Medium Format Cameras

A Medium Format Camera uses a sensor bigger than full frame, most often 44 by 33 mm. That is 1452 square millimeters against 864, roughly 1.7 times the area, holding 50 to 100 megapixels. Because the sensor exceeds the 35 mm standard, focal lengths behave shorter, so a 45 mm lens here frames about like a 35 mm on full frame. Each raw file, meaning the unprocessed data straight off the sensor, runs 100 to 200 MB, which changes your computer and your storage as much as your bag.

Against a full frame Mirrorless Camera, the gain is tonal smoothness, resolution and a slightly different rendering of out of focus areas at matched framing. The loss is speed. Reading a huge sensor takes time, so bursts run 2 to 5 frames a second where full frame reaches 20 or more, autofocus locks slower. The lens list is a fraction of the size. DSLR Cameras and Bridge Cameras are not competitors here. The comparison that matters is whether a 45 megapixel full frame body already covers your work.

It earns its place in studio product work, architecture, fashion, commercial portraits and landscape prints past a meter wide. Leaf shutters built into many of its lenses sync with flash up to 1/1000 or 1/2000 second. This lets you overpower midday sun outdoors, and that alone is a real reason to choose the format. Avoid it for sport, wildlife, events and anything handheld in poor light, because a base sensitivity of ISO 64 and unhurried autofocus punish movement. If your pictures end on a screen, no viewer will ever see the difference.

Judge the lens list before the body, since three lenses may be the entire practical system for your subject. Check flash sync speeds and which lenses carry leaf shutters. Confirm your computer copes with the files, because 100 megapixel raws slow every step from import to export. Service is specialist and slow, so ask what a sensor clean and a shutter replacement cost and how many weeks the body will be away. Treat these as studio tools that travel in a hard case, not cameras you sling over a shoulder.