had a chance to bring out my 3rd party wide angle lens and decide to compare my G4 with it attached versus my parent's G5's wide angle lens
to make it more challenging, took the photos
at night, both using their respective stock apps on manual mode at ISO100, 1/4s shutter
My G4 with the attached lens
http://i.imgur.com/i5dxl2S.jpg
...and the G5
http://i.imgur.com/CzQdFeL.jpg
The G4's 16MP resolution gives it the edge in terms of detail at 100% crop and the wider aperture pulls more light.
The G5's wide angle, aside from the obvious convenience of being built in (the clip on lens I used for the G4
is enormous), has way less barrel distortion and a slightly wider angle of view. You can see more of the HDB flats on the left and right edges.
additionally last time when I was in the M1 shop I remarked how the G5 seems to handle chroma noise better than the G4. Seems it may only apply to indoor lighting cos when I shot outdoor night time, the chroma noise on both (at the same ISO) were quite equal.
