TTArtisan released an intriguing 10mm F2.0 for APS-C systems. It's manual focus and manual aperture but it's 10mm F2.0 so there's that. Because there are no electronics, Canon ignores it as if it does not exist and so it's available for the RF mount.
Unfortunately, it has a fair amount of tangential astigmatism which makes it unsuitable for astrophotography, but for a 10mm lens even on APS-C you in most cases can live without autofocus, so it's a useful lens, even if you only use it for terrestrial photography. Keep in mind that this lens is incredibly inexpensive for a mind-boggling low price of $159.00 – so it's hard to go wrong with that. If you read about an optical flaw, remember .. $159.
This lens’s mid-frame and corner sharpness, at wider apertures is weak, but it is very sharp in the center right from f/2 and sharp everywhere at f/8 or smaller apertures. Most of this lens’s applications do require stopping down to f/8 or f/11 anyway, where the lens sharpens up everywhere in the frame. The coma issue fails this lens in the only application that requires sharpness wide open to the edges and corners, astrophotography. You can still use this lens for astrophotography, as it has good control over the worst type of coma, just put the most important part of the sky in the center of the frame. On the other hand, its price and sharpness, stopped down to f/8, together with its gorgeous sunstars, makes it one of the most (if not the most) affordable and best value for money ultra wide angle lenses available for APS-C.
이하 번역
TTArtisan은 APS-C 시스템용 흥미로운 10mm F2.0 렌즈를 출시했습니다. 수동 초점과 수동 조리개이고 10mm F2.0입니다. 전자 접점 이 없기 때문에 캐논은 존재하지 않는 것처럼 무시하고 RF 마운트에 사용할 수 있습니다.
유감스럽게도, 이 렌즈는 비점수차가 꽤 있어서 천체 사진 촬영에 적합하지 않지만, APS-C에서도 10mm 렌즈라면 대부분 자동 초점 사용할 수 있기 때문에 (피사계심도가 깊기때문에 무한대에 놓고 조리개를 조금만 조아서 찍으면 팬포커스가 가능합니다.) 지상 촬영에만 사용하더라도 유용한 렌즈입니다. 이 렌즈는 159달러라는 놀라운 낮은 가격에 비해 엄청나게 저렴하다는 것을 명심하세요. 만약 광학 결함에 대해 읽는다면, 159달러를 기억하세요.
RF마운트가 출시되었네요!
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