I have been using this lens for 8 years. And in frost -30, and in the heat, and in the rain, and in the mud, he never had any problems. If you find fault, you can't use a polarizing filter with a lens hood installed, and I would like more aperture . But Canon marketers stubbornly stick to their line, offering the buyer to choose between a stabilizer and aperture. And so - this is the most versatile lens in the Canon lineup, for almost all occasions.
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