I consider this lens to be average to good, and not a perfect super sharp lens as it is described in various foreign and Greek reviews.

So, everything comes down to the price. For this price, it is simply good. However, if you have specific requirements for image quality, it is better to choose something else.

First of all, I should mention that it is a lens for shooting in sufficient lighting. If the lighting is low, as is the case in many indoor spaces even during the day, and you want to shoot from 12mm handheld, do not have high expectations for image quality. So, the issue of how it is used also arises. For night photography, we simply don't discuss it.

Let's move on to the topic of sharpness that everyone talks about. At 10mm, we have very good sharpness in the center of the image, but the edges are so soft that it makes you think about cropping, especially for landscape shots in the forest. There is also very noticeable chromatic aberration, especially in the representation of whites or grays. Of course, this applies to my case where my camera did not have the lens data for correcting peripheral illumination, as it was released before 2014 when this lens came out.

Other than that, what I really liked about this lens is the representation of the blue sky in a landscape. Simply amazing.

It is also very lightweight, quiet, with extremely fast focusing and sharpness, as I mentioned before, simply good but definitely much better than kit lenses.

The cheapest wide-angle lens on the market, but only for Canon crop. Lightweight, with extremely fast and accurate autofocus, completely silent and therefore suitable for video. However, the feeling you get when you hold it in your hands is more like a lens made of cheap plastic. It has a plastic mount, although it hasn't caused me any problems so far. Its most serious drawback for me is the fact that it is a bit dark lens. It starts at 10mm with an aperture of 4.5 which quickly becomes 5 at 12mm. Of course, this doesn't create any problems at all for outdoor shots, but for use in less illuminated or dark areas (e.g. indoor spaces, etc.) we should be prepared to make adjustments in terms of speed and ISO. Anyone considering it for astrophotography would be better off forgetting about it and going straight for the Tokina 11-16 or the Samyang 14 with an aperture of 2.8. If astrophotography is not your intention and you are thinking of buying a wide-angle lens, I think this lens is a very honest solution, especially because of its low price. Personally, I bought it to experiment and I'm thinking of keeping it until f/2.8 becomes excessively necessary for me. Good shots!