Review on 📸 Samyang SYIO18AF-E AF 18mm F2.8 Wide Angle Auto Focus Full Frame Lens for Sony E Mount in Black by Ryan Brunson

This lens offers good value for money, although there are many compromises. It is not weatherproof and looks very plastic. However, this allows it to be very small and light. Image quality is very good, resolution is better at f4 or faster than my a7 III. The IQ at f/2.8 is very sharp in the center, but the field's slight curvature means the corners won't match flat test charts or the "brick wall" test (although it will be fine and crisp for most applications ). I personally prefer field curvature for landscapes because all equally distant objects are sharp. Distortion is low. Vignetting is moderate and doesn't disappear anywhere (probably due to the small size). Chromatic aberration is well controlled but not perfect (not ideal for Astro). The autofocus is fast, accurate but makes slight clicks. TL; DR: great price and sharpness. Ideal for hobbyists/enthusiasts. For professionals: Buy for travel, landscapes, vlogging and even architecture. Don't buy for brick walls, flat spreads or durability.