I whole-heartedly agree with your estimation of the 28-300 Di. The best part of that lens is its compact quality ... but, that is where it ends. It was designed before the 18-200 Di-II ... which is an improvement ... but, the real working design is the 18-250 Di-II, hands-down. If you get a chance, check one out and BE AMAZED at the improved capability.
I think I've seen that lens on sale for big discounts quite a bit, especially these days. Like most 75-300's, it's one of those lenses specifically carried by retailers to be "upsell lenses"... where they try to get you to add one more item for $100-150 to increase their commissions without telling you that once you use it, you will suddenly understand why it was so cheap...
Originally Posted by Elisha82
Originally Posted by DonSchap
I've got nine "old" Minolta lenses and none of them suffer from front/back focus.
Trade ya! LOL :D
Eventually, none of mine will, either. Unfortunately, I am not alone with these issues. On other forum boards, I have become aware of many users of the 28mm and 24 mm complaining of the same issue.
Okay, here is a comparison thread, for your edification. I hope this helps explain my ... point of view