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Phase One P40 Plus Specs and Scores

Storage & Battery
Phase One P40 Plus
Phase One
P40 Plus
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.
April 29, 2009
Camera Type
Medium Format
Camera Size
Camera Weight

The Phase One P40 Plus has a score of 54/100, placing it in the medium format category. Announced on April 29, 2009, and released the same year, it was initially priced at $19,500. The camera measures 154 x 128 x 184mm and weighs 1030g (2.27lbs). Despite being over a decade old, the P40 Plus remains a reliable choice for specific photography needs. However, its specifications are no longer competitive in the current market, as newer models have surpassed it in terms of performance and features.

Phase One P40 Plus Overview and Optics

The Phase One P40 Plus receives a score of 71 out of 100 for its optics. This camera features a 40-megapixel CCD sensor, a Phase-One processor, and a Mamiya 645 AF lens mount. Its sensor has a DXOMARK score of 87 and is of medium format size, providing a 4:3 aspect ratio. However, the shooting speed of 2 frames per second and lack of image stabilization may hinder its performance in certain situations.

In the current market, the Phase One P40 Plus holds its own with a respectable resolution and sensor quality. The medium format sensor offers an advantage in capturing detailed images, and the Mamiya 645 AF lens mount allows for compatibility with a range of lenses. Yet, the absence of image stabilization and a relatively slow shooting speed limit its versatility, especially for action photography or low-light situations.

Taking all factors into account, the Phase One P40 Plus presents a solid option for those prioritizing image quality and resolution. The camera’s optics are competitive, but potential buyers should weigh the importance of shooting speed and image stabilization for their specific needs.

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.
6496 x 4872 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.
32.9 x 43.9 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.
2 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.
Mamiya 645 AF
Image Processor
The image processor in the camera converts the information collected on the sensor for digital storage on the memory card.
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.
60 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/ 10000 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)

Phase One P40 Plus Video Performance

The Phase One P40 Plus, unlike most cameras, lacks video capabilities. This camera focuses solely on photography and does not offer any video features.

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.

Phase One P40 Plus Features and Benefits

The Phase One P40 Plus features a score of 14/100. This score reflects the camera’s specifications, which include a 2.2-inch screen with a resolution of 230,400 dots. The camera does not have a touchscreen, flip screen, GPS, or Bluetooth. However, it does include Wi-Fi connectivity.

Comparing these features to current market standards, the P40 Plus falls short in several areas. The screen size and resolution are lower than many modern cameras, and the lack of a touchscreen and flip screen limit its versatility. GPS and Bluetooth are also common features in today’s cameras, which the P40 Plus lacks.

Despite its low feature score, the Phase One P40 Plus still offers Wi-Fi connectivity, which can be useful for photographers who need to transfer images quickly. However, the camera’s other limitations make it a less competitive option in the current market.

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.
230,400 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.

Phase One P40 Plus Storage and Battery

The Phase One P40 Plus receives a storage and battery score of 51/100. This camera has a single memory card slot, accepting only Compact Flash cards. In today’s market, many cameras offer multiple card slots and support for a range of memory card types, which could be an area for improvement for the P40 Plus.

Regarding battery life, the P40 Plus can take 2500 shots per charge with its BP-915 battery. This is a decent number of shots, but the camera lacks USB charging capabilities. Modern cameras often include this feature, making it easier to recharge on-the-go.

To sum up, the P40 Plus has satisfactory storage and battery specifications, but improvements could be made to stay competitive in the current market.

Storage and Battery
Storage and Battery
Memory Card
Compact Flash
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.
2,500 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.'
25.3 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.'
13 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
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