The other 61-megapixel camera on the market, Sony’s A7R IV, fared slightly better. By ISO 6400, noise in this viewing condition is “obvious.” Switch to the more demanding viewing condition of a digital file enlarged to 100 percent, however, and the fp L is showing some visual noise at base ISO. For larger prints, noise doesn’t become visible until ISO 12,800-a very good result. There was no visible noise to be found at any ISO level at this viewing condition. ![]() The fp L does an excellent job controlling noise in post-card-sized prints. Sharpening was at its strongest at ISO 100. Image Engineering noted that detail capture was “very good” at the lowest ISO but just “decent” by the time you reach the middle ISO values. While they boast greater resolving power, both the Sony a7R IV and A1 lose it faster than the Sigma as you increase ISO. At ISO 800, 79 percent and 77 percent at ISO 1600. At ISO 400, it’s still resolving 81 percent of its sensor’s theoretical maximum. While it’s not at the top of the pile, the Sigma fp L retains a fair amount of resolving power as you increase ISO. That places the fp L behind other high-res full frames, like the 50-megapixel Sony A1 (96 percent) or the 61-megapixel a7R Mark IV (94 percent) and the 47-megapixel Panasonic’s S1R (96 percent). ![]() And so it is with the Sigma fp L, which could resolve 81 percent of its sensor’s theoretical maximum at ISO 100. In lab tests, it’s not unusual for very high-resolution cameras to show lower resolving power as a percentage of their sensor’s theoretical maximum resolution than cameras with lower megapixel sensors. ![]() The Sigma fp L: Plenty of Pixels But What About the Resolving Power? You can save camera settings and load them onto other fp Ls, the better for multi-camera shoots. Like the original fp, the fp L has two user interfaces-one for still shooting, the other for filmmaking. It supports USB charging while the camera is on and can double as a webcam. Somewhat uniquely, there’s no mechanical shutter on the camera, just an electronic one.įor filmmaking, the camera can capture CinemaDNG files at 8-,10- and 12-bit color depth. There are 49 autofocusing points, plus face/eye detection and tracking. The camera’s autofocusing system employs both phase and contrast detection. This generous helping of resolution enables a “crop zoom” mode-basically a digital zoom-that can deliver a 5x digital crop during filmmaking that still retains enough resolution for a full HD clip. ![]() Unlike earlier Sigma cameras, the fp L doesn’t use the company’s unique Foveon sensor technology but a conventional Bayer image sensor. This year a follow-up to the original fp full-frame mirrorless was released, the Sigma fp L, hailed it as the world’s “smallest and lightest” 61-megapixel full-frame camera. Sigma’s foray into full-frame mirrorless cameras began at Photokina 2018, where it announced its participation in the L-Mount alliance and sketched out an ambitious plan for new cameras and lenses to support the L-Mount. Rangefinder is a member of the Technical Image Press Association, which has contracted with Image Engineering for detailed lab tests of cameras. Recently they put the Sigma fp L under the proverbial microscope and we’ve distilled the results.
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