

Though the E-M10 IV’s AF system locks focus quickly and accurately on static subjects, its performance is less reliable when it’s trying to track a moving subject.Be sure to carry an extra battery for longer outings. At just 360 shots per charge, the E-M10 IV’s battery life is notably shorter than what you get from our picks by Fujifilm and Sony (580 and 520 shots, respectively). But given the complexity of cameras, as well as photographers’ demands for ever-greater control over their cameras, mirrorless cameras will likely never rid themselves of complex menu systems. The E-M10 IV’s menu system, like most modern camera menus, is annoyingly complicated.Weather sealing: A sunshower or some light rain shouldn’t interrupt a good day of shooting or cause damage to your camera.Fast, reliable autofocus: Capturing a sharp photo when you want it, and being able to maintain focus on a subject as it moves throughout the frame, is essential.Second card slot: Whether you want instant backup of your shots, the ability to separate your video and stills storage, or simply the peace of mind that comes from having another card already there when you need it, a second slot is useful.


Fast burst-shooting rate: Fast-moving subjects are often best captured in a burst of images.Tilting or rotating screen: You’re likely to want to take a photo from a strange angle eventually.Comfortable grip and ample external controls: It shouldn’t be hard to adapt your shooting to a new situation.High-resolution EVF: An electronic viewfinder that provides a detailed view of your subject makes it easier for you to frame your images and is essential when you’re focusing manually.
