優點:
- sharp image, better than the 300mm/F4
- fast focusing
- good reach for bird watching
- light enough for traveling for a whole day outdoor
- lucky enough to get it below $56,000 in July 2008
缺點:
- still a bit heavy to me
- foot plate too long
評價:
Before using this lens, I only used the 300mm/F4. This 500mm provides very sharp images, even with a TC14E or TC17E. However, I sometimes found some blur when using TC17E. For the convenience with the Wimberley II head, I changed the plate with the short Wimberley foot already. I am not so strong to hold it for a long day. Tried to shoot for 15 minutes at flying birds and my hands were so tired.