I bought this lens used from MarketPlace thinking that it is the EX-DG version, not that the seller intentionally misled me, but I was naive in not knowing what DG is special for. I only confirmed that my version is EX and that it is a 1:1 macro.
Even with the non-DG version, I kind of like it after taking few test shots. But I do have several questions to ask.
1. Any significance difference between DG vs non-DG
Peter has told me not to worry too much as the old version is a favorite among macro shooters. And Frank's words is even more encouraging, there is usually no crappy macro lens. He means that Macro lens are special in the area of sharpness.
And so far I find the test images to be good to outstanding and concur with Peter and Frank's valuable inputs . Others, please comment what you know about DG and non-DG version of the Sigma macro.
2. MF/AF switch on lens barrel
I find the MF switch on lens barrel somewhat a strange beast to me. Upon toggling from AF to MF, the focusing ring can't be used for MF until I also switch to MF on body. Without switching to MF on body, the ring is difficult to turn as the AF is still engaged
And here comes the caveat that I have the biggest problem with. With MF is switched on camera body as well as the lens barrel, I lose focus trap that I usually rely on in AF mode where shutter is disabled until focus lock is obtained. I can only rely on the focus beep confirmation to hit the focus lock. And my previous dependency on the focus trap locking get me trained to hit the shutter fully pressed while aiming at the subject. And that practice get me into troubles into shooting many out-of-focus shots. With this lens, I need to re-train my shutter practice.
3. Some test pictures
Various mistakes happen with some soft images. What do you all think? Is the lens a keeper?