I am very happy with this purchase but I have a few complaints. First, the focus ring is not sensitive enough. In order to focus from the deepest to the shallowest depth of field, you have to rotate it endlessly, making quick focus adjustment quite a challenge. Also, this is a 67mm lens, which is different from the standard lens your Canon probably came with. I knew that and it's not a bad thing, just be aware that filters and lens attachments don't necessarily match. .
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