Could you give me some insight about this lens? Canon EF Telephoto zoom lens - 70 mm - 300 mm - F/4.5-5.6 - Canon EF
I find its size very appealing, but I'm not sure of the performance or any alternatives for a Canon 30D. Are there some equivalent lenses from other manufacturers, like Tamron or Sigma? And are they worth the money?
Many thanks!