The Pentax 645Z features 51.4MP Full Frame Exmor CMOS Sensor and ISO range 100-204800 on the other hand Pentax 645D features 40MP (7264×5440 pixels) CCD Sensor and ISO range 100-1600, take a look at the Major Specification Below.
Pentax 645Z vs. Pentax 645D Specification Comparison Table.
Megapixel: The Pentax 645Z features more resolution compared to Pentax 645D, so you will get large printouts and you can also re-compose /crop your images after shooting.
Bigger Sensor Size: Pentax 645Z have bit bigger sensor size compared to Pentax 645D, bigger sensors have more light gathering area hence you get better low-light performance, more color depth and increased dynamic range.
Better low light performance – The Pentax 645Z features better low-light range than Pentax 645D, The Pentax 645Z standard ISO range is 100-204800, with the amazing ISO range of Pentax 645Z you get super clean images at low-light situation when compared to its competitors.
Top Continuous shooting speed: Pentax 645Dz features fast shooting speed (3fps vs. 1.1fps) compared to Pentax 645D.
Display: Pentax 645Z features bigger and high resolution display compared to Pentax 645D.
Pentax 645Z features fixed display and 1,037,000 dots on the other hand Pentax 645D have fixed 3.0” display, so we get more flexibility while composing our shot with Pentax 645Z.
High ISO Test Between Pentax 645Z vs. Pentax 645D
Verdict: Pentax 645Z vs. Pentax 645D, the 64Z features excellent core specification when compared to the Pentax 645D… the ISO range of 645D was limited to 1600 so we are unable to get high ISO samples of 645D.
image credit – imagineresource