Canon EFs 18-135mm vs EFs 18-200mm ?
What the pros & cons between those lenses ?
Is 18-200 less sharp than 18-135 ?
Is 18-200 more prone to flare & CA ?
For short distance, say 3-5 meters,
200mm is about the same with 135mm ?
What's the longest actual fl for both lenses in short distance (3-5m) ?