diff --git a/package.json b/package.json
index 447d967..6fa1bdb 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@baekryang/responsive-image-canvas",
-  "version": "1.5.0",
+  "version": "1.5.2",
   "publishConfig": {
     "registry": "https://git.bnovalab.com/api/packages/baekryang/npm/"
   },
diff --git a/src/components/ImageDistortion.tsx b/src/components/ImageDistortion.tsx
index 26c3677..afb8b3c 100644
--- a/src/components/ImageDistortion.tsx
+++ b/src/components/ImageDistortion.tsx
@@ -115,7 +115,7 @@ export const ImageDistortion: React.FC<ImageDistortionProps> = ({
       return;
     }
 
-    console.log('[ImageDistortion] 초기화 시작');
+    console.log('[ImageDistortion] v1.5.1 초기화 시작');
     const scene = new ThreeScene(containerRef.current);
     sceneRef.current = scene;
 
@@ -277,13 +277,15 @@ export const ImageDistortion: React.FC<ImageDistortionProps> = ({
     // 스프라이트 이펙트 업데이트 (왜곡 영역과 독립적)
     if (spriteManagerRef.current) {
       const mouseState = mouseInteractionHook.getMouseState();
+      const resolution = sceneRef.current?.getResolution() ?? { x: 1, y: 1 };
       spriteManagerRef.current.update(
         spriteEffectAreas,
         deltaTime,
         {
           position: mouseState.position ?? null,
           isDragging: mouseState.isDragging,
-        }
+        },
+        resolution,
       );
 
       // 스프라이트 메쉬 변경 후 렌더링 필요
diff --git a/src/engine/SpriteEffectInstance.ts b/src/engine/SpriteEffectInstance.ts
index 534387d..8e23b1e 100644
--- a/src/engine/SpriteEffectInstance.ts
+++ b/src/engine/SpriteEffectInstance.ts
@@ -240,7 +240,7 @@ export class SpriteEffectInstance {
 	 */
 	private _logCounter = 0;
 
-	update(deltaTime: number, emitCenter: Point): void {
+	update(deltaTime: number, emitCenter: Point, resolution?: { x: number; y: number }): void {
 		if (!this.ready) return;
 
 		// ambient 방출
@@ -297,7 +297,7 @@ export class SpriteEffectInstance {
 			particle.position.y += particle.velocity.y * deltaTime;
 
 			// Three.js 메쉬 동기화
-			this.syncMesh(particle);
+			this.syncMesh(particle, resolution);
 		}
 	}
 
@@ -328,7 +328,7 @@ export class SpriteEffectInstance {
 	 * 파티클 상태를 Three.js 메쉬에 동기화
 	 * 정규화 좌표(0-1) → NDC(-1~1) 변환, y축 반전
 	 */
-	private syncMesh(particle: SpriteParticle): void {
+	private syncMesh(particle: SpriteParticle, resolution?: { x: number; y: number }): void {
 		const mesh = this.meshes[particle.index];
 		if (!mesh) return;
 
@@ -344,7 +344,9 @@ export class SpriteEffectInstance {
 		mesh.position.y = -(particle.position.y * 2 - 1);
 		mesh.position.z = -0.01; // 카메라가 -z를 바라보므로 음수가 앞쪽
 
-		mesh.scale.set(particle.scale, particle.scale, 1);
+		// 종횡비 보정: OrthographicCamera(-1,1,1,-1) 기준 정사각형 NDC에서 직사각형 뷰포트 왜곡 방지
+		const aspect = resolution ? resolution.x / resolution.y : 1;
+		mesh.scale.set(particle.scale / aspect, particle.scale, 1);
 		mesh.rotation.z = particle.rotation;
 
 		const mat = mesh.material as THREE.MeshBasicMaterial;
diff --git a/src/engine/SpriteEffectManager.ts b/src/engine/SpriteEffectManager.ts
index 7f20a10..8a27aab 100644
--- a/src/engine/SpriteEffectManager.ts
+++ b/src/engine/SpriteEffectManager.ts
@@ -90,7 +90,7 @@ export class SpriteEffectManager {
 	 * @param deltaTime 초 단위 프레임 시간
 	 * @param touchState 마우스/터치 상태
 	 */
-	update(effectAreas: SpriteEffectArea[], deltaTime: number, touchState: SpriteEffectTouchState): void {
+	update(effectAreas: SpriteEffectArea[], deltaTime: number, touchState: SpriteEffectTouchState, resolution?: { x: number; y: number }): void {
 		// 현재 터치 중인 영역 감지
 		const currentTouchingAreas = new Set<string>();
 
@@ -120,7 +120,7 @@ export class SpriteEffectManager {
 				}
 
 				// 매 프레임 업데이트 (ambient 방출 + 파티클 물리)
-				instance.update(deltaTime, area.position);
+				instance.update(deltaTime, area.position, resolution);
 			}
 		}