This Panasonic GH1 is a Micro FourThirds camera with a large image sensor and interchangeable lenses, which does not require a mirror and instead uses a high- FREE 2-day Shipping: DSLR features in a compact camera Looking for powerful zoom, high-end optics and creative control in a compact digital camera?Panasonic offers a compatible compact external flash, the DMW-FL220, which sells for about $160, with a guide number of 22 but no bounce capability. It can be