Originally Posted by majid
Except the Pen was a half-frame camera. Four-thirds (and M4/3) is really quarter-frame, i.e. 110 film equivalent, with all the professional quality we've come to expect from 110 film...
It's doubtful it can compete with the Sigma DP2 or the future Samsung APS-C compact on image quality, specially in low-light.
Sigma DP1/DP2 sensor size: 20.7mm x 13.8mm
Olympus Four Thirds sensor size: 18mm × 13.5mm
Pentax/Samsung APS-c sensor size: 23.4mm x 15.6mm
OMG the sigma DP2 sensor is SOOOO much bigger than the 4/3rds one, a whole 2.7mm in length (due to the 3:2 ratio instead of 4/3rds 4:3 ratio) and a whopping .3mm in width.
An Olympus E-3 with it's 2 years old 4/3rds panasonic sensor would spank a sigma DP2 in low light. The foveon sensor can be woeful at high ISO - color splodges, casts and massive undersaturation.
From my E-3, iso 1250 + pushed almost a stop (iso 2000ish equiv) in post:
Now thats a 2 year old sensor from Olympus/panasonic, and the new M4/3rds or Digital Pen will have a new and improved version of it.
Why exactly do you think it wouldn't compete with the sigma or the Samsung (had to laugh at that one) in image quality? My Olympus E-systems DSLRs compete with my full frame Canon 5d, and in some areas surpass it.