DDWD: that is the problem with third party lenses. Yes glass may be good but the lens electronics will likely to have issues, if not now, it will be with the future bodies. Save your $$$ and buy OEM and never look back.
sure, that is until you get a new body in the future and get some surprises. maybe or maybe not. then all youve got is a disposable third party lens. But on the lighter side im not saying all 3rd party lens are bad, some of those manual focus ones are optically good or even better than OEM, at least with manual focus it will last your bodies lifetime as long as you dont break your lens. NO ELECTRONICS to deal with.
well, since you are missing the point, be happy with your 3rd party glass then for all i care. ha! marketing ploy you say?OEM designs their lenses to work with their bodies, . what about 3rd party? they take apart your OEM lens, reverse engineer the electronics and maybe do their own glass designs or whatever. People buy such expensive bodies and put a crappy 3rd party lens and complain whether they got a lemon or not. so if you have saved 5 more months im sure youd be very happy with your canon 24-70 f2.8 and not not look back with your tamron, which might not or might have issues with your future canon bodies. so yeah if you still dont get it, i rest my case.
yep! that is the problem with 3rd party lenses. hey don't get me wrong, third party lenses are fine as long as they are manual focus.but when it comes to electronic focusing, the OEM camera will always have something different in their new bodies that will prevent those 3rd party to function a 100%. they can reverse engineer all they want, but the OEM camera will be always one step ahead. so yeah i blame them (3rd party) and in short all im saying is people save their $$$ for OEM. if they cant afford right now, maybe a few months more of saving and they will be able to. I learned that the hard way. few years back i had a sigma 70-200 f2.8. worked fine with the current body of that time, then comes a new body and lo! autofocus wont work on live view! so yeah dont bother with these 3rd party lenses. they are not that cheap anyway, so just save your bucks!
Edgar_in_Indy: Seems like there's a bit of defensiveness and aggressiveness in many of the comments from Canon and Nikon users. You should be happy to have more choices, instead of feeling threatened.
I love my Pentax DSLR, but I wish that more of the new and exciting lenses from Tamron and Sigma were available in my mount.
yeah and pray that you get a good copy with no issues. oh i forgot you could always send it back and get another one..and another one,. and another one.
that is the problem with third party lenses. Yes glass may be good but the lens electronics will likely to have issues, if not now, it will be with the future bodies. Save your $$$ and buy OEM and never look back.
Average User: Great review, and on the money. This camera has the capability of producing really great shots for a photographer with the time and patience to use it, but focus is the issue. Now that there are 24 mp with no anti aliasing filter, the image clarity can be amazing. And this is the model I want because of the articulating screen. I use it almost exclusively with the new Sigma 18-35, and when it does get the focus right, it's amazing. But that's not nearly often enough. In fact, whatever lens you use with this camera, and I have tried a lot, focus is an issue. Clarity is great, but if the capability of the camera to utilize the clarity is compromised by a dysfunctional live view, What's the point? This camera needs a major software fix.
its your sigma lens. not the camera.