Summary: I have used this model lens before on my a1 but this one has a foggy overlay on it when you upload from the camera , even after placing it in a dry lock air tight container with silicone drying bags .
Summary: This lens is a nice tele for beginners. It takes fairly crisp images with proper light. There is no stabilization so low light situations, (even evenings or shaded areas) will require a tripod. The lens is quite heavy but that is to be expected. The build quality is a tad suspect. There is actually several small specs of dust on the inside of the lens.
Summary: This lens has sharper image quality and less aberrations than the Canon EF 75-300 III. White edges have almost no purple fringing. the image has significantly better contrast also. If you want to upgrade from the Canon 75-300 III and don't absolutely need image stabilizer than this lens is it. A used one is about the same price as a used Canon 75-300. The auto focus is much more accurate also. Cons no lens hood mount.
Summary: This lense is a great compliment to the standard lenses available for most brands of camera's. The picturee quality is fine. I also have an 18-135 lense as the base model with image stabilization. The only thing missing in this 100-300 lense is the image stabilization, but if you use a tripod or can stabilize the camera for long distance shots, it is not an issue. I am very pleased and would recommend this lense to both ametuer and professional alike.
Not the greatest photos but still a great value to experiment with.
1 September 2012
Summary: This is a good lens to mess around with using an adapter. I bought an adapter from Amazon for my Sony Alpha NEX 3 to use with this lens. Because you have no stabilizer in the lens it is very difficult to get a clear shot, as well as the focal range difference from the back of the lens to the sensor. Still, it's a fun lens especially for the price. Between the lens and the adapter I paid less than $60. Not bad at all.
Summary: This is so easy to operate and the quality of the shot is more than I thought it would be. It is heavier than I thought it would be but, nothing to keep you from buying this lens! Great lens at a great price.
Summary: If you are like me a lens over 210mm was never needed, until I tried this 100 - 300mm lens and saw for myself what I was losing out on. For long range nature photos on a tripod or in a steady hand this lens takes terrific photos. Now I do not have to sneek that close to game to get the best shot. I use all my tracking skills through out the year and always make the perfect shot.
Summary: This may be an older lens, and it may not have Image Stabilization, but for the money it is an excellent choice for a long zoom. With excellent Image Quality, Full Time Manual and pretty sold construction, it will work with cropped sensors or full ones.