I have finally saved up enough money to purchase a professional quality lens. It’s the Canon 70-200mm F4L USM lens and while it’s the cheapest of the Canon “L” series lenses, it’s also one of the best. I will now be able to use it to photograph small children or sports [which would be easier than children, I think] since the focusing mechanism on this lens is extremely fast. I haven’t had a chance to take it out for a full test since I just got it yesterday, but I have learned a few things.
First, I learned that my old Tamron 28-200 must have been flawed in some way because the 200mm view that I see through my new lens is much bigger than the 200mm view that my old lens gave me. I think it did not go all the way to 200 and may have stopped at 180 or so. Second, there is a switch on the lens that does something cool. If your focusing objects are 3m [~10ft] away or more, you can set your focal range to 3m – infinity and the focusing speed will be lightning fast. If your objects are closer, you can move the switch back to 1.2m – infinity and the speed will only be extremely fast [still very fast, but there’s a noticable difference between modes].
So, I have to find a way to go out and really put the lens through its paces.