elan7e

It may be off topic.
In the film decade, when we justified the the lens image quality. We enlarged picture to 16x24 or bigger and then check the grain size, and the colour is the same as the real scene or not. 跟着和班 friends 吹一輪水。
Now is digital era, we seldom print the pictures. How can we 判斷 the lens IQ?
Thank you.

I am now using P & S digital only.