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But for fixed-lens cameras, that's only half of the story, and lens speed plays a crucial role when considering low light performance. Smaller-sensor cameras such as the Olympus XZ-1 and Fujifilm X10 sport lenses which are rather faster than the G1 X's, by a stop or more at wideangle and two stops at telephoto. This means that, under any given lighting, you can always use lower ISOs with these cameras. This will go some way to offsetting the G1 X's larger-sensor advantage - especially at telephoto.