Camera with sensor or film larger than 35mm — typically 6x7, 6x9, or digital medium format. Exceptional resolution, massive bokeh, slower workflows.
On set, you notice the difference immediately: the large-format camera operates by different rules than your usual 35mm system. The sensor or film format is significantly larger — typically 6x7, 6x9, or even more massive with digital medium-format systems like Hasselblad or Phase One. This means not just more pixels, but a fundamentally different optical characteristic. The crop factor is inverted: an 80mm lens behaves like a normal, calm portrait lens, while a 35mm on the same camera exhibits extreme wide-angle behavior.
The practical consequences are substantial. Firstly, depth of field — at the same aperture and subject distance, you get out-of-focus background behavior (bokeh) that is impossible with 35mm. This makes large format a weapon for portraits, product photography, and commercial shots where you want to separate the subject from the space. At the same time, you need more precise focusing: autofocus must work more reliably, as focusing errors are more noticeable. Secondly, resolution — 40, 50, even 100 megapixels are standard. This allows for massive post-production, crop flexibility, and extreme enlargements without quality loss.
But the workflow reality is rougher. File size devours storage and processing time. A tethering session with large format can feel sluggish if your laptop is processing every RAW import. On-set monitoring is slower. The camera itself is heavier — not necessarily the body, but the robust lenses weigh a lot. You need stronger tripods, gimbal systems need recalibration. Batteries drain faster.
Large format works where time is not an opponent: fashion shoots, studio advertising, high-quality documentary. In fast-paced narrative sets (feature film, news), it's used less often — the flexibility and speed of 35mm win out. But if you need a look that cannot be optically compressed, if your client demands massive enlargements or post-production flexibility, large format is your first choice. The investment pays off in image quality.