CANON佳能40D/50D/60D裂像屏微棱对焦屏安装教程：

钢镊子插入锁扣装置,打开锁扣。其实用手指轻轻往外扳动这个机关，锁扣就弹开了。

同样,用(另一种塑料镊子带硅胶头)的工具夹住屏脚将对焦屏取出.Clamp the mounting tab of the focusing screen with the supplied tool and gently lift the screen out of the camera.

使用专用工具夹住屏脚,轻轻放入到相机里.Clamp the mounting tab of the focusing screen you wish to use with the supplied tool and gently place it into the screen holder.

磨砂面朝五棱镜放置,装反后手动对焦将不准确.The screen's split-image/micro-prism wants to toward the camera prism direction is correct

用手指轻轻压回锁扣,将锁扣锁定即可.Gently press up on the screen holder with the supplied tool until it locks in place. Or use a thumb operation can be also.

装上此屏后,多点对焦的红色提示灯仍然在,不影响自动对焦功能.

此款机型，对焦屏依靠上面的压框固定，压框为动结构，容易产生裂像圈不在正中心的情况，当然，不中心也不影响使用的。调节方法：将压框松开，将相机倒转，在取景器里观察，轻轻拍打相机，让裂像圈居中后，再重新扣上压框弹簧就可以了。