Feeds
90%
Pentax 645D

Pentax 645D medium format digital camera

The 40Mp field worker

  • alert
  • submit to reddit

Intelligent flash storage arrays

Review Back in 2003 Pentax hinted at the development of a digital version of its classic 645 medium format film model. Given how much time has passed, I was beginning to wonder if it would ever see the light of day.

Pentax 645D

Late developer: here at last, Pentax's 645D

The Pentax 645D uses a 40Mp Kodak KAF-40000 full-frame CCD sensor [PDF here], which is 44 x 33mm in size, producing 7264 x 5440 pixel files. The pixel size is the same as the Nikon D3x but the sensor measures more than double the DSLR's, giving the 645D a huge advantage in terms of resolution.

Like the Leica S2, the native resolution is further improved by the lack of anti-aliasing filter. It also features effective mirror dampening and a mirror lock-up function – these minimize camera shake and reduce mirror mechanism noise and blur. Unfortunately like almost all CCD-based cameras, the 645D does not offer Live View.

Following in the footsteps of its film predecessor, the 645D is built for fieldwork and features 11-point autofocus, 77-segment metering and dual SD/SDHC card slots. Incidentally, Pentax has recently released a firmware update to enable SDXC card support. At £9,000 for the body-only, it is a very good deal when pitched against its natural competitors such as the Hasselblad H-system, the Leica S2 and Phase One cameras.

Pentax claims the 645D is the first medium format to be equipped with a sensor dust removal system, and it comes with full weather seals – both essential features for any serious outdoor use. Also handy is the dual slot for SD/SDHC memory cards that allows for simultaneous saving in multiple formats and the extra tripod mount for portrait orientation.

Kodak KAF-40000

Kodak's 40Mp sensor dwarfs DSLR full-frame offerings

The 645D is bigger than a high-end DSLR, mostly due to the larger mirror-box adding bulk to the middle of the body. It has a magnesium alloy casing and die-cast aluminum chassis that reduce weight while increasing strength and thermal resistance. Indeed, the 645D was much lighter than I expected.

Beginner's guide to SSL certificates

Next page: Comfort zone

More from The Register

next story
PEAK APPLE: iOS 8 is least popular Cupertino mobile OS in all of HUMAN HISTORY
'Nerd release' finally staggers past 50 per cent adoption
Tim Cook: The classic iPod HAD to DIE, and this is WHY
Apple, er, couldn’t get the parts for HDD models
Apple spent just ONE DOLLAR beefing up the latest iPad Air 2
New iPads look a lot like the old one. There's a reason for that
Google Glassholes are UNDATEABLE – HP exec
You need an emotional connection, says touchy-feely MD... We can do that
Caterham Seven 160 review: The Raspberry Pi of motoring
Back to driving's basics with a joyously legal high
prev story

Whitepapers

Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
New hybrid storage solutions
Tackling data challenges through emerging hybrid storage solutions that enable optimum database performance whilst managing costs and increasingly large data stores.
Getting ahead of the compliance curve
Learn about new services that make it easy to discover and manage certificates across the enterprise and how to get ahead of the compliance curve.