diff --git a/boto/ec2/connection.py b/boto/ec2/connection.py
index 5af71b2c14..6ec1013f73 100644
--- a/boto/ec2/connection.py
+++ b/boto/ec2/connection.py
@@ -2205,17 +2205,17 @@ def get_all_snapshots(self, snapshot_ids=None,
                              present, only the Snapshots associated with
                              these snapshot ids will be returned.
 
-        :type owner: str
-        :param owner: If present, only the snapshots owned by the specified user
+        :type owner: str or list
+        :param owner: If present, only the snapshots owned by the specified user(s)
                       will be returned.  Valid values are:
 
                       * self
                       * amazon
                       * AWS Account ID
 
-        :type restorable_by: str
+        :type restorable_by: str or list
         :param restorable_by: If present, only the snapshots that are restorable
-                              by the specified account id will be returned.
+                              by the specified account id(s) will be returned.
 
         :type filters: dict
         :param filters: Optional filters that can be used to limit
@@ -2236,10 +2236,11 @@ def get_all_snapshots(self, snapshot_ids=None,
         params = {}
         if snapshot_ids:
             self.build_list_params(params, snapshot_ids, 'SnapshotId')
+
         if owner:
-            params['Owner'] = owner
+            self.build_list_params(params, owner, 'Owner')
         if restorable_by:
-            params['RestorableBy'] = restorable_by
+            self.build_list_params(params, restorable_by, 'RestorableBy')
         if filters:
             self.build_filter_params(params, filters)
         if dry_run:
diff --git a/tests/unit/ec2/test_snapshot.py b/tests/unit/ec2/test_snapshot.py
new file mode 100644
index 0000000000..55dc46590a
--- /dev/null
+++ b/tests/unit/ec2/test_snapshot.py
@@ -0,0 +1,59 @@
+from tests.unit import AWSMockServiceTestCase
+
+from boto.ec2.connection import EC2Connection
+from boto.ec2.snapshot import Snapshot
+
+
+class TestDescribeSnapshots(AWSMockServiceTestCase):
+
+    connection_class = EC2Connection
+
+    def default_body(self):
+        return """
+            <DescribeSnapshotsResponse xmlns="http://ec2.amazonaws.com/doc/2013-10-01/">
+               <requestId>59dbff89-35bd-4eac-99ed-be587EXAMPLE</requestId>
+               <snapshotSet>
+                  <item>
+                     <snapshotId>snap-1a2b3c4d</snapshotId>
+                     <volumeId>vol-1a2b3c4d</volumeId>
+                     <status>pending</status>
+                     <startTime>YYYY-MM-DDTHH:MM:SS.SSSZ</startTime>
+                     <progress>30%</progress>
+                     <ownerId>111122223333</ownerId>
+                     <volumeSize>15</volumeSize>
+                     <description>Daily Backup</description>
+                     <tagSet>
+                        <item>
+                           <key>Purpose</key>
+                           <value>demo_db_14_backup</value>
+                        </item>
+                     </tagSet>
+                  </item>
+               </snapshotSet>
+            </DescribeSnapshotsResponse>
+        """
+
+    def test_cancel_spot_instance_requests(self):
+        self.set_http_response(status_code=200)
+        response = self.service_connection.get_all_snapshots(['snap-1a2b3c4d', 'snap-9f8e7d6c'],
+                                                             owner=['self', '111122223333'],
+                                                             restorable_by='999988887777',
+                                                             filters={'status': 'pending',
+                                                                      'tag-value': '*db_*'})
+        self.assert_request_parameters({
+            'Action': 'DescribeSnapshots',
+            'SnapshotId.1': 'snap-1a2b3c4d',
+            'SnapshotId.2': 'snap-9f8e7d6c',
+            'Owner.1': 'self',
+            'Owner.2': '111122223333',
+            'RestorableBy.1': '999988887777',
+            'Filter.1.Name': 'status',
+            'Filter.1.Value.1': 'pending',
+            'Filter.2.Name': 'tag-value',
+            'Filter.2.Value.1': '*db_*'},
+            ignore_params_values=['AWSAccessKeyId', 'SignatureMethod',
+                                  'SignatureVersion', 'Timestamp',
+                                  'Version'])
+        self.assertEqual(len(response), 1)
+        self.assertIsInstance(response[0], Snapshot)
+        self.assertEqual(response[0].id, 'snap-1a2b3c4d')