• Products
  • Store
  • Community
  • Support

645Z

Surprising resolution and rich tones. This is what high image quality truly means.Surprising resolution and rich tones. This is what high image quality truly means.

43.8 x 32.8mm
Unsurpassed power of resolution and natural atmosphere provided by the large CMOS image sensor.

Resolution and depth of expression brought by the size of the imaging surface. This is the reason that medium-format cameras have been chosen for high-end photography that gives the top priority on image quality. The PENTAX 645Z is equipped with a large, 43.8 x 32.8 mm CMOS image sensor. With the size of approximately 1.7-times larger than a 35mm full-frame format, a higher degree of the sharpness and atmosphere of the scene can be captured. Also, because the depth of field is shallow, the blurring effects can be controlled freely. The PENTAX 645Z is all the more effective and expressive to focus on a single point that you want to express for titillating photos.


PENTAX 645Z large CMOS sensor (Actual size)


35mm full-frame format

Overthrow the standards of high quality imaging
51.4 million effective pixels

The effective pixels of PENTAX 645Z are approximately 51.4 million. This number of pixels is an absolute advantage when photographing subjects, such as scenery, that require high resolution. The difference in sharpness and density of details come across clearly even in A3 size prints. Also, because a rich amount of information is included in each shot, when working with RAW images, tone jumping is less likely to occur, letting you boldly change parameters and freely customize the finish without worrying about ruining the image.

Expanding the realm of exposure settings
Max. ISO 204800

The ultra high-sensitivity max. ISO 204800 is made possible by delicate and thorough noise processing through an image processor and image sensor of a high SN ratio. Even at high ISO settings, excellent image quality is possible with reduced noise and outline blurring. Even in the same shooting conditions, the greater freedom for the wider setting of aperture value and shutter speed allows you to express blur and emotion just the way you like.

ISO 6400

ISO 100

Instantly process the high pixel count data of approximately 51.4 million effective pixels
Image processor PRIME III

The PENTAX latest image processor, PRIME III is used. This processor boasts an approx. maximum processing speed that is five times greater than the PRIME II, and instantaneous processing of the large data amounts produced by an approx. 51.4 million effective pixels. This processor also contributes to significantly improved performance, such as a faster Instant Review.

Design concept that brings out the full potential of the lens resolutionAA-filter-free

Although false colors and moire are suppressed, the low pass filter unfortunately reduces sharpness of the overall image. This filter was removed from the image sensor unit as part of the design concept to give first priority to resolution on the PENTAX 645Z. This construction succeeds in bringing out the full potential of the lens and image sensor's resolution. The unsurpassed resolution representation will resolve individual leaves on trees in a landscape shot.

Newly equipped with diffraction and color fringe correctionLens compensation function

The PENTAX 645Z is equipped with full-featured lens correction functionality. Together with distortion and magnification chromatic aberration, peripheral illumination correction and diffraction correction are newly added. Diffraction that occur when stopping down the lens during shooting are effectively corrected on the PENTAX 645Z. Additionally, it is equipped with fringe correction for use in processing RAW images. This camera will support the higher quality finish.

[ Superior image depiction provided by a large and high pixel CMOS image sensor ]

Fine and smooth gradations

The large CMOS image sensor has ample pixel pitch and output a high SN ratio signal even in a high pixel count. Highlight blowout and loss of shadow detail are uncommon on the PENTAX 645Z, and tonal changes are reproduced in the high pixel count areas only. The smooth connection between shadows and colors provides images with more detailed descriptions.

Beautiful blurring and rich three-dimensional feel

The main feature of medium-format cameras can also been seen in their blurring effects. The depth of field is shallow and blurring is smooth. Subjects captured with the aperture at its widest setting appear more three-dimensional than even when seen with the naked eyes. These features make the soft, rich three-dimensional expression and atmosphere that are particular to medium-format cameras possible for a deeper significance in photographs.

Page top