Lo so, è un confronto quasi assurdo ma ho voluto testare 10 anni di evoluzione tecnologica e vedere i risultati così ho preso la Olympus E-5 e la Olympus E-M5 mark 2, impostato per entrambe il filtro anti rumore su OFF, lasciato tutti a parametri a zero e scattato alle varie sensibilità disponibili, la E-M5 2 avrebbe ancora a disposizione i 12.400 e i 25.000 ISO ma mi sono fermato fino a 6400 che erano il massimo disponibile per le E-5.
Ecco i risultati
ISO 100 E-5 + CROP
ISO 200 E-5 + CROP
ISO 200 E-M5 2 + CROP
ISO 400 E-5 + CROP
ISO 400 E-M5 2 + CROP
ISO 800 E-5 + CROP
ISO 800 E-M5 2 + CROP
ISO 1600 E-5 + CROP
ISO 1600 E-M5 2 + CROP
ISO 3200 E-5 + CROP
ISO 3200 E-M5 2 + CROP
ISO 6400 E-5 + CROP
ISO 6400 E-M5 2 + CROP
The official figures for DxO sensitivity mark gives ISO 896 for the e-M5 and ISO 519 for the e-5. Looking at ISO 800 pictures I was expecting to see the most pronounced difference there, but I'm not convinced it was noticeable yet. The difference definitely dies show up at ISO 6400. For me the main issue is when does the auto-focus stop being accurate.
RispondiEliminaThanks to the smaller number of pixels, the E-5 managed the noise fairly well. I remember an interview in which Olympus declared that 12 mega pixels were the maximum for their sensor and that they would not exceed them. Marketing unfortunately forced it to do so. I always regret a 12 mega pixel sensor with Sony technology and Olympus processor for the new cameras, it would have been exceptional.
RispondiElimina