Originally posted by BrianR It may be just me, but I think an evaluation of your technique and expectations should be in order before laying out cash on more expensive lenses. The 300/4 type of lenses are definitely sharper and more capable than the 50-200mm but they are also more difficult to use - the significant mass increase and longer focal length will be more demanding on your support and technique especially if you're hoping to achieve razor sharp results in low light.
Technique? In regards to how I hold the camera, or how I'm using the settings (eg aperture, shutter speed, WB, EV)? I'm definitely getting better results as I'm learning where the settings need to be. As far as holding the camera, I'm trying to use a tripod when I can, but I hold the camera like my binos and rifles; where I tuck my elbows into my torso and slow down breathing.
My expectations are quite high. I would like to put some of the pictures on canvas and would like the quality to be very good. More importantly, I want to capture what I see, and have pictures look as close as possible to the scene as it was when I saw it. I'm lucky enough to have a job where I'm in the woods, coast, city, generally all over California at all different times of the day and I also want to document some of what I see.
I'm definitely starting to consider how much money I want to lay out. I already dropped my 18-55 and broke the focus, manual and auto doesn't work. I don't want to do that with expensive glass. I'm generally hard on my equipment; I have swarovski binos, expensive archery equipment and what i've noticed is when I cheap out on things they break, and better equipment lasts.