Viewfinder: Magnification: 0.75X good. Accuracy: 99%, excellent. AF Test: (EV/seconds). From EV 12 (extremely bright light level) to EV 7 (medium brightness level) AF speeds take .42 sec. From EV 6 down to EV 3 (low light level), .54 sec to .63 sec. At EV 2 (very low light level), .71 sec. At EV 1 and EV 0, .77 sec. Frame Rate: (drive mode/FPS) Cl mode: 2 frames per second, frame rate average. Ch mode: 5.4 frames per second, frame rate average. Cs mode: 1 frame per second, frame rate average. Shutter Accuracy: Extremely accurate and consistent, within .03 stops at all shutter speeds, from 30 sec. to 1/8000. Sound Level: Both average and peak noise levels rated extremely quiet in all drive modes.