1. 삼식이 E마운트
- 아마존 구매 링크: https://www.amazon.com/Sigma-Contemporary-Pixi-Basic-Accessory-Bundle/dp/B074PVP8HG/ref=sr_1_5?ie=UTF8&qid=1534141190&sr=8-5&keywords=sigma+30mm+1.4+e+mount
- 후기: http://blog.naver.com/PostView.nhn?blogId=hanjh2384&logNo=220669758210
- 카페렌즈 vs 삼식이: https://m.blog.naver.com/PostView.nhn?blogId=ysy1110horse&logNo=221180442349&proxyReferer=https%3A%2F%2Fwww.google.co.kr%2F
2. 초점거리 알아보기
https://blog.naver.com/astalw/100169734052
3. 심도 알아보기
http://openeidos.tistory.com/885