I know there are some knowledgeable camera folks here. as mentioned in my gibberish thread, i bought a used DSLR camera for use with my telescope, because this style camera could be mounted directly onto the telescope. having never used a DSLR, it was suggested to me that i pickup a lens, and just take pictures to help me learn what the functions do. My camera takes Canon EF, and EF-S mount lenses (it is a Canon EOS Rebel T2i 550D, body only). i have googled tutorials until my eyes blurred, and read the manual until the same. what i need is an opinion, rather than flat facts. if i want to learn the various features of my camera, with only one lens (to start), what should i look for?
I have my eye on a: 50-200mm F/3.5-4.5 it is well used, but still works. it is stated to have working auto-focus (with manual, of course). it probably needs a good cleaning. (some lens fungus?) what would this lens be good for?
Thanks in advance for any help. :D