FF Lens for a Canon 70D, any downside?

Just got a 70D, upgraded from an SL1.

Anyway I only have one lens for it, the 18-55 STM kit lens for the SL1.

With the 70D crop sensor, I was planning on getting a FF lens such as the: 24-105 F/4L or the 24-70 f/4.

Are there going to be any issues with the Full frame USM lens on my crop sensor camera?

Other than field of view, nope. EF lenses work fine on EF-S mount cameras.

Either lens will work just fine. All Ef lenses work on any crop sensor cameras.

The question is- why do you want to get a $500-$800 lens? What do you plan on using it for, and what do you need that your current lens doesn't provide?

I just started shooting lots of events/concerts (mainly at night but some in the day time). And with the 18-55mm I do not get that zoom that I'm looking for.
Don't know which lens best fit my reason of shooting. Anyone... Please help. I appreciate it. Thanks.

if you're shooting events/ concerts at night, i think you'd be better off with a prime than an f4 lens

If you need reach, the 55-250 STM is an excellent choice to pair with the 70d. You can find it used/refurbished for around $200.

If you need reach and a larger aperture for low light conditions, any of the 70-200 variants will be better options.

Going from 55mm to 70mm is the difference of half a step. Going to 105mm is about two steps. If you think that's enough reach, than go for it. If not, look into some of the longer options.

Alternatively, you can look at the 85mm f/1.8, 100mm f/2, 135mm f/2, or 200mm f/2.8 for more reach and larger apertures, without the convenience of a zoom.

balfaro17 wrote in post #17751795
I just started shooting lots of events/concerts (mainly at night but some in the day time). And with the 18-55mm I do not get that zoom that I'm looking for.
Don't know which lens best fit my reason of shooting. Anyone... Please help. I appreciate it. Thanks.

I would be looking for faster glass than F4 if you shoot at night a lot. You will live at ISO 6400 anyways doing night concerts/events.

Either a 17-55 F2.8 flavor. Or maybe even just an 85mm F1.8 for those times (assuming you need telephoto).

Very best,

MalVeauX wrote in post #17751999
I would be looking for faster glass than F4 if you shoot at night a lot. You will live at ISO 6400 anyways doing night concerts/events.

Either a 17-55 F2.8 flavor. Or maybe even just an 85mm F1.8 for those times (assuming you need telephoto).

Very best,

Agree with 85 1.8 suggestion. Cheap and very good. Small and lightweight, auto focuses very fast.

balfaro17 wrote in post #17751782
Just got a 70D, upgraded from an SL1.

Anyway I only have one lens for it, the 18-55 STM kit lens for the SL1.

With the 70D crop sensor, I was planning on getting a FF lens such as the: 24-105 F/4L or the 24-70 f/4.

Are there going to be any issues with the Full frame USM lens on my crop sensor camera?

Yes, you're going to be spending far too much for any reason. EF-S 17-55 f/2.8 will be faster, sharper, and roughly the same price.

I also have a 70D. The only efs lens I own is the 18-55 STM. I don't see a problem with that.

But, I also have a 6D. My lens collection is built around the full frame 6D. I think if you don't plan on moving to a full frame body SOON, the 24-70/105 lens are a waste of money. You can get the same IQ for less money with efs lenses. I have a 24-105 STM. It works on both bodies, is superior to the 24-105L in every way except weather protection. STM and video were made for each other.

You should be able to pick up a Canon/Sigma/Tamron 17-50/55 rather cheap these days. I've especially seen lots of Canon 17-55 lenses available on the forum.

Are your events/concerts such that you'd be able to use a flash?

In any case, I really don't care so much for using EF zooms for a crop camera such as the 70D when the EF-S zooms are lighter, smaller, cheaper and, for the most part, perform as well as their full frame counterparts.

I suggest you look into getting a used 15-85 IS or 18-135 IS STM. The former is built a bit better but, it's bigger, heavier and more expensive. IQ is about the same on each.

And I would supplement that purchase with either an EF 85 f/1.8 as noted above or a 135 f/2.8 (soft focus) or splurge on a 135 f/2. Or a 100 f/2.8.

The lenses noted in the last line above are prime lenses, that will work better in low light than any of the L zooms or EF-S zooms.

I see very little point these days in the 17-55 f/2.8 when you have already noted what's lacking - range wise - in your 18-55. The IQ in the 17-55 is not going to be much better - if at all - than the newer 18-135 STM but it is a lens that will perform better in low light. Still, how close are you to your subjects at these concerts and other events? Is 55mm enough? And, again, will a flash be used?

If you are going to be using a flash anyway, then the 18-135 STM would be fine.

If you need a longer range - like 70-200 - look at either the Tamron 70-300 VC or one of the f/4 Canons - 70-200 f/4 IS or without IS.

Only two downsides IMHO;

Weight. Cost.

It's not a big downside, but you are adding weight over an EF-S equivalent.

Cost is another consideration that may 'weigh" more on your decision.

I picked up a sigma 17-50 f2.8, they run $469, you can probably find them for less if you eBay or grey market. Additionally, I have a 55-250stm on the way, that I bought used for $160. I don't expect that the 55-250 is going to do that well in low light though unless you're using a high ISO. I also keep two primes with me, the Canon 50mm f1.8 and the Canon 85mm f1.8. Could you fit a second body in the budget to keep with you instead of doing lens swaps, and also have a backup? I'm not sure that a non-IS f4 lens is going to suit you well.

balfaro17 wrote in post #17751782
I was planning on getting a FF lens such as the: 24-105 F/4L or the 24-70 f/4.

Why?

balfaro17 wrote in post #17751782
Are there going to be any issues with the Full frame USM lens on my crop sensor camera?

No.