Hi,
I had fun last night. This is a not very accurate test, but it shows something. Images are slightly sharpened in Photoshop (Adaptive Sharpening % in Sharpener Pro plugin). The real color is produced by the multi-shot back
Nikon D40 with 50mm f1.4, f16, ISO 200 (min), 5942K, CS4 sharp 40%
Contax 645 with 140mm, Aptus 65, f13, ISO 50, CS4 sharp 24%, mirror up
Contax 645 with 140mm, Aptus 65, f13, ISO 50, CS4 sharp 24%, mirror up, Grey Card
Contax 645 with 140mm, Aptus 65, f9.5, ISO 50, CS4 sharp 24%, mirror up
Contax 645 with 140mm, Aptus 65, f9.5, ISO 50, CS4 sharp 24%, mirror up, Grey Card
Contax 645 with 120mm, Sinar 54H, f9.5, ISO 40, 1 shoot, CS4 sharp 24%, shutter triggered from Macbook
Contax 645 with 120mm, Sinar 54H, f9.5, ISO 40, 4 shoot (4 seconds delay), CS4 sharp 24%, shutter triggered from Macbook
Contax 645 with 120mm, Sinar 54H, f9.5, ISO 40, 16 shoot (4 seconds delay), CS4 sharp 48%, shutter triggered from Macbook
Contax 645 with 120mm, Sinar 54H, f9.5, ISO 40, 1 shoot, CS4 sharp 24%, shutter triggered from Macbook, Grey Card