The models are similar in appearance, but differ in focal lengths. Manufacturing material - plastic. Average weight. The picture quality is very good. There are only complaints about the distortion of the Tamron AF 17-70mm f2.8, which is present at all focal lengths. Autofocus is both quiet and fast. In general, we can safely recommend it.
I will tell you in detail about them in my video review:
You can familiarize yourself with them in detail in the video review at the end of the article. Here I will briefly describe my impressions.
I think the best option is Sigma 35mm f / 2.0 Art DG DN... The lens has sufficient parameters for any tasks that are posed before a 35mm fixed lens. It's sharp, compact, and f2 is basically enough for anything.
On the lens Sigma 35mm f / 1.4 Art HSM DG I already there was a review for Canon DSLRs. Here we are dealing with the same lens, but with a built-in adapter for mounting on a Sony E-mount. The lens came out elongated, bulky and inconvenient to use on small Sony mirrorless cameras with their characteristic awkward grip. f1.4 is certainly good and the difference in background blur is present relative to the lens at f2. If you want a blurry background, it is much easier, cheaper and more convenient to take a longer focal length.
Version Sigma 35mm f / 1.2 Art DG DN - just a monster. Weight 1090gr is not a joke to you. This is a very heavy and very large lens. But it gives a unique aperture of f35 for 1.2mm. The background blur is very smooth and pleasant. What use for this is up to you.
In terms of detail, they are all very good. The 35mm f / 1.4 lags somewhat behind at the edges, but I would not say that this is critical. Version f1.2 pleasantly surprised me with excellent sharpness across the entire field of the frame already from the open aperture.
Samyang AF 45mm f / 1.8 FE - compact full-frame lens for Sony mirrorless cameras. I have a very positive attitude towards lenses from Samyang. They are good in optical performance and have a reasonable value. Samyang is a Korean brand and they have the widest range of optics for almost any camera. But for modern Sony E-mount cameras, they have a particularly large selection.
In this case, we have a standard lens that would be appropriate to use on both full-frame and crop cameras. In my case, the tests were carried out on bottom of Sony A6400.
External Features
Samyang AF 45mm f / 1.8 FE is made of plastic. It looks beautiful and stylish, feels flimsy and cheap in the hands. Weight and dimensions are very modest. There are no buttons on the body, only an electronic focusing ring.
Focusing
Autofocus is fast enough and almost silent. The front element does not extend or rotate during focusing.
Image quality
At an open aperture of f / 1.8, you can already shoot with confidence. There is some softness in the image when shooting outdoors, but in real conditions this will not be very noticeable. Chromatic aberration will be visible under some conditions when the aperture is open. The lens gets very sharp from f / 2.8 onward. In terms of image quality, he reminded me very much Canon EF 50mm f1.8.
The bokeh is pleasant, with its own unobtrusive character.
Sample photos on Sony A6400 + Samyang AF 45mm f / 1.8 FE:
Total
I recommend it for purchase. It will be a good option for both full frame and crop.
There are many other good lenses in this lineup as well. The only question is in choosing a focal length for your tasks.
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