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The following opinions have been automatically translated with Google Translate.
Cons:Very sensitive manual focus ring, docking station for firmware update
Opinion:Bought to replace the Sigma 10-20 in the switch from Sony a58 to A7II. Used for architecture photos. What I like: solid construction, weight and reasonable size, great sharpness (even at the edges, closing a little), colors. What I like less: in manual focus, the focus ring is very sensitive and moves too easily, the firmware update is only possible with an expensive and difficult-to-find proprietary docking station, difficult to mount filters. The distortion is there but it is quite moderate, much much better than the manual version 2.8 but a little more than the Voigtlander 15 and the Laowa 15, however more than acceptable and totally correctable in Lightroom. Pretty content vignetting (much better than the Voigtlander). Always sharp in the middle, drops slightly at the edges, but stopping a little you always get incomparably better results than the Sigma 10-20. I had doubts about the "variable" quality of the Samyangs, but my copy is great. In general I am very satisfied, For the price paid (390 euros half-new) is a great goal. I don't use autofocus often, but having it at the time is still a great convenience.
Cons:Focus Ring Little "braking", lack of any indication of distances on the barrel, lack of a "bottom-stroke" signal.
Opinion:Purchased to replace the well-known (and already GOOD) manual version, you immediately realize that you are in front of a professional object. The price for CANON is almost double but I think the money is well spent: the optical scheme has been modified and enriched with "glass" Valuable. The appearance is solid, the finishes are of a high standard, the coupling bayonet is perfect (with rubber gasket). The front cap no longer has the rudimentary appearance of the old one and fits perfectly on the lens hood. The yield on the whole frame is very good and was corrected the distortion to "whisker" present on the previous model. The autofocus is very fast and practically silent. In my opinion, the only faults concern the focus ring: 1) on my specimen, it is totally "wild" and does not oppose any resistance to Rotation. It may seem like a merit, but it is not because you can inadvertently change the focus simply by supporting the lens with your left hand. 2) is missing any reference on Distances. In daytime photos This is not a problem, but for astrophotography (where it is in manual because the automatism often does not work properly) know where the infinity would not Spoil. Tried for a few hours in the "real world" I understood better what is wrong: missing a "signal" indicating that they have reached the MAF maximum or minimum. In other words: in the CANON rotating the focus ring you come across a kind of "step" that warns us to have arrived at the extremes of the focing for that Objective. On the samyang, This step is not there: in practice you can rotate the ring infinite times in both directions without warning any signal to have arrived at the Bottom-ladder. If with the autofocus in daylight the thing can be irrelevant, with low light/at night and focuser in manual is rather annoying not knowing what we are doing...
Pros:Lightweight, small, excellent construction, yield up to the corners, improved distortion compared to old, fast AF
Cons:Distortion very contained but CMQ still present
Opinion:After a year in the company of the old model, used mainly for interior and landscape photography, I decided to move to the new version. They finally eliminated the annoying distortion of a whisker, now distorts a little but it is a whole other world, I hope in a suitable profile as soon as possible on camera raw, for the moment in fact adopts automatically that of the premium version with some small Imperfection. The AF is not ring but it is fast and accurate, you feel the noise but really limited. Improved then the other problem of the old version: the surrender. Now it's really great up in the corners (on 5d MKIII). In short a must have!!
The following opinions have been automatically translated with Google Translate.
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