Wider latitude
can save a borderline picture.
Camera latitude refers to how far you can be from your lens' proper F-stop setting and still produce an acceptable picture.
Film Type
Different types of film have different latitudes. Standard color film can generally be one F-stop underexposed or three over. Black and white film is less forgiving for over-exposures (two F-stops), while slide film only allows a half-stop either way.
Digital Camera
Digital recording technology provides significantly wider latitude than film, capturing the extra highlight and shadow details that photo editing software can restore later.
Film Speed
Generally, the slower the film's ASA number, the less camera latitude you have. Very high-speed films can add several F-stops of leeway in setting your lens. In high-action settings, employing fast film can mean the difference between usable and unusable shots.
Latitude and Flash
Having film or a digital camera with wider latitude can reduce flash "fall off" by helping resolve subjects and background detail farther from the flash.
Photoshopping
Photo software can improve the latitude of your photographs after the fact. Digital originals lend themselves to exposure correction better than film negatives. Film exposure can only be adjusted during processing by under or overdeveloping the film. Film can successfully employ some software processing, but less so than digitally recorded images.
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