How to get bigger size pictures if me/home items in facebook sdk.

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C#

ASP.NET

MVC

Facebook-API

SDK

Hello,

Now i'm using Facebook SDK on my ASP.NET MVC5 project, and for data query I use Graph Api.

When I read a data from "me/home", almost each read item of it have key called "picture", that represents image attached to post. But it is thumnbail size, how can I get it bigger resolution and better quality?

I hope for your help.
Thank you for your time