Hi Camera Lovers 👋 If you buy a camera through our referral links, you support our site at no cost to you 😉 Full info here.

Pentax 645D Specs and Scores

Storage & Battery
Pentax 645D
Refers to the year this camera was officially made available for sale.
Announcement Date
Refers to the date the manufacturer publicly announced the upcoming release and general specs of this camera.
March 01, 2010
Camera Type
Camera Size
Camera Weight

The Pentax 645D receives a score of 61 out of 100 for its general specifications. Launched in 2010 at a price of $9400, this DSLR camera measures 156 x 117 x 119mm and weighs 1480g (3.26lbs). When comparing the Pentax 645D to current market standards, its specifications show its age, but it still remains a reliable option for photographers. Ultimately, the Pentax 645D’s specifications display its sturdy build and reputable performance, making it a noteworthy choice in the world of DSLR cameras.

Pentax 645D Overview and Optics

The Pentax 645D receives an optics score of 66 out of 100. This camera boasts a 40-megapixel CCD sensor, medium format sensor size, and a Pentax 645AF2 lens mount. The Prime II processor ensures fast image processing, even though the shooting speed is only 1.1 frames per second. The camera’s DXOMARK sensor score is 82, and it has a 4:3 aspect ratio. However, the Pentax 645D lacks image stabilization.

When comparing the Pentax 645D to other cameras in today’s market, its specifications may not stand out as the most impressive. The medium format sensor size and 40-megapixel resolution are noteworthy, but the lack of image stabilization and the slower shooting speed may deter some users. Despite these drawbacks, the Pentax 645D remains a solid choice for those looking for medium format capabilities and the ability to use Pentax 645AF2 lenses.

The higher the number of megapixels, the more detail the cameras sensor can capture.
40 MP
Image Resolution
Image resolution is measured in pixels and megapixels, width by height. The higher the number, the higher its resolution.
7264 x 5440 px
Sensor Type
The camera sensor captures light and records the image. Sensors vary in physical size, the number of pixels, and quality.
Sensor Size
The sensor size contributes to the overall quality as well as the dynamic and tonal range a camera can capture. As a rule of thumb, the more surface there is to read the light, the more information it will capture.
33 x 44 mm
Sensor Format
Refers to the most commonly used sensor sizes.
Medium Format
Frame Rate
The number of sequential frames per second the camera can write to the memory card when shooting in burst or continuous mode.
1.1 fps
Lens Mount
The lens mount will tell you what type of lens range you can fit onto the camera body. Often the same camera company will have different lens ranges for different cameras.
Pentax 645AF2
Image Processor
The image processor in the camera converts the information collected on the sensor for digital storage on the memory card.
Prime II
Aspect Ratio
The aspect ratio refers to the proportional difference between width and height. The most popular aspect ratios are 3:2 and 4:3.
Minimum ISO (Native)
Refers to the lowest native (or 'base') ISO setting. Lower ISO are less sensitive to light but make a cleaner image.
Maximum ISO (Native)
Refers to the highest native (or 'base') ISO setting. Higher ISO is necessary for low-light situations or night photography, but higher ISOs often introduce grain or noise.
Minimum ISO (Expanded)
Expanded (or extended) ISO is a digitally enhanced feature available on some cameras. It allows you to push beyond the native ISO range if necessary.
Maximum ISO (Expanded)
Expanded (or extended) ISO is a digitally enhanced feature available on some cameras. It allows you to push beyond the native ISO range if necessary.
Minimum Shutter Speed
The minimum shutter speed will tell you the longest exposure your camera can take without using an external accessory.
30 s
Maximum Shutter Speed
The maximum shutter speed tells you the length inside 1 second the camera will capture. These can sometimes be extended with accessories such as extra external batteries.
1/ 4000 s
Autofocus Points
Autofocus points show where the camera is focusing graphically as squares or brackets in Live View or on an electronic viewfinder. These points are also used for light meter readings.
In-body Stabilization
In-body Stabilization means the camera has a certain technology embedded that counteracts camera shake.
Viewfinder Type
The viewfinder type is either electronic or optical. Electronic viewfinders will have a small screen in the viewfinder. Optical viewfinders will use prisms and mirrors to look through the lens.
Optical (pentaprism)

Pentax 645D Video Performance

The Pentax 645D lacks video functionality. However, it offers built-in time-lapse capabilities for capturing images at intervals.

