What do all Those Letters Mean?
Well, they’re acronyms, and they vary between cameras, but they all essentially mean the same thing. Here’s a little diagram below which demonstrates that these letter mean by brand.
Read more here.
This is Sigma’s answer to the 24-70 f/2.8, and although it’s good, and fast, it’s not quite as good as the Canon or Nikon. It all comes down to how much you want to spend.
If you’re looking to replace your kit lens on your crop sensor camera then this is a good choice. It has a wider aperture, stabilization, and a very fast focus motor. Great price.
This lens is a third party lens for Canon, Nikon, Pentax, and Sony, but it’s still very highly regarded in terms of quality. When you compare prices, it’s hard not to choose this one.
If you’re shooting full frame and you want an ultra-wide lens, or perhaps you want a better quality lens in the 18-24mm range on a crop sensor; this is the lens to go for. 122 degree view.
This lens is for crop sensor cameras only (hence the DC), and it’s for the ultra-wide angle range. Very popular with nightclub photographers, it’s a well liked lens with lots of barrel distortion.
Designed for use with full frame digital cameras, this is a wide angle lens, with a wide aperture, and the 9 Blade diaphragm provides pleasant bokeh. Great quality.
30mm is a great length if you want the 50mm look, on a crop sensor. The aperture is super wide, which will produce a shallow DoF and lots of light. EX stands for Excellence too.
50mm is one of the most popular lengths to shoot at, and when you combine that with the super wide aperture and excellent quality, this lens is a really popular choice.
The reviews speak for themselves really. This is a macro lens for shooting really small stuff, up close. It’s built for full frame cameras, so don’t buy if you shoot on a crop sensor.