• Time: 120 seconds
• Size: None
Note that the size of a file you can upload within the time period is dependent upon other factors, including overhead and bandwidth. This may vary from user to user.
Using the "new" upload interface, the one that offers feedback during upload, you are limited by your patience and by moderators who may decide the attached file is simply too large to be worth keeping.
Wide GIF files are displayed in thumbnail view as a JPG file, but when the thumbnail is clicked they display full size as a GIF file.
For size of graphics in posts, go HERE.