03-04-2017, 11:14 AM
Thanks for the link Dave! This is a much worse problem even than what they presented it as here. Yes, you can add an extension tube, but really if you are going to go that route, maybe you'd be better off with two or three prime lenses! (Which isn't to say that close focusing primes don't do this as well!)
Here is something that bugs me. I'm not going to name names but a particular photography site compares results of different lenses using focus charts. What they seem to do is to move the focus breathing lens closer in order to end up with the same field of view. This so wrong! For one thing it is always a good idea to get closer to your subject if you need maximum sharpness. They are saying that the G2 is actually less than 135mm when focusing close. Well, hell, forget comparing its sharpness to my Canon 70-200! That's not a fair comparison! They should compare it with my EF 135 f/2L! And lets see which has better corner sharpness in that test! And better background blur!
This is one way that a lens can appear to be sharper than it is!
Here is something that bugs me. I'm not going to name names but a particular photography site compares results of different lenses using focus charts. What they seem to do is to move the focus breathing lens closer in order to end up with the same field of view. This so wrong! For one thing it is always a good idea to get closer to your subject if you need maximum sharpness. They are saying that the G2 is actually less than 135mm when focusing close. Well, hell, forget comparing its sharpness to my Canon 70-200! That's not a fair comparison! They should compare it with my EF 135 f/2L! And lets see which has better corner sharpness in that test! And better background blur!
This is one way that a lens can appear to be sharper than it is!