Pentax 645Z : Tests and Reviews

COMPARISON SELECTION (3 selected items max.)
Color response
Sensitivity metamerism index
ISO 17321		 78
 
White balance scales R raw 2.06
G raw 1
B raw 1.61
 
    R sRGB G sRGB B sRGB
Color matrix as defined in ISO standard 17321 R raw 1.87 -0.81 -0.06
G raw -0.16 1.56 -0.4
B raw 0.09 -0.59 1.5
Full Color Sensitivity: Noise covariance ellipses in CIE 1931 Lab color space
Select ISO : 100
(ISO are manufacturer ISO)
Select luminance : 30


Pentax 645Z Review

Pentax 645Z Preview – Pentax’s ‘affordable’ medium-format digital SLR gets an upgrade

 The Pentax 645Z medium-format digital SLR offers a 51.4Mp resolution on a 43.8mm x 32.8mm CMOS sensor that’s 1.7 times bigger than full-frame sensors in 35mm DSLRs.Pentax 645Z Specification – Improved performance and more resolutionPentax caused something of a stir back in 2010 with the release of an ‘affordable’ digital medium format SLR in the shape of the Pentax 645D. Nearly four years on, it’s now been updated with the launch of the new Pentax 645Z, featuring a new 51.4Mp CMOS sensor, as opposed to the 40Mp CCD variety used on the 645D. The physical size of

Pentax 645Z side by side comparisons

Pentax 645Z vs Hasselblad model

Pentax 645Z
Hasselblad H3DII 39
101
75

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Pentax 645Z vs Hasselblad H3DII 39

Pentax 645Z versus rival model with similar score

Pentax 645Z
Pentax K-1
101
96

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Pentax 645Z vs Pentax K-1

Pentax 645Z vs Canon model

Pentax 645Z
Canon EOS R5
101
95

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Pentax 645Z vs Canon EOS R5

Pentax 645Z vs Nikon model

Pentax 645Z
Nikon Z7
101
99

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Pentax 645Z vs Nikon Z7

Pentax 645Z vs Sony model

Pentax 645Z
Sony A7R III
101
100

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Pentax 645Z vs Sony A7R III

Pentax 645Z vs Panasonic model

Pentax 645Z
Panasonic Lumix DC-S1R
101
100

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Pentax 645Z vs Panasonic Lumix DC-S1R

Pentax 645Z vs Red model

Pentax 645Z
Red Epic Dragon
101
101

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Pentax 645Z vs Red Epic Dragon