diff --git a/frontend/src/pages/QuizPage.jsx b/frontend/src/pages/QuizPage.jsx
index 338b3d6..8e37659 100644
--- a/frontend/src/pages/QuizPage.jsx
+++ b/frontend/src/pages/QuizPage.jsx
@@ -1065,9 +1065,9 @@ const timerStarted = timeLeft !== null
               {expandedImagePath && (
                 <div className="image-lightbox" role="dialog" aria-modal="true" aria-label="Expanded question image" onClick={() => setExpandedImagePath('')}>
                   <div className="image-lightbox-controls" onClick={e => e.stopPropagation()}>
-                    <button type="button" onClick={() => adjustImageZoom(-0.5)} disabled={imageZoom <= 1}>-</button>
+                    <button type="button" onClick={() => adjustImageZoom(-0.1)} disabled={imageZoom <= 1}>-</button>
                     <span>{Math.round(imageZoom * 100)}%</span>
-                    <button type="button" onClick={() => adjustImageZoom(0.5)} disabled={imageZoom >= 4}>+</button>
+                    <button type="button" onClick={() => adjustImageZoom(0.1)} disabled={imageZoom >= 4}>+</button>
                     {[1, 2, 3, 4].map(zoom => (
                       <button key={zoom} type="button" onClick={() => setImageZoom(zoom)} disabled={imageZoom === zoom}>{zoom}x</button>
                     ))}