Pentax 645D

Pentax 645D is Pentax's Pro DSLR camera originally launched on March of 2010. The camera features a 40MP, CCD Medium format size sensor with a full resolution of 7264 x 5440.

Pentax introduced the more recent Pentax 645Z (Read Full Comparison) in an effort to replace this camera.

The 645D is rated #10 out of 35 in Pro DSLR cameras and overall #225 out of 1465 for digital cameras in our list. Please check out our Advanced camera filter to see camera ratings based on your personal requirements.

Here is a chart of specific factors used in the rating system.

The Pentax 645D is part of a family of digital cameras. You can see the full list below.

You can look at the 645D from various angles in the gallery here.

Here is a checklist of advantages and drawbacks of the Pentax 645D based on factors that are usually regarded as necessary in a camera.

The Pentax 645D is powered by the Prime II processor. The measurement of the sensor in the Pentax 645D is 44mm x 33mm (Medium format). The 1,452 mm² sensor has the capability to capture 7264 x 5440 pixels using aspect ratios of 4:3.

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The CCD sensor boasts 40 megapixels and includes a native ISO range of 200 - 1600. The ISO can also be increased electronically to a low of 100. RAW format is supported which means that the user has more margin for error.

Pentax made the decision to omit the low pass filter on the Pentax 645D. This will result in more detailed photographs but could introduce moire under some conditions.

The picture below displays the 645D's sensor size compared to other common sizes. The 645D sensor comes with a crop factor of 0.8 and is pointed out in green.

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To get a sense of various aspect ratios, you should refer to the visual below.

Pentax 645D weighs about 3.26 lb (1,480g or 52.21 oz) and the physical size of the camera is 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7"). The weight of average Pro DSLR camera is 1,280g so the Pentax 645D is weightier as compared with other rivals.

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Listed below is a visual of the Pentax 645D besides a soda so you're able to have a sense of its size.

The top view here will highlight the button design on the 645D.

The 645D fits the Pentax 645AF2 mount and has 6 lenses available. Here is a small number of the lenses we have in our collection that will work with the 645D.

ModelVisualizeFocal LengthApertureStabilizedWeight

Pentax smc DA 16-45mm F4 ED AL16-45mmf/4.0 356g

Pentax smc D FA 645 25mm F4 AL IF SDM AW25mmf/4.0 1070g

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HD Pentax-DA645 28-45mm F4.5ED AW SR28-45mmf/4.5 1470g

HD Pentax-D FA645 35mm F3.5 AL IF35mmf/3.5-32.0 570g

Pentax smc D FA 645 55mm F2.8 AL IF SDM AW55mmf/2.8 416g

Pentax HD DFA645 Macro 90mm F2.8 ED AW SR90mmf/2.8 1040g

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The 645D has the following connectivity:

• USB Yes

Digital cameras which have NFC or Bluetooth support can easily be controlled wirelessly with smartphones. You can send photos and usually adjust settings without connecting directly with the camera.

A few apps also stream a Liveview and release the shutter in case you are not near the camera. If the camera contains a HDMI out, it could be hooked up to an external monitor. Many cameras will allow you to recharge the battery pack through the USB socket.

Pentax 645D does not capture video. In case you are searching for a camera to shoot just photos, it is not an issue.

Pentax 645D comes with weather proofing making it a excellent choice to use for tough places. This is especially useful when you are not sure about the conditions you may encounter for outdoor photography.

The Pentax 645D features a 3" fixed screen having a resolution of 921k dots.

Unfortunately the screen is not a touch screen. The 645D also has a Top LCD display so it’s possible to instantly look at the camera's settings.

Photography Glossary

The ViewFinder details regarding Pentax 645D are as follows:

• ViewFinder Optical (pentaprism)
• ViewFinder Coverage 98 percent
• ViewFinder Magnification 0.85x

In those bright outdoor conditions that make the camera displays washed out and hard to view, viewfinders can be rather valuable.

Pentax 645D has the capability to shoot continuously at 1.0 frames per second. The highest shutter speed is 1/4000s.

Pentax 645D has got external flash support but does not have integrated flash. The highest flash sync speed is 1/125s.

Pentax 645D has got both Phase Detect Autofocus and Contrast Based Autofocus. Phase Detection focusing is more quicker and precise as compared with Contrast Based focusing.

The AF system features 11 focus points to pick from. Pentax 645D comes with manual focusing if required for low light situations or you want more accurate focusing control.

The battery life (D-LI90) for the Pentax 645D is built to last for 800 photos based on the CIPA standards making it lesser when compared with its competition. The average Pro DSLR camera battery life is 2438. Nikon D3X offers the best (4400) battery life for this type of cameras.

Below is a list of Pro DSLR cameras that have the highest battery life:

ModelVisualizeBattery LifeRAWNFCBluetooth

Nikon D3X
645D vs D3X4400 yesnono

Nikon D3
645D vs D34300 yesnono

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Nikon D3S
645D vs D3S4200 yesnono

Nikon D5
645D vs D53780 yesnono

Nikon D6
645D vs D63580 yesnoyes

The following illustration provides a summary of the Pentax 645D for varying types of photography. To view more, visit the specific paragraph below.

The Pentax 645D receives a points total of 77 which is very high, and means the camera is a outstanding choice for portraits. Taking portrait images favors greatly towards sensor resolution, RAW support and flexibility to use external lighting.

Coming in at a moderate rating of 58, the Pentax 645D is reasonably adequate for street photography. A very good street photography camera features a fine balance of picture quality and portability.

A nice sports photography score of 63 indicates the Pentax 645D is a good pick for shooting sports. A camera needs fantastic autofocus and fast continuous shooting for sports photography.

Size is very crucial when getting a travel camera. Overall, the Pentax 645D gets a decent 55 as a travel camera which is relatively acceptable to take with you on your vacations.

For anyone planning to purchase a digital camera for landscape photography, the most significant factor will be image quality. The Pentax 645D at it's nice grade of 72 as a landscape camera is a respectable pick amongst it's rivals.

A camera for vlogging should really offer a articulating screen, mic input and ideally image stabilization. Taking all things in to account, the Pentax 645D is not acceptable as a vlog camera as it gets a really bad score of 9.

If you are interested in replacements to the 645D, below is a selection of the top rated cameras which fall in to the class of Pro DSLR.

The line chart underneath shows you a summary of the 645D compared to it's highest scored competitors mentioned above.

These are various other cameras you might consider as alternatives. To look at a comprehensive comparison, simply click the "compare" link.