--- a/src/pyams_file/image.py	Wed Oct 24 16:34:49 2018 +0200
+++ b/src/pyams_file/image.py	Sun Nov 11 17:11:35 2018 +0100
@@ -206,6 +206,16 @@
         return round(ratio * thumb_size[0]), round(ratio * thumb_size[1])
 
 
+@adapter_config(name='banner', context=IImage, provides=IThumbnailer)
+class ImageBannerThumbnailer(ImageRatioThumbnailer):
+    """Image banner thumbnail adapter"""
+
+    label = _("Banner thumbnail")
+    weight = 8
+
+    ratio = (5, 1)
+
+
 class ResponsiveImageThumbnailer(ImageSelectionThumbnailer):
     """Responsive image thumbnailer"""
 

--- a/src/pyams_file/zmi/image.py	Wed Oct 24 16:34:49 2018 +0200
+++ b/src/pyams_file/zmi/image.py	Sun Nov 11 17:11:35 2018 +0100
@@ -459,6 +459,54 @@
 
 
 #
+# Image banner thumbnail selection
+#
+
+@viewlet_config(name='image.thumb.banner.action', context=IImage, layer=IAdminLayer, view=IMediaWidget,
+                manager=IContextActions, weight=70)
+class ImageBannerThumbnailAction(FileModifierAction):
+    """Banner thumbnail image selection"""
+
+    _label = _("Select banner thumbnail...")
+
+    @property
+    def label(self):
+        return '<div>{label}</div><div class="padding-y-5"><img src="{url}/++thumb++banner:200x128?_=" ' \
+               '/></div>'.format(label=self.request.localizer.translate(self._label),
+                                 url=absolute_url(self.context, self.request))
+
+    label_css_class = 'fa fa-fw-md fa-window-minimize fa-rotate-180'
+
+    url = 'banner-thumbnail.html'
+    modal_target = True
+
+
+@pagelet_config(name='banner-thumbnail.html', context=IImage, layer=IPyAMSLayer, permission=VIEW_PERMISSION)
+@ajax_config(name='banner-thumbnail.json', context=IImage, layer=IPyAMSLayer, permission=VIEW_PERMISSION)
+@implementer(IThumbnailForm)
+class ImageBannerThumbnailEditForm(ImageSelectionThumbnailEditForm):
+    """Image banner thumbnail edit form"""
+
+    prefix = 'image_banner.'
+
+    legend = _("Select banner thumbnail")
+    icon_css_class = 'fa fa-fw fa-window-minimize fa-rotate-180'
+
+    selection_name = 'banner'
+    selection_ratio = '5:1'
+
+
+@adapter_config(context=(IImage, IAdminLayer, ImageBannerThumbnailEditForm), provides=IFormHelp)
+class ImageBannerThumbnailEditFormHelpAdapter(FormHelp):
+    """Banner image thumbnail edit form help adapter"""
+
+    message = _("""You can use this form to select a banner thumbnail of this image.
+
+**WARNING**: cropping or resizing an image will reset all selected thumbnails and adaptive images!!""")
+    message_format = 'rest'
+
+
+#
 # Extra-small devices selection
 #