Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: The lens is genuine from Canon?
Document: I like it, love this type of lens a lot and all the &#34;aditaments&#34; and accessories for my canon camera.
And its aperture has eight blades instead of just five found in this lens. The effect of more blades means the objects in your background will have a smoother blur to them and generally will look better.Canon EF 50mm f/1.4 USM Standard & Medium Telephoto Lens for Canon SLR CamerasHere I'll explain how the f-stop or aperture priority works on digital SLR cameras.
Love this lens! Shipped fast!
Great Lens! Love using this lens the pictures turn out great  This is the first time using this type of lens.
Came as promised, carefully packed, all items as described. A decent all purpose lens for this work horse of a camera.
So would need to be extra careful when handling this lens. Not sure how long it will last but compare to the 50mm 1.4 price tag, i could get 2 more of these if mine broke.
This bundle is a great price at $120 at the time of writing this review the lens itself sells for over $100 on Amazon. To me this lens and this package is a must buy for any new digital SLR owner and even advanced users. This is one of my favorite lenses and I always keep it on my camera.
All the extra stuff it comes with is nice. I'll never use the blower. I'm using the lens keeper and UV filter. UV filters are pretty good for protecting the lens, but other than that, it was a nice addition. This package is better than buying the lens outright. You get all this extra stuff with it, so it's more fun.
This in my opinion is the one thing everybody who purchases an expensive lens should do. UV filters don't affect the photographs you take but it's a layer of plastic between the scratchable glass and the world around you. It's a MUST BUY.If your photographer who's not on a budget and really wants the best lens in my opinion check out the 50mm 1.4 f-stop lens below.
I am not a professional hence my review is based on a regular usage of this lens. I like it and loving the way it enables me to get close ups.The other accessories that came along are also awesome coz I think its a good deal for the price. Shipment was delayed due to thanksgiving but I dont blame the seller.
Answer: I'm not a forensic expert on camera lenses, however its a great lens for the money really nice pictures.