I will not revisit all the previous reviews and the unanimous opinion of the specialized press .... this objective is heavy, expensive, and cumbersome ... wonderful! I am excited and weight lets forget so soon the whole is balanced with my 7D. Exceptional is fully adapted for once.
However I would like to give a balanced opinion on Amazon. I had a blockage of the order by my bank (blocked credit card to 2000 / week, I had never had the opportunity to check before) and Amazon was PERFECT to communicate and resolve the concern, really flawless ! The price and deadlines are IRREPROACHABLE also .... BUT the package was delivered in my absence (normal, most people commander of objects of this award have filled days) ... and left without further comment a neighbor (!). Furthermore the external condition of the parcel was seriously degraded, manipulations were clearly brutal.
Luckily the package was handed to us and all is well .... but we find that Amazon should consider proposing other shipping methods for objects of this award and also fragile. On this point they are still light and without worry if I'll order their doubler this weekend I would hesitate to start an objective of this award. This point is clearly to reconsider, a pity because the rest is really a faultless!
Hope this helps,
Photofan