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Truong Anh Quan ᠌ photo
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Review on πŸ“· High-Quality Sigma 35mm F1.4 Art DG HSM Lens for Canon, Black, Compact Size (340101) by Truong Anh Quan ᠌

Revainrating 5 out of 5

Excellent product, the best quality.

The fact that the lens did not require any adjustments to be made on the 7D camera was the first thing that pleased the lens. Nevertheless, the 5D Mark III did not agree with the original camera; nonetheless, because in-camera alignment was an option, this did not create a problem. Some users mentioned in passing comments that they noticed the lens did not function in the most optimal way on the 5D Mark III when it came to the side focus points. On my camera, I didn't even notice that this was happening. It is not one of the side points that you should use, but rather a collection of them. Or you can use LiveView for more relaxed shooting. While shooting at f/1.4, the visual resolution on the monitor is around half of what it is when shooting at f/7.1, which is astounding in and of itself. But, this is hardly the most interesting aspect of the situation. A more pressing concern is maintaining consistency across the whole playing field, even down to the four extreme corners of the picture. It is the first time in my life that I have seen a lens that, when stopped down to f/1.4, provides a wonderful uniformity of sharpness throughout the frame, with a slight loss of sharpness in the very corners, but still allowing for the distinction of details, even though they are only slightly rounded. Only, this is not nearly as terrifying as it sounds since no one shoots the plane with aperture settings so wide open; rather, they try to place a background in the background of the shot. This lens has a conditional "disadvantage" in that if you are trying to take a traditional portrait with it, then it is EXTREMELY sharp for these purposes already from f/2.2-2.5. This can be considered a disadvantage in certain circumstances. If you want sharpness but also care about having a shallow depth of field, then you shouldn't be scared to set your aperture to the widest possible setting. While photographing landscapes, it does not really matter what value of aperture you use; it may be f/4, or it could be f/8; in any case, the image resolution will be at its best level possible. When I printed the images in a format measuring 40 cm by 60 cm, the grass in the far corners of the frame has the same level of detail as the grass in the center. There is no need to search for chromatic aberrations; even if you do find something, you should remember that the resolution of your monitor is approximately 100 dpi, whereas the resolution at which you will print will be 254 or 300 dpi. The bokeh of a 35 mm lens is described as "gentle," although it has been somewhat compressed and has taken on a "academic" quality because the manufacturer was first focused on achieving great sharpness. Nevertheless, in comparison to the Art 50/1.4, the bokeh of this lens is considerably more prominent, which leaves me feeling a little downhearted as the owner of both of these lenses.

Pros
  • Perfection in Optical Form
Cons
  • I cannot identify any areas for improvement.