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03-11-2010, 07:39 PM   #1
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Pentax 645D

PENTAX Japan introduced the medium format PENTAX 645D digital SLR on March 11, 2010. The camera boasts a 40MP Kodak sensor with an image area of 44mm x 33mm, is weather resistant, and specified to work down to -10 degrees C. It is fully compatible with the PENTAX 645 A and FA lines of medium format lenses.

Year introduced
Japan, USA, Europe
Meter range
2 to 21 EV (ISO 200, 55mm f/2.8 lens)
Meter pattern
m (77 segments) c s
ISO range (expanded)
200 - 1000 (100 - 1600)
Expanded dynamic range
Yes, highlight and shadow
Exposure modes
HyP, Sv, Av, Tv, TAv, HyM, X, B
Scene Modes
Exposure compensation
+/-5 EV
Exposure lock
Shutter speeds (auto)
30s - 1/4000s (stepless)
Shutter speeds (manual)
B, 30s - 1/4000s
Mirror lock-up
Self timer / Interval shooting
Yes / Yes
Continuous shooting
1.1 fps up to 13 frames at 40MP RAW, 1.1 fps up to 15 frames at 40MP JPEG
Shake reduction
Auto bracketing
HDR mode
Multiple exposures
Built-in flash
TTL flash
P-TTL flash
Sync speed
Yes (SAFOX IX+, 11 focus points, light wavelength sensor)
Autofocus with SDM
AF Assist
Power zoom
Not applicable
Lens correction
0.62x (with 55mm lens), 0.85 (with 75mm lens), 98%
Viewfinder type
Trapezoid prism finder
Diopter adjustment
-3.5 to +2.0
AF Points in viewfinder
Depth of field preview
Digital preview
Live view
Video/Movie Mode
Movie mode restrictions
Not applicable
Sound in Movie mode
Not applicable
Camera controls
2 control wheels. Many dedicated buttons
40 MP CCD, 7264 x 5440 pixels, no low-pass filter
Image size
33 x 44 mm
Color Depth
3 x 14 bit (RAW)
Dust removal / alert
DRII (ultrasonic) / Yes
File format
Memory card type
SD, SDHC (two slots)
Not known
Back LCD
3 in. 921,000 pix
Yes, reinforced glass
Weather resistant
D-LI90 lithium-ion rechargeable
Battery grip
Size (W x H x D)
156mm x 117mm x 119mm
1400 g (1480 g with battery and two SD cards)
Latest firmware
Version 1.01

Lens compatibility: PENTAX 645A, 645 AF, 645 AF2
Other: Embed copyright information in EXIF
Image plane indicator
In-camera RAW development

Attached Images

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Last edited by Ole; 01-06-2011 at 06:56 PM.
03-31-2011, 07:56 PM - 1 Like   #2
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Pentax 645D Camera Review

Pros Fast Focus, Price Point for Medium Format, lots of glass available
Cons 14bit RAW, Small Grip, Small eye piece,
Rating 8
Price (U.S. Dollars) 10,499
Years Owned Demo Unit

I can recommend this camera: Yes

Value, Features, Performance & Size
Feels like a DSLR in the menus and operations. Lets a user get into the Medium Format market for almost half the price of your standard Hasselblad/Phase One.

Camera Review
This week I was booked to shoot some marketing material for Canada Olympic Park. On Tuesday The Camera Store gave me the Pentax 645D to try out. They wanted to shoot a behind the scenes video of sports and “Medium Format” cameras.

The Pentax performed great all day. I was used to the focusing speed on the H series from Hasselblad and this new Pentax was a real treat as far as focusing speed goes.

Unlike the Hasselblad digitals and Phase One backs that both shoot in 16bit RAW, the Pentax shoots 14bit, similar to a Nikon Raw format. I was initially a little concerned about this, for large prints. After working a couple of the files in PS, these 14bit files are still pretty stellar.

There is a large selection of both focal plane and leaf shutter glass available for the 645D. This is a nice little bonus, as my Hasselblad system has a very limited number of lenses available. The Hassy is also only “leaf” shutter, so you are limited up to 1/800th of a sec for shutter speeds. The Pentax 645D’s ability to accept both leaf and focal plane means you are able to jump up to 1/4000th if the job requires it.

For about half the price of an entry level Hasselblad or Phase system, the Pentax is a killer choice. I can definitely see this camera making a larger presence on the lifestyle and wedding circuit. The 645D has the ability to give you that unparalleled fall off and D.O.F. in a medium format (not to mention it shoots a native 18×24 @ 300dpi).

We shot for about 4hrs on Tuesday and the Pentax battery barely dropped a bar. Usually when you’re shooting winter sports the batteries in the bigger cameras take a pretty big hit. This camera held up throughout the shoot.

For those of you only running laptops to do your editing and worry that a digital medium format file will bog down your system to no end… Don’t. The files are a modest 50-70mb each, and being 14bit, they won’t murder your machine’s RAM, whether you use PS, Lightroom or Capture One.

Overall, we had a great day of shooting at C.O.P. and I really enjoyed shooting with the Pentax 645D.

You can check out the behind the scenes video:
Attached Images
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PENTAX 645D  Photo       
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