Pentax 645D PDF User Manual
Did you lose or misplace the instruction manual that came with your Pentax 645D? It happens all too easily, but fortunately Pentax makes a soft copy available that you can browse through online, print out, or download (see the pdf file below). It is certainly good practice to carefully familiarize oneself with the many different functionalities and options that the 645D offers, and the official user manual is without doubt an authoritative and comprehensive source of respective information.
That said, the instruction booklet can be a dry read, so that a dedicated camera guide book from a professional photographer that illustrates the camera's core functions in a real life photography context can be a very helpful complement. Yes, getting one of these camera guides (see here at amazon) would involve an additional expense, but if that book helps to exploit the camera's potential to the full, the (small) additional investment may well be worth it.
Also, you might want to check out the video tutorial on the Pentax 645D below.
In any case, the 645D is an advanced imaging tool, whose many features merit serious attention. This DSLR (Digital Single Lens Reflex) camera was announced on March 10th, 2010, which means that, as of today, the camera is 4943 days old (young?). The camera has meanwhile been discontinued and was succeeded by the Pentax 645Z as a replacement in the same line of cameras.
Pentax's operating manual for the 645D
The camera's operating manual is 108 pages long. The pdf version is embedded below. As you browse through, you will hopefully find the information you are looking for. You can also print out a hard copy by right clicking on the manual and then choosing the respective menu option. For convenience, a summary of the key specs of the 645D is included towards the bottom of this webpage.
Don't forget to bookmark this page for future reference (Ctrl-Shift-D on a Windows PC; Cmd-Shift-D on a Mac). Happy browsing!
Click on the button below to download the pdf version of the Pentax 645D manual to your computer. The file will open in a new browser window.
If you prefer to read the user guide in another language, please check the respective availability on Pentax's support site. That site also provides complementary online resources, such as information on the compatibility of various camera accessories or the availability of firmware updates that are not necessarily comprehensively covered in the instruction manual.
Printed, hardcopy versions of the Pentax 645D manual can sometimes be found online. You can check the availability on amazon and ebay via the buttons below.
Video tutorial for the Pentax 645D
Perhaps instead of reading through a manual or operations guide, you might prefer to better familiarize yourself with your 645D by watching a video tutorial. It can notably help to quickly get to know the key functions and to set up your camera according to your particular preferences and needs.
Once again, the Pentax 645D is a sophisticated imaging tool and not exploiting its capabilities to the full would be a pity. Hence, taking the time to study online information material or to read through a well-written camera guide book is highly recommended to make the most of your purchase.
Pentax 645D FAQ
Below are some additional questions and answers concerning some particular features of the 645D.
What is the technology behind the imaging sensor in the Pentax 645D?
The camera has a CCD (Charged Coupled Device) sensor at its core.
Which image processing chip is used in the Pentax 645D to convert the raw signal into an image file and perform noise reduction and image sharpening?
Pentax equipped the 645D with the PRIME II image processor.
What is the ISO sensitivity range of the Pentax 645D?
The camera has a native sensitivity range from ISO 100 to ISO 1600.
What is the life expectancy of the shutter in the Pentax 645D?
Pentax mentions a shutter rating of 50 000 actuations for the 645D. This number represents a Mean Time before Failure, that is an average value. The shutter might fail earlier, or it might last longer. Anyway, in order to exhaust the expected shutter life of the 645D over, say, three years, one would have to take about 50 pictures each and every day.
How do I find the shutter count on my Pentax 645D?
Pentax embeds the number of shutter actuations in image metadata. You can check the number of shots that your 645D has taken up to now by uploading a recent image to the free online shutter count finder app.
Do I need to purchase an external camera trigger to shoot time-lapse sequences with the Pentax 645D?
No, the Pentax 645D has an intervalometer built-in, so that low frequency shooting (for example, flower blooming, sunset, moon rise) can be undertaken without the need to purchase a separate external intervalometer and related software.
What is the fastest shutter speed that can be used with the Pentax 645D for flash photography?
The 645D's flash sync speed is 1/125 sec.
How does the 645D stack up against available alternatives? If you would like to see a side-by-side review with another camera, just make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 1100D vs Pentax 645D
- Canon 1D Mark IV vs Sony A9 II
- Canon 1D X Mark III vs Sony A9 II
- Canon 300D vs Pentax 645D
- Fujifilm X-E3 vs Sony A9 II
- Nikon D4S vs Pentax 645D
- Panasonic FZ1000 II vs Sony A9 II
- Panasonic GM5 vs Pentax 645D
- Panasonic LX100 II vs Pentax 645D
- Panasonic ZS200 vs Sony A9 II
- Pentax 645D vs Sony NEX-5R
- Sony A9 II vs Sony HX80
Core camera specifications
Here is a list of the main features and technical characteristics of the Pentax 645D.
|Camera Model||Pentax 645D|
|Camera Type||Digital single lens reflex|
|Camera Lens||Pentax 645 mount lenses|
|Launch Date||March 2010|
|Launch Price||USD 9 995|
|Sensor Format||Medium Format Sensor|
|Sensor Size||44.0 x 33.0 mm|
|Sensor Area||1 452 mm2|
|Sensor Diagonal||55 mm|
|Sensor Resolution||39.5 Megapixels|
|Image Resolution||7 264 x 5 440 pixels|
|Pixel Pitch||6.06 μm|
|Pixel Density||2.72 MP/cm2|
|Moiré control||no AA filter|
|Movie Capability||no Video|
|ISO Setting||100 - 1 600 ISO|
|Image Processor||PRIME II|
|DXO Sensor Quality (score)||82|
|DXO Color Depth (bits)||24.6|
|DXO Dynamic Range (EV)||12.6|
|DXO Low Light (ISO)||1262|
|Viewfinder Type||Optical viewfinder|
|Viewfinder Field of View||98%|
|Top-Level Screen||Control Panel|
|LCD Size||3.0 inch|
|LCD Resolution||921k dots|
|LCD Attachment||Fixed screen|
|Touch Input||No touchscreen|
|Focus System||Phase-detect AF|
|Manual Focusing Aid||no Peaking Feature|
|Maximum Shutter Speed||1/4000s|
|Continuous Shooting||1.1 shutter flaps/s|
|Shutter Life Expectancy||50 000 actuations|
|Silent Shooting||no E-Shutter|
|Time Lapse Photography||Intervalometer Built-in|
|Fill Flash||no On-Board Flash|
|Storage Medium||SDXC cards|
|Single or Dual Card Slots||Dual card slots|
|UHS card support||no|
|Studio Flash||PC Sync socket|
|USB Connector||USB 2.0|
|HDMI Port||no HDMI|
|Wifi Support||no Wifi|
|Environmental Sealing||Weathersealed body|
|Battery Type||D-LI90 power pack|
|Battery Life (CIPA)||800 shots per charge|
156 x 117 x 119 mm
(6.1 x 4.6 x 4.7 in)
|Camera Weight||1 480 g (52.2 oz)|
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