Summary: I am a lens snob. There, I said it. I began to shun zooms and own and carry only primes, sometimes five at a time. But I just couldn't get rid of my 70-200 f4 IS USM; I needed that reach. Well, I borrowed this lens for an afternoon and immediately fell in love. I've had the 135 f2 for years, and it has become my go-to lens for walking around, especially for shooting festival events.
Excerpt: I bought this as a replacement for my 70-200mm zoom. I used to have a 200mm f2 in the old days and was concerned that I would be disappointed with this lens. Oh, no, it is brilliant and I love it. So crisp and works so well with the extenders.
Pros: Consistent Output, Easily Interchangeable, Fast / accurate auto-focus, Lightweight
Conclusion: This is an exceptional prime lens. The images it produces are outstanding. I also shoot with a 70-200mm II is and I find myself using it more than the zoom lens. It can produce great images hand held but if you can use a tripod or a monopod do so. It's a great lens for the price. If you are shooting action then you should go for the 70-200 mm II is if you are not experienced enough to use a prime lens without image stabilization.
Pros: Fast auto-focus, Superior build quality, Super-sharp images
Excerpt: I purchased this to have a telephoto lens with a tack sharp quality and fast enough for multiple uses including sports, portraits, and landscape. The bokeh is soft and buttery - a phrase you may read often for this lens. Besides the unbelievable components in this lens, the price makes it a "priceless" buy.
Pros: Consistent Output, Fast / accurate auto-focus, Lightweight, Nice Bokeh
Excerpt: I purchased this lens to use for my extreme drag racing photography business. As the cars are running the 1/8 mile at close to 200 miles per hour. My position on the track is critical to capture the money shot images. This lens gives me dead on accurate focus and without having to zoom the lens. The F2.8 is fantastic in low light and dusk situations as well as capturing tack sharp image.
Pros: Consistent Output, Durable, Fast / accurate auto-focus, Strong Construction
Excerpt: I wanted a lens that I could carry in place of my 70-200L 2.8 IS for travel. The 200 2.8 is about half the weight and complement my 24-105l f4 lens. Being a 2.8, I can use my 1.4 and 2x extenders. Miss the IS, but the cost and weight are reasonable.
Pros: Fast / accurate auto-focus, Lightweight, Nice Bokeh