출처 : https://dc.watch.impress.co.jp/img/dcw/docs/1402/255/html/29_o.jpg.html

 

출처 : https://www.dpreview.com/forums/post/54319541

 

츨처 : https://m.dpreview.com/interviews/1348083745/sony-interview-600mm-f4-200-600mm-launch

 

출처 : https://www.dpreview.com/forums/post/58960630

 

출처 : https://medium.com/click-click-photo/camera-101-understanding-the-basics-to-master-your-camera-bece89123362

 

출처 : https://www.scoop.it/topic/pentax/p/2850118502/2012/10/02/small-camera-big-lens

 

망원렌즈입니다만....