[flcheung]

小弟正準備買一枝 70-210 鏡頭，請各位C兄指點一下，小黑３定係sigma

70-210 macro 好D, 價錢接近很難選擇！

[HKTaz]

I'll go for Nikon.

It's my own experience, one Sigam len and one Nikon putting side by side for over 5 years (never touch). Then one day pick up those two lens again, the Nikon len is still very clean and clear, but the coating of the Sigma len is all decaied.

[tploh]

did not own a Sigma before but the remarks of Sigma's coating is not very lasting.

[tploh]

小黑３has good reputation.

[flcheung]

Thanks your idea!