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Apsc sensor vs frame12/18/2023 Less noise in high ISO (limited use underwater, except in dark conditions shooting ambient light).Well-liked compacts include Canon GX-7 Mark III, Olympus TG-6, and the Sony RX100 VII. They are evolving though and some of the recent smart phones have some pretty impressive advancements. Disadvantages of compact cameras are reduced battery life, shutter lag (slow auto-focus), and they often employ lower quality optics than their bigger cousins. There are wet lenses available which help to bridge that gap. But the trade offs are you are stuck with one lens. The advantages of smaller systems still apply with compacts. In the right hands a compact camera can deliver some pretty impressive results. Deciding on whether a compact camera is for you depends on what you want to do with your images, and how much flexibility you want as a photographer. High end models generally incorporate the one-inch camera sensor which measures about 13.2 by 8.8 mm, with a 2.7x crop from full frame. Compact SensorsĬompact cameras have even smaller sensors. Popular cameras that use micro-four-thirds sensors are the Olympus OM-D EM5 Mark III, and the Panasonic GH5. The disadvantage is you are getting less information in your final image, and less dynamic range, so more noise. Using systems like these may help you unlock angles not possible with bigger housings, consequently better access to subjects underwater. So if you were using a micro-four-thirds sensor and shooting with a 20mm wide-angle lens you would get an image as if it was taken with a 40mm lens on full frame, a crop factor of two.Īdditional benefits of using cameras with smaller sensors generally suggests a smaller, lighter camera body and housing, which translates to less weight for travel, and an easier rig to manage in and out of the water. When you use a crop-sensor camera, you are effectively zooming in (cropping) on the full frame. The reason it is called full frame is you are seeing 100% of the image. The focal length of any lens is based on the standard 35mm film format. To help you visualize in real terms what that means see the image below with sensor comparisons overlaid. If you look at the diagram, you’ll see the difference. Imagine the view of a full frame sensor and then zooming in 2 times, that’s the view a micro-four-thirds crop sensor will give you. Micro Four Thirds are even smaller and have a crop factor of 2x when compared with a full frame sensor, and they measure 17mm x 13mm. They both offer the photographer a variety of lenses to choose from, and are generally cheaper and smaller than their full frame siblings. Two examples of cameras with APS-C sensors are the Canon 7D MKII, and the Nikon D500. APS-C sensors also work well with small dome ports. Wide angle lenses like the Tokina 10-17mm fisheye are commonly used by underwater shooters, and are specifically designed to work with the APS-C sensor, as is the Nikon 10.5mm fisheye. The increased depth of field (1.6 x more than full frame) makes these cameras popular with macro photographers. You will often hear photographers say that they are more forgiving than a full frame camera. Cameras with APS-C sensors offer a narrower field of view and have increased depth of field (greater in-focus area) than full frame cameras. Cameras used by full frame shooters underwater include the Canon EOS 1DX MKIII, Canon 5DS, and the Nikon D850.ĪPS-C (or 1.5x cropped sensor, 1.6x for Canon) are popular with underwater photographers. Flaws in poor lenses, dome ports, and poor technique may be glaringly obvious when shooting with an FF system as the files they create contain much more detail. The trade off for using an full frame sensor is that they do need to be stopped down to get the equivalent depth of field that an APS-C sensor offers. Full frame cameras offer the best viewfinders due to a larger mirror. Photographers who regularly go after large pelagic subjects like whales, sharks, or dolphins will enjoy the benefits of a larger sensor. Something to be considered if you want to make large prints. They create larger file sizes in camera, and thus more image detail than their smaller counterparts. They also produce better quality images in low light conditions (high ISO performance). Owing to their larger size, they have more dynamic range than an APS-C sensor. A full frame sensor measures 36 x 24 mm while an APS-C sensor measures 22 x 15mm, so the full frame sensor is effectively 2.6 times larger. Cameras with full frame sensors (also known as FX (Nikon), FF, 35mm, or 1.0x crop) are more suited to wide angle, and available light work.
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