diff --git a/frontend/src/components/ui/CropFrame.dom.test.tsx b/frontend/src/components/ui/CropFrame.dom.test.tsx
index e344bc80..a6b6d33c 100644
--- a/frontend/src/components/ui/CropFrame.dom.test.tsx
+++ b/frontend/src/components/ui/CropFrame.dom.test.tsx
@@ -99,6 +99,24 @@ describe("CropFrame", () => {
     expect(rect()).toBe("0.300 0.300 0.400 0.400");
   });
 
+  it("takes the focus on a press, so the arrows go on from where the pointer left it", () => {
+    render(<Harness />);
+    const frame = screen.getByRole("group", { name: "common.cropFrame.frame" });
+    fireEvent.pointerDown(frame, { button: 0, clientX: 500, clientY: 300 });
+    fireEvent.pointerUp(frame, { clientX: 500, clientY: 300 });
+    expect(document.activeElement).toBe(frame);
+    const se = screen.getByRole("group", { name: "common.cropFrame.se" });
+    fireEvent.pointerDown(se, { button: 0, clientX: 960, clientY: 540 });
+    expect(document.activeElement).toBe(se);
+    // An edge is the pointer's only: its press puts the focus on the frame it belongs to.
+    fireEvent.pointerDown(document.querySelector<HTMLElement>(".cursor-ew-resize")!, {
+      button: 0,
+      clientX: 960,
+      clientY: 400,
+    });
+    expect(document.activeElement).toBe(frame);
+  });
+
   it("lets a press outside the frame through to the player, and keeps one on the frame", () => {
     const click = vi.fn();
     render(
diff --git a/frontend/src/components/ui/CropFrame.tsx b/frontend/src/components/ui/CropFrame.tsx
index 460f7c04..c377ccdc 100644
--- a/frontend/src/components/ui/CropFrame.tsx
+++ b/frontend/src/components/ui/CropFrame.tsx
@@ -90,6 +90,9 @@ export function CropFrame({ aspect, rect, ratio, onChange, className }: Props) {
     // The press is the frame's: not the video's play / pause, not a scrub of anything under it.
     e.stopPropagation();
     e.preventDefault();
+    // preventDefault also stops the press from focusing: focused by hand, so the arrows go on from
+    // here (an edge is the pointer's only, so its frame takes the focus).
+    e.currentTarget.closest<HTMLElement>("[tabindex]")?.focus({ preventScroll: true });
     try {
       e.currentTarget.setPointerCapture(e.pointerId);
     } catch {