diff --git a/Gemfile b/Gemfile
index ce3041f87..ac5baa387 100644
--- a/Gemfile
+++ b/Gemfile
@@ -19,7 +19,7 @@ gem "therubyracer", "~> 0.12.3", platforms: :ruby
 
 gem "active-fedora", "~> 11.0.0"
 gem "active-triples", "~> 0.11.0"
-gem "blacklight-gallery", "~> 0.5.0"
+gem "blacklight-gallery", "~> 0.8.0"
 gem "blacklight_range_limit", "~> 6.1.2"
 gem "curation_concerns", "~> 1.7.7"
 gem "ezid-client", "~> 1.2"
diff --git a/Gemfile.lock b/Gemfile.lock
index 102ced960..9e8bb3498 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -97,7 +97,7 @@ GEM
     american_date (1.1.1)
     arel (7.1.4)
     ast (2.3.0)
-    autoprefixer-rails (7.1.2.3)
+    autoprefixer-rails (7.1.2.6)
       execjs
     awesome_nested_set (3.1.3)
       activerecord (>= 4.0.0, < 5.2)
@@ -116,10 +116,11 @@ GEM
       execjs (~> 2.0)
     bcp47 (0.3.3)
       i18n
-    blacklight (6.10.1)
+    blacklight (6.11.0)
       bootstrap-sass (~> 3.2)
       deprecation
       globalid
+      jbuilder
       kaminari (>= 0.15)
       nokogiri (~> 1.6)
       rails (>= 4.2, < 6)
@@ -129,8 +130,8 @@ GEM
       blacklight (~> 6.0)
       cancancan (~> 1.8)
       deprecation (~> 1.0)
-    blacklight-gallery (0.5.0)
-      blacklight (> 6.0.0.pre, < 7)
+    blacklight-gallery (0.8.0)
+      blacklight (~> 6.3)
       bootstrap-sass (~> 3.0)
       openseadragon (>= 0.2.0)
       rails
@@ -484,7 +485,7 @@ GEM
       activesupport
       nokogiri (>= 1.4.2)
       solrizer (~> 3.3)
-    openseadragon (0.3.3)
+    openseadragon (0.4.0)
       rails (> 3.2.0)
     os (0.9.6)
     parallel (1.12.0)
@@ -800,7 +801,7 @@ DEPENDENCIES
   active-triples (~> 0.11.0)
   american_date (~> 1.1.0)
   awesome_print
-  blacklight-gallery (~> 0.5.0)
+  blacklight-gallery (~> 0.8.0)
   blacklight_range_limit (~> 6.1.2)
   byebug
   capistrano (~> 3.8.0)
diff --git a/app/controllers/catalog_controller.rb b/app/controllers/catalog_controller.rb
index cfbfb10c2..13d82ec27 100644
--- a/app/controllers/catalog_controller.rb
+++ b/app/controllers/catalog_controller.rb
@@ -52,6 +52,7 @@ def enforce_show_permissions(_opts = {})
     config.search_builder_class = SearchBuilder
     config.view.gallery.partials = [:index_header, :index]
     config.view.slideshow.partials = [:index]
+    config.view.slideshow.slideshow_method = :choose_image
 
     # config.show.tile_source_field = :content_metadata_image_iiif_info_ssm
     # config.show.partials.insert(1, :openseadragon)
diff --git a/config/initializers/slideshow_method.rb b/config/initializers/slideshow_method.rb
new file mode 100644
index 000000000..9664eb5d3
--- /dev/null
+++ b/config/initializers/slideshow_method.rb
@@ -0,0 +1,20 @@
+module Blacklight::GalleryHelper
+  WITH_LARGE_IMAGES = %w[
+    Image
+    ComponentMap
+    IndexMap
+    ScannedMap
+  ].freeze
+
+  def choose_image(document, options)
+    if WITH_LARGE_IMAGES.include? document["has_model_ssim"].first
+      image_tag(document["image_url_ssm"].first, options)
+    else
+      render_thumbnail_tag(
+        document,
+        options,
+        url_options.reverse_merge(suppress_link: true)
+      )
+    end
+  end
+end