diff --git a/rtchallenge/src/camera.rs b/rtchallenge/src/camera.rs
index f494256..2813182 100644
--- a/rtchallenge/src/camera.rs
+++ b/rtchallenge/src/camera.rs
@@ -28,6 +28,13 @@ pub enum RenderStrategy {
     Rayon,
     WorkerPool,
 }
+
+impl Default for RenderStrategy {
+    fn default() -> RenderStrategy {
+        RenderStrategy::Rayon
+    }
+}
+
 impl FromStr for RenderStrategy {
     type Err = serde_json::error::Error;
     fn from_str(s: &str) -> Result<RenderStrategy, serde_json::error::Error> {
@@ -35,7 +42,7 @@ impl FromStr for RenderStrategy {
     }
 }
 
-#[derive(Clone)]
+#[derive(Clone, Default)]
 pub struct Camera {
     hsize: usize,
     vsize: usize,