There is really no comparison here. The Sigma is again better than the 50mm F/1.8. It is sharper, has less distortion, and less CA. There is literally not one thing about the Canon 50mm F/1.8 that I find to be superior to the Sigma. Compared Wide Open at F/1.4 and F/1.8 In designing the lens with a large 85.4mm diameter, and placing the widest elements within the front group, greater peripheral brightness is more easily attained when working with larger apertures. This design also lends itself to minimizing vignetting throughout the aperture range for greater clarity and detail across the image frame. Super Multi-Layer Coating The Nikon Z 50mm f1.8S is a very good standard prime lens for owners of Z-series mirrorless bodies: its optical performance is right up there with the much heavier and more expensive Zeiss 55mm f1.4 Otus including longitudinal color aberrations – which is no small feat. The size and weight of the Z Nikkor makes it a much better match for the compact Z-series bodies it’s designed for than the Sigma Art (plus FTZ adapter) although it is not the smallest lens itself. The Z-Nikkor also focuses fast and reliably and is sealed thoroughly – an important feature that is missing on the Sigma Art. And finally the lens produces quite pleasing Bokeh that’s not far behind the rendering of the Sigma Art lenses and to me, actually surpasses Nikon’s own 50mm f1.4G. This overall performance deserves a Highly Recommended! For me, the Sigma looks a tad sharper again. The Canon has a little bit of a “haze” going on. But still looks pretty good. The Test There’s no shortage of 50mm lenses on the market, and many camera and lens companies actually offer a choice of apertures too. The f1.8 versions are definitely worth considering: they are smaller, lighter, cheaper, less obtrusive and often deliver similar – or even superior – image quality than their bigger brothers. The loss of 2/3 of a stop may not be as relevant as the marketing literature wants you to believe. But if you absolutely want or need f1.4 (or brighter) then you have the following alternatives with autofocus:

Sigma 50mm f/1.4 DG HSM Art Review - More Image Samples Sigma 50mm f/1.4 DG HSM Art Review - More Image Samples

Crucially the Nikkor 50mm f1.4G is cheaper than the Sigma 50mm Art, so like Canon’s EF 50mm f1.4 below, it’s a case of weighing-up whether you can afford to pay the extra for the Art as well as being happy to carry it around. If you can afford the extra price and don’t mind the size, the the Sigma Art is the way forward. But if your budget – or size desires – drive you towards the Nikkor 50mm f1.4G, it’s still a fine lens for the money. The EF 50mm f1.4 USM is Canon’s mid-range option out of a trio of 50mm lenses. Many Canon owners choose it as a step-up over the budget EF 50mm f1.8 II without investing the considerable cost in the flagship EF 50mm, but now the Sigma 50mm Art offers something in-between the mid-range and top-end Canon options in terms of price. As for the EF version of the 50mm 1.2, I cannot help but feel it is beginning to show its age. It is inferior to both the RF lens and the Sigma in almost every way, yet costs more than the latter.Above from left to right: Nikon Z 50mm f1.8 S, Sigma 50mm f1.4 Art, Zeiss Otus 55mm f1.4 (Sigma and Zeiss in Nikon F-mount version) Auto focus: all the lenses in this comparison except for the Zeiss have a built-in AF drive. Manual-focus override is by simply turning the focus ring. The Sigma, Zeiss, Canon and F-Nikkor have a direct linear mechanical coupling between the focus ring and the focus action. They also offer the distance and dof markings that normally come with lenses designed for DSLRs. The focus ring on the lenses designed for mirrorless camera bodies operate as focus-by-wire with no distance or dof markings. The Sony has a linear gearing while the Z-Nikkor has non-linear gearing which makes smooth focus pulling almost impossible for videographers. [+] Put simply, the Canon 50mm F/1.8 is sort of a clunker. It’s AF is loud and screechy, and as mentioned above, the manual focus is a real pain. Whereas the Sigma and EF lenses are mechanical in nature, the RF lens employs focus-by-wire which uses a motor to drive the manual focus. Benefits of this mechanism include being able to vary the ring’s rotation speed/sensitivity and customise the direction of the ring.

50mm F1.4 DG DN | Art | Lenses | SIGMA Corporation

Khoảng cách lấy nét tối thiểu 0.4m, ngắn hơn chút xíu so với các ống kính 50mm thông tường (0.45m), cải thiện độ phóng đại tối đa đôi chút .But there are other 50/1.4 lenses to be had. So does the performance of the Sigma 50mm f1.4 ART match the corresponding mark-up in price, and what if you’re considering the Zeiss Otus, the most expensive ‘standard’ lens on the market? Let me go through all alternatives step-by-step.

Sigma 50mm f/1.4 DG HSM Art Cho Canon - Mayanh24h Ống Kính Sigma 50mm f/1.4 DG HSM Art Cho Canon - Mayanh24h

Sigma’s service can change the mount of the lens between Nikon, Canon, Sony, Sigma, and L-mount (at a cost). This is a unique feature that no other manufacturer offers. [++]Lớp tráng phủ Super Multi-Layer Coating giúp giảm thiểu hiện tượng loé sáng (flare), đảm bảo vẫn giữ được độ tương phản cao trong điều kiện ngược sáng. So optically the Sigma is definitely superior, but obviously it’s also larger, heavier and roughly double the price. I’d say it’s worth it if you can afford it and don’t mind accommodating the heft – and if it helps you justify the price, remember another advantage of the Sigma is being able to pay to switch mounts should you swap camera systems in the future, thereby protecting your investment. Oh and it comes with a lens hood too.