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| Farewell to the DSLR camera |
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| magic:
--- Quote from: radar_macgyver on July 15, 2022, 07:56:21 pm ---My rather old DSLR (Nikon D5100) has a 'live view' mode, but it disables the phase-based autofocus. The amplitude-only autofocus is a lot slower, and prone to hunting. Has this improved with the mirrorless cameras? The smaller body size is appealing, though many Nikon mirrorless bodies are not significantly smaller than their DSLRs. --- End quote --- Look up "dual-pixel / quad-pixel phase-detect AF". In short, on high end MILC, pixels are made in such way that each of them could also technically serve as a PDAF pixel (dunno if all are actually used). The image sensor itself implements the function of SLR's PD sensors and PDAF works in live view mode. Another (older) variation is replacing a regular subset of image pixels with dedicated split PDAF pixels and interpolating over them during image acquisition. |
| radar_macgyver:
Thanks, good to know that the newer mirrorless cameras have decent AF mechanisms. The Quad-pixel stuff is very impressive. Since Nikon's mirrorless series is not F-mount compatible (the lenses I have aren't fancy enough to warrant an adapter), I might make the jump to Canon. I use a Google Pixel 5a, and its camera's autofocus is really good (practically no hunting), even without assistance from a laser rangefinder. Wonder what method they use. |
| nightfire:
Depending on the lenses, there are mechanical Adapters for F-Mount lenses to Z bayonet. This allows for manual adjustment of all parameters, if only some standard lenses have to be carried over for migration and features like AF and aperture adjustment from the camera body are not important. Otherwise: Nikon is making now the break Canon did decades ago whilst transitioning to autofocus-so lots of things are disruptive now. |
| mawyatt:
If one doesn't have a previous lens bias, then Sony might be worth considering. They are the source of the better image sensors available for consumer cameras, Nikon uses some Sony sensors in certain models, and has been for some time now. As much as I like Nikon they were late to the mirrorless game, but we've been using Nikon for many decades now and have many Nikon or Nikon compatible lenses, so would be more expensive to switch to Sony now, so we'll stay with Nikon. Earlier the dedicated autofocus sensor was much more sensitive than the autofocus sensors integrated within the image capture sensor on mirrorless cameras, and this was the main reason for the mirrorless poor low light focus performance, however that has now improved. Today all the cameras are so good and the algorithms for just "pointing and shooting" are almost as good as if someone knowledgable sets up everything before hand. Have a former colleague that is sort of a camera nut, and he has a bunch of the latest Nikon Z cameras (a D850 also) & lenses, yet he says his wife almost always gets equal or better images with her iPhone!!! The new lenses are also getting much smaller & lighter, especially the new longer reach types that rely on Fresnel elements (have a Fresnel type 300mm that's about same size as regular 105mm and lighter)!! With the post image capture lens corrections capability the lens designers can focus (pun intended) on getting a sharp image at the corners without worrying about vignetting, or some aberrations and keeping the number of elements down which reduces weight. Anyway, we are seeing a significant shift taking place with consumer cameras, although most of which is in the Smartphones, but as in many things the semiconductor technology is behind much of this. Best. |
| Kjelt:
If this would be made around $2000 I think companies would have a winner. |
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