party and buy wow gear official lenses for Canon APS
Actually older lens are reliable and you know they still works even after 3/4 years of usage. You always get what you pay for when it comes to photography gears. So, either you compromise image quality or build quality. Tamron SP AF 17-50mm f2.8, Sigma 17-70mm F2.8-4 DC from your list), its always good to use lenses from your camera manufacturer. Its because no one knows their camera better than who built them. 3rd party lenses generally have lower good copies so chances of getting a bad copy is high. If you really, again really in a tight budget, only then you should go for third party lenses.
Now, about the lenses you've chosen, each of them are well reputed for their good image quality. So you're in the safer side. Some of them are very soft on the tele end though (Sigma 17-70mm specially). Just ensure you get a good copy. If you can, buy them from a physical store where you can check focus accuracy, sharpness etc. Even the sharpest lens doesn't perform well when it cant focus accurately and a lot of third-party lenses have this problem. Sharpness also varies from product to product, so try 2/3 different copies and take the top performer.
Good things are not cheap and cheap things are not good. This is true of lenses, no matter the brand. There is a small premium for the brand name, yes, but it is small relative to optical quality. A poor Sigma lens costs little and an excellent one costs much more. Same goes for Canon.
So choosing the brand of your lens should be more about needs than cost. It is possible that depending on what you need, you may need 3 lenses in one brand while only 2 will do of another brand. This will save you money.
Remember to consider quality, the Sigma 17-70 F2.8-4 may go to 2.8 but you really wow gold do not want to use that wide open, the quality is not there. Once stopped down to F/4 is gets acceptable but you need to stop down more to get good quality out of it. I'd go with a Canon 17-55mm F/2.8 IS instead.
I heard good things about the Sigma 85mm F/1.4, which I have no tried. One the wide side, Canon has an 10-22mm F/3.5-4.5 which is quite good and gives you an overlap with another of your lenses and diminishes the number of times you changes lenses. I suggest you look at the Tokina 11-16mm F/2.8 too, it is truly excellent for an ultra-wide.
First of all, there are good third party wow gold lenses and there are bad manufacturer lenses, so it's better to look at what type of lens you need, then research the specific options.
For wide angle, does your 60D have the kit lens? If so I would suggest sticking with that for a bit, then see how you get on, once you start to reach the limitations of the lens you will know what you need to look for in the replacement.
The Sigma EX lenses to tend to be good, wow items but if you are looking at the 85mm f1.4 I would also suggest looking at the Canon 85mm f1.8, it's a cracking lens and a lot cheaper too.
As has already been mentioned you have a big gap above 85mm, maybe the Canon 55-250mm or a 75-300mm would be a good addition to your lens collection.
I haven't used the Sigma 17-70, so can't comment on it, but I do prefer fixed aperture lenses, but before recommending a wide angle I'd wait to see if you actually need one.
3 to 5 years is not old for a lens. Unlike typical electronics, lenses do loose very little value wow gold over time and you can sell them used for a reasonable price even after decades have passed. Newer lenses will, by trend, have better image quality than older ones. However, this trend won't be noticable when looking at the last 5 or 10 years. I would rely much more on reviews and tests instead of the lens' age.
You'll be able to find discussions like "Which wide-angle lens for a Canon APS-C camera should I buy?" and reviews to the according lenses all over the internet, so I won't go into detail about the advantages or disadvantages of the single lenses here. Instead, I want to give you a far more general advice:
You seem to be not too sure about which lenses you actually need. Thus, I'd suggest you start with the kit lens and see what you need. This will give you a lot more personal and precise informations about your needs than anyone else can give you. Also, if you're a beginner, having too many lenses might confuse you. When finding out your needs by hitting the kit lens' limits you'll be able to explore the "world of lenses" much better.
Just one tip for your first lens: If you're really serious about learning photography, you might want to choose a normal (~30mm on APS-C) prime lens instead of the zoom lens that is usually included as a kit lens. Besides the better image quality a prime lens usually has, it will also help you to learn how to compose. Regarding the topic which prime lens to buy, you can have a look at this question I posted recently.
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