This is the first digital medium format camera I have owned. I have progressed in sensor size starting from sub APS-C Sony R1 to and APC-S camera and I still onwn a full frame Sony Alpha 850. I have been through many lenses in my searcrch for image quality. My past film experience saw me using a Mamiya Press (6cm x 9cm), 6x6 TLR and 35mm.
There is some of talk about high end FF digital cameras such as the Nikon D800 equalling the Pentax 645d. There is some talk of the Sigma Merrill sensor rivalling the Pentax 645D. I own a Sigma DP2Merrill and it prodces superb resuts in the right conditions.
The Sigma Merril and the Sony A850 are no match for the medium format Pentax.
At base ISO of 200 the images are smooth with a buttery ''grain'' that is only visible on pixel peeping.
HINT - the lower ISO of 100 is a little too slow fopr the sesnor size and you will either under expose of end up with camera shake. Reserve 100 for tripod use only.
The definition and dynamic range on the Pentax are a league above the Sigma and Sony. I am using legacy lenses - Penta 645 A 75mm and 35mm and have Pentax 67 55mm and 135macro lenses (with adapter). I am awaiting delivery of the 645 150 and 300mm lenses.
The lenses arre all gems. They are really quite cheap in comparison to FF lense,s so unless autofocus is an absolute requirement the camera sits in legacy lens Nirvanah land.
Using the Pentax makes me feel all my previous cameras have been toys. The ergonomics are superb.The camera seems like it has been designed by photographers.
ALthough the camera is larger than my Sony it is comfortable to carry and the lighter lenses do not add much weight.
The camera is designed to take and use legacy lenses with ease. The 645A lenses work beuatifully only missing out on autofocus (which I always disable if present on my Sony line up as I hate autofocus).
The camera is versatile and highly configurable and will lend itself to MANY genres - not just landscapes. Its a popular misconception that this is a specialist landscape camera. It is not.
Pentax have done something big with this camera and deserve many sales. There is a lot of misunderstanding out there about medium format digital, written by those who would have you buy a Nikon D800 instead of medium format alternatives. Dont listen to them. Save yourself some money (on lenses) and get the Pentax 645D. Maybe the Leica S2 has a marginal edge but at 3 times the price ???????
The Future Shall Make Fools of All of Us
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