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Being Digital


Full Frame or APS-C?


BY MICHEL GILBERT & DANIELLE ALARY


M 52


ajor manufacturers try to convince us that size matters, and the best way to achieve utmost quality in our


pictures is to own a full-frame dSLR. Should we believe them? With the advent of more


affordable full-frame (FF) dSLRs – some of them being only a few hundred dollars more than their APS-C counterpart – it becomes more and more tempting to invest in larger sensor cameras. (For those new to the subject, FF and APS-C refer to sensor size. A full frame sensor measures 24mm X 36mm. An APS-C sensor measures 15.6mm X 23.5mm in the case of a Nikon dSLR and 14.9mm X 22.3mm in the case of a Canon dSLR.) So, should you make the move to


FF? The answer may not be what you expect. APS-C sensors have evolved


tremendously and, although they may not be the weapons of choice in all cases, their inherent qualities make them serious contenders in terms of performance and price/quality ratio, especially for underwater photographers. Many people love to show at a


dive site with the latest, the biggest and the fanciest image-making machine.


Magazine


FULL FRAME Advantages


Best high resolution images Better low-light performance Better suited for wide-angle work Larger viewfinder More lens choices Stronger bodies


Disadvantages


FF are more expensive Cameras tend to be larger/heavier Need the best lenses to match sensor performance Depth of field smaller than on APS-C sensors


Need very large dome ports for wide-angle


More sensitive to diffraction Huge files


They chose a camera after


seeing it in the hands of a top pro shooter, rather than carefully studying their own needs before making a commitment. They want a status symbol, and guess what? It may be the wrong tool for the job! The accompanying table


summarizes the plus and minuses of the each type of camera/sensor. As you can tell from the table,


going FF carries a price tag. Cameras are more expensive and housings tend to be pricier, too. To maximize performance on a FF you also need the best lenses.


Above: Nikon D810 (36Mpix),


Sony Alpha 7 R II (42Mpix) and


Canon EOS 5DS R (51Mpix) Right: The


APS-C Nikon D7200 shines in macro-


photography


In the macro world this does not make a lot of difference, since, for example, an APS-C owner most likely shoots the same lens as a FF photographer. In the Nikon world, both use the 60mm or the 105mm Micro Nikkor. Housing ports are similar. In wide-angle photography,


things get a little more interesting. First, you need the top-performing prime (fixed focal length) or zoom lens to maximize image quality on FF. Second, your wide lens needs be coupled with a very large - or, in Donald Trump’s lingo, huuuuuuuge


APS-C Lower price


Smaller/lighter camera bodies Better suited for wide-angle work Increased depth of field Better suited for macro work Less expensive lenses Less sensitive to diffraction


Smaller pixel size


Not as performing as FF in low light Smaller viewfinder


More limited lens choice Not as sturdy as some FF cameras


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