Indicates if this camera is capable of recording video.
Time-Lapse Built In
A built in time-lapse mode will allow continuous shooting throughout a prolonged period of time to be compressed into a sped up video.

Pentax 645D Features and Benefits

The Pentax 645D features a score of 54/100 in this section, which calls for a closer look at its specifications. The screen size measures 3 inches, with a resolution of 921,000 dots. However, the camera lacks a touchscreen, flip screen, GPS, and Bluetooth capabilities. It does include WiFi connectivity.

When comparing these specifications to other cameras in the market, the Pentax 645D falls short in some aspects. The absence of a touchscreen, flip screen, and GPS functionality may limit its appeal to certain users. Moreover, the lack of Bluetooth connectivity is a drawback for those seeking seamless device pairing.

Taking these factors into account, the Pentax 645D’s features may not meet the expectations of users seeking a more advanced and versatile camera. Nonetheless, the camera still offers decent performance and WiFi connectivity, making it a suitable choice for specific photography needs.

Built-in Flash
A built-in flash will often be positioned right above the lens. This will automatically pop up when you activate it.
External Flash
External flashes are often connected through a hot shoe at the top of a camera, or a cable at the side of the camera.
GPS features in a camera will include location metadata to each of your photographs.
Weather Sealing
Weather sealing capabilities will give you more confidence when shooting in unfavourable conditions.
Screen Type
Touch Screen
Touchscreen allows you to change camera settings and access menus with a swipe of your finger, instead of using buttons.
Screen Size
Screen Resolution
Screen dots indicate the resolution of the LCD screen by including each sub pixel.
921,000 dots
Flip Screen
A flip screen (or articulating screen) is a second screen which can flip out from the side or top of the camera. This rotating screen allows you more freedom to take photos at different angles.
Live View
Live View feature allows you to see a continuous live video of what is being seen through your lens.
Bluetooth capabilities allow you wireless control of your camera with other external devices.

Pentax 645D Storage and Battery

The Pentax 645D receives a storage and battery score of 35/100. This camera has a single memory card slot, which accepts SD and SDHC cards. In today’s market, many cameras offer dual memory card slots to provide more storage options and data backup. The 645D’s battery life is 800 shots, which is moderate compared to other cameras. The battery type is D-LI90 and unfortunately, USB charging is not available for this camera model.

Considering the storage and battery specifications, the Pentax 645D falls short in today’s competitive camera market. With only one memory card slot and no USB charging capability, this camera lacks the convenience and versatility that modern photographers seek.

Storage and Battery
Storage and Battery
Memory Card
Dual Memory Card Slots
Battery Type
Battery Life
Approximately how long this cameras battery will last measured by how many photographs you will be able to take.
800 shots
USB Charging
Sensor scores tested by DXOMARK
Overall Score
DXOMARK overall sensor score.
Portrait (Color Depth)
As described by DXOMARK 'The Portrait score in our camera sensor reviews defines color depth performance and its unit is a number of bits. A color depth of 22 bits is excellent; differences below 1 bit are barely noticeable.'
24.6 bits
Landscape (Dynamic Range)
As described by DXOMARK 'The Landscape score in our camera sensor tests defines the maximum dynamic range of the camera sensor and its unit is an exposure value (EV). A value of 12 EV is excellent with differences below 0.5 EV usually not noticeable.'
12.6 EVs
Sports (Low-Light ISO)
Described by DXOMARK as 'The maximal value of ISO sensitivity needed to reach a given value of Signal-to-Noise Ratio (SNR). The greater the value, the better'
User Scores
B&H photo video
Spotted a mistake with these camera specs? Please let us know so we can update it!