I find manual focusing a bit of a problem when its dark, it looks ok on the live view but when i get home its fuzzy see example below, any tips?
1. Make sure manual focus is selected on your lens.
2. Use a tripod on a firm base. beware on beaches, the legs will sink in to sand and allow the camera to move. I take 3 pieces of wood with a routed recess for the tripod feet to sit in with me.
3. Lowest ISO to reduce noise.
4. Know the hyperfocal distance and the minimum sharp distance for the aperture you intend to shoot at. For example, with the 7D at 67mm in the above image, the hyperfocal distance is just over 11 metres at f16 anything over 5.5 metres should be in focus if you set the focus distance to 11 metres.
5. Have a torch and a contrasty target with you. Pace out the hyperfocal distance from your tripod and set the target down on the floor. illuminate it with the torch. or alternatively, if you have a window on the side of your lens showing focal distance, check how accurate it is in daylight, then you can set it just beyond the hyperfocal distance using a torch. This will ensure you image is sharp from infinity back to ~ half the distance you set on the lens.
6. Manually (live view if you want) focus on the target and leave the focus set at that. compose your shot and release th trigger.
