Cmos with a primary color filter size.
Pentax 645 sensor size.
Comparison of pentax 645z 51 4mp and pentax 645d 40mp on sensor size 55mm diagonals pixel pitch pixel density and more.
43 8 x 32 8 mm lens.
In fact the pentax 645 is still in production today as a 50mp fixed back medium format digital camera.
By contrast the pentax 645 resembles other medium format cameras by makers such as mamiya and bronica which tend to be cube shaped.
We took the 645d for a few spins around town.
Generally the bigger and newer the sensor pixel pitch and photosite area and the smaller the pixel density the better the camera.
Though big and pricey the pentax 645d is surprisingly nimble and makes amazing pictures.
Hassleblad s and early mamiya s bronica s yashicamat s were 6cm x 6cm.
More on that later.
The mamiya rb67 and pentax 645 were promoted on the basis that they were a better use of film for non square prints especially 8x10.
These cameras build on the pentax slr design experience.
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.
It is approximately the same size and shape as the earlier film models and the lens mount accepts older manual and auto focus lenses.
Pentax 645a f2 645a f and 645a mount lenses compatible.
The shape of the pentax 67 is broadly similar to a 35 mm slr camera.
It features a 40 megapixel ccd sensor manufactured by kodak the 7264 5440 pixel sensor measures 44 mm 33 mm which is less than 63 the size of a 6 4 5 cm film image but over 168.
Pentax 645 bayonet medium format size sensor 645d summary.
These numbers are important in terms of assessing the overall quality of a digital camera.
Because the original pentax 645 was a film camera taking pictures of about that size.
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.
156 mm w x 117 mm h x 123 mm d excluding protrusions weight.
1470 g body only.
1550 g including dedicated battery and an sd memory card approx.
