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HIGH ISO TEST Pentax 645Z vs. Sony A7R

Pentax 645Z vs. Sony Alpha 7R 5

The Pentax 645Z have large Medium format sensor and Sony A7r limited to full frame 35.9 x 24 mm size, at ISO 12800 the 645zand Sony A7R image quality is almost same but you will get bigger size.. so you get large printout or feed the client desired megapixel needs…So if you need more

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