Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: What is grey market? how is it different from the regular one ?
Document: Works better than expected!! I wanted to get a 50mm lens before going on vacation and was a little worried about this one being &#34;grey market&#34;, but it takes wonderful pictures using my Canon T5i. I'll post some pictures later
got it cheaper because the grey market version just came from out of country and as such was cheaper to manufacture, but is the exact same thing.
Quality is good although it's from gray market. Automatic focus voice may be different from other good lens, but after all it's made from plastic in total.
Great Canon Product. However, being &#34;new&#34; it was rather dusty, the lens cap was stuck on by force, which ruined the threading for lens filters. Also the accessory lens filter I bought was also dusty. Thanks &#34;Grey Market&#34; (sarcasm)!
This is grey market product that is not covered by Canon warenty.I received the item over 3 months ago and since I didn't have camera at that time, I couldn't test if the lens works properly. I just got my 70d and guess what, there are focus issues with the lens and I'm keep getting error messages.
The reason this lens is selling for less than the same item listed at http://www.amazon.com/Canon-50mm-1-8-Camera-Lens/dp/B00007E7JU/ref=sr_1_2?s=electronics&ie;=UTF8&qid;=1350244710&sr;=1-2&keywords;=canon+lensis because the item here is a direct import item (What is commonly referred to as Grey market.
Great lens for the price, for both video and photo. Spend a few more bucks and go for one that is not gray market.
I had one of this kind before, so it's not a bout the quality of the lens but the one from &#34;gray market&#34;.So far so good for a &#34;gray market&#34; product (I was a bit worried)... very nice, neat. And to my own experience, work perfectly as those  from &#34;white market&#34;.I would recommend this lens to my friends.
This is a great lens for the price. They seem to be pretty sharp and it's great to be able to open up to 1.8. It's better than my kit zoom lenses, so I use this most of the time and &#34;zoom&#34; myself around. I had one that was not gray market and knocked it over and broke it. There are just cheap plastic clips inside. Since this was a replacement I wanted to pay as little as possible.
This lens takes way better portrait photos than the standard 55mm canon lens. Everything in focus remains super sharp while everything else falls into a nice depth of field blur. Another nice quality is that the lens is very light and compact making it to where I can carry my other lenses in my case without an issue. Sure there are better lenses than this one on the market, but nearly all of those cost hundreds more than this lens. As far as price vs quality goes, it's hard to beat this lens.
Answer: Gray market products are products purchased outside the US (for a better exchange rate) and then resold in the US. They do not come with US warranties, only international warranties. For the most part, it is the exact product an authorized dealer would sell just at a cheaper price.