Leica M8 & 50mm Summilux @ F4

Canon 5D Mark II @ 65mm with the 24-105L IS @ F4

Leica M8 & 50mm Summilux @ F8

Canon 5D Mark II @ 65mm with the 24-105L IS @ F8

Leica M8 & 75mm Summilux @ F4

Canon 5D Mark II @ 98mm with the 24-105L IS @ F4

Leica M8 & 75mm Summilux @ F8

Canon 5D Mark II @ 98mm with the 24-105L IS @ F8

CONCLUSIONS

In the 50mm sequences the Canon 5D Mark II (set at 65mm to offset for the crop 1.33x crop on the M8) netted a more detailed image which is not surprising since the Canon 5D Mark II has 2X the megapixels. The 50mm Summilux had more DOF, but that could be a difference in the focus plane. The Canon 5D Mark II was focused via Live View @ 10X magnification - which minimizes focus errors. Whereas the M8 was focused via the viewfinder which introduces a margin of error. Using Photoshop’s bicubic algorithm is not the best option for upsizing; using an application like Genuine Fractals would be an interesting comparison. The 75mm test was a surprise with the detail in those images nearly identical. Probably the only thing proven is the 24-105L’s lack of resolution at the longer focal lengths. On the other the Leica M8 kept pace and if the images were printed at 20x30”, I doubt there would be much difference. There are some differences in exposure because it was overcast and the sun was peeking between the clouds for a couple seconds here and there.