Reviews and Problems with Sigma 20mm F1.8 EX DG ASPHERICAL RF
Showing 1-10 of 203
Guilherme Borges, B&H Photo
28 March 2014
Excerpt: I'd been looking to buy this lens for a couple of years and finally got around to it. I work with video and I needed a fast, wide lens so I could film in poorly lit places and on the streets at night. This lens is fantastic and one of the smartest purchases I ever made. But it goes a little further than I imagined: it also works great for macro (both photo and video).
Pros: Great for Video, Strong Construction, Very good in low light
Summary: Overall its a good lens. auto-focus is pretty crappy sometimes when you're trying to catch something fast. Loud autofocus when its on video mode, but manual focusing is pretty quiet and smooth. Pictures come out clear, get a good wide angle without distortion like a fish-eye lens. Bought over a year ago, used frequently, and still lasting good.
Summary: This is actually my first review, and I feel that this lens is fitting for it. I've only been shooting "professionally" (i.e., for real, actual money) for about a year, which has included shooting second at a number of weddings, and covering several events, portrait sessions, and a couple of concerts/gigs.
Summary: I bought this lens strictly for shooting stars. Good (not great) value for the money. There aren't many wide lenses out there this fast. It works well for stars. I'm able to get 2 more stops of shutter speed compared to my f/2.8 lenses. A big plus in my opinion. On the down side, this lens vignettes badly at anything wider than f/3.5. Not a huge issue when the scene is mostly dark and I typically add vignetting to some degree in post processing.
Summary: I was looking for a good, relatively inexpensive fast lens. I decided to give the Sigma a chance, and I'm glad I did! I was able to make some very nice night time shots that none of my zoom lenses would have ever imaged. This is one of my first prime lenses, and now it has me thinking perhaps I need a larger bag to collect more of these!
Excerpt: Compre la lente para usarla en diafragma 1.8 y solo puedo usarla en 4.0 que es donde me salen las fotos nítidas. Si es un tema de compatibilidad tendrían que haberme explicado al momento de la compra ya que tengo una Alfa 33 y una Alfa 65 que se las compre a ustedes y en ambas me hace el mismo defecto. Aguardo respuesta. Saludos.
Summary: Fantastic lens. At 20mm the f/1.8 is just incredible to be able to be so close up in such low light with really terrific results. I use it almost exclusively for video and the manual focus works incredibly well.