We took the 645d for a few spins around town.
Pentax 645 sensor size.
1550 g including dedicated battery and an sd memory card approx.
Comparison of pentax 645z 51 4mp and pentax 645d 40mp on sensor size 55mm diagonals pixel pitch pixel density and more.
Pentax 645z has a pixel density of 3 53 mp cm.
43 8 x 32 8 mm lens.
Pentax 645a f2 645a f and 645a mount lenses compatible.
By contrast the pentax 645 resembles other medium format cameras by makers such as mamiya and bronica which tend to be cube shaped.
Cmos with a primary color filter size.
The shape of the pentax 67 is broadly similar to a 35 mm slr camera.
Pentax 645 bayonet medium format size sensor 645d summary.
These numbers are important in terms of assessing the overall quality of a digital camera.
In summary the iso performance between a medium format sensor and a full frame sensor is obviously pretty pronounced and for a good reason the larger sensor size does make a difference pentax smc fa 645 45 85mm f 4 5 lens.
The pentax 645 system is versatile and modern with many of the automated features found in todays fancy dslr s yet offers all the manual features of the old rugged film cameras of days gone by.
In fact the pentax 645 is still in production today as a 50mp fixed back medium format digital camera.
It is approximately the same size and shape as the earlier film models and the lens mount accepts older manual and auto focus lenses.
Hassleblad s and early mamiya s bronica s yashicamat s were 6cm x 6cm.
The pentax 645d is a digital single lens reflex camera introduced in 2010.
156 mm w x 117 mm h x 123 mm d excluding protrusions weight.
Though big and pricey the pentax 645d is surprisingly nimble and makes amazing pictures.
Previous models include the pentax 645 and 645n and pentax 6x7 and 67.
These cameras build on the pentax slr design experience.
More on that later.
Generally the bigger and newer the sensor pixel pitch and photosite area and the smaller the pixel density the better the camera.
Because the original pentax 645 was a film camera taking pictures of about that size.
