📷 Samyang SY16MAF-N 16mm f/2.0 Wide Angle Lens for Nikon (DX) Cameras - Auto Confirm Chip, Aspherical Design Review

This is a good lens for Night/Astro/Aurora but high contrast shots (like daytime sky shots) have a lot of chromatic aberration from f2 to f22 - nowhere. In addition, the focus ring is sensitive to movement. So moving the setting even slightly will give you the same stellar coma you typically see on lenses that don't work well at night (although it's not exactly the case). Blow your focus away on impact, enough to ruin the stars) (stick that focus ring!). CA and manual focus/focus ring…

Despite its size and weight, the main lens is relatively small despite the 77mm filter ring. It's manual focus only, but the aperture ring is set to allow automatic control with Pentax bodies. The picture quality is good, I didn't notice the fisheye effect. The viewing angle is about 90 degrees. It may not be suitable for city night shots due to the lack of autofocus. It's a bit pricey considering the lack of that feature. It's great for video applications and allows you to create predictable…

I bought this lens as a (relatively) cheap attempt to improve the night sky quality over the stock lens on my Sony A200 (Sony f3. 5-5 lens, 6/18-70mm) . Considering the price of this lens, this is a step up in this department. Judging by the cost and results, I'd say this is an intermediate step, but perhaps not a significant one. Attached are 2 photos I took with the same camera and with each lens so you can compare, the first is with the original lens at around 45 seconds exposure, the second