electronic catch-type release (meaning it can be raised manually or automatically by the camera). The flash unit has a guide number of 15.6 (which equates to an approximate range of 5.5 m at F2.8, ISO 200) and a field of view coverage of approximately 18 mm. Flash sync speed is 1/180 sec. The K100D doesn't have a dedicated AF assist lamp, instead it strobes the flash unit (if raised) to provide additional illumination to the AF system.


The K100D hot-shoe can be used with Pentax specific flash units to achieve P-TTL auto flash, high-speed sync and wireless (such as the AF540FGZ or AF360FGZ) or simply to provide a sync signal to third party flash or studio strobes.

Lens Mount

The K100D has a KAF2 bayonet lens mount which can take lenses with a KAF2, KAF or KA mount lenses. Obviously Pentax now has a range of DA 'designed for digital' lenses which are designed for the APS size sensor (smaller imaging circle) which are smaller and lighter than full frame lenses. The K100D's sensor is approximately APS-C size which equates to a 1.5x field-of-view crop compared to a 35 mm film camera, so a 50 mm lens on the K100D will produce a field-of-view of approximately 75 mm equivalent.

Shutter Release Sound

In some of our digital SLR reviews we now provide a sound recording of a continuous burst of shots to provide a sample of the shutter release sound. This recording may not fully reflect the fact that the K100D's shutter release is surprisingly loud, certainly louder than the Canon EOS 350D or Nikon D50. The SD card used was a Lexar 133x 1 GB.

JPEG Large/Best continuous, 30 seconds

Pentax K10D JPEG Large/Best - 36 frames (5 frames at 2.66 fps then 31 frames at 1.2 fps)

Pentax K100D JPEG Large/Best continuous: 519 KB MP3

Supplied In the Box

The K100D is offered as body only or as a kit with the DA 18-55 mm lens. The K100D body only is supplied as:

  • Pentax K100D Digital SLR body
  • Body mount cover
  • Eyecup FO
  • ME Viewfinder cap
  • Hot shoe cover FK
  • Four AA Alkaline batteries
  • Neck strap
  • USB cable
  • Video cable
  • CD-ROM
  • Manuals / Reg. card