優點:
1. Full Frame can use . It can match with my 5D2 well , I haven\'t find any problem up to now
2. Price attractive compare with original Canon 28-300mm IS L
3. Weight is 550g only ,
4. Lense is Clear enough for me . At least ,I can see the Car\'s No as well as Canon 28-300 L Lense in 300mm range in morning time.
Other Range e.g 70mm, 50mm the resolution & Color is better than I expect. I use it to shoot with my dog at 70mm with Flash .Wooo...dog\'s hair can be counted as well as my 28-70L when 28-70L is quite heavy and make my fringer feel pain.
5. IS (VC) function is useful.
缺點:
1. Some report say it is not really 300mm but I haven\'t noticed it.
2. Some report say it is not so clear in 300mm range. but I haven\'t noticed it.
3. Small problem as other people say , the Lense is loose but can lock .
4. For 28 to 200mm is smooth to move but at 200mm point has a small friction before push to 300mm.
評價:
1. Very light only 550g can have 28 to 300 range, I find it is happy for me to use it.
. Especially, it can work well with my 580EX flash . So, I always put on it and replace my 24-28 L heavy canon Lense
2.I bought it and use for a few days . It work with my Flash and 5D2, 580EX well . I haven\'t find any problems up to now
3. My testing is more focus on 70 300mm range.
4. Anyway, the weight and the more than I exect performance , make me happy.
so, I give 4 star but keep 1 star my the area I haven't checked.