I need a new lens for video, help

I just purchased a 70D and I love it so far. I was upgrading form a 40D. I primarily shoot stills but I want to dabble in a little video just to mess around a bit. The problem is none of my lens are suited really well to video. I have a Canon 70-200 f4L, canon 85mm 1.8 and a Tamron 17-50 VC ( i was banking on this one being used for a bit a video since it has image stabilization but apparently the 70D does not support it for video).

So I need a new lens, I am not trying to spend much here since I primarily shoot stills, the video will be just for personal fun. I have been looking at getting the new nifty 50 with STM, or perhaps the 24mm or 40mm 2.8 pancake lens. However these do not have IS which I probably need for hand held shots.

So what would be a good lens for video that does not break the bank?

Thanks Roshan

The 18-55 STM or 18-135 STM would probably be your best bets if you want stabilization. You can find them brand new typically taken out of kits for $100 and $300, respectively.

Those sound like good options, what do you think of the 35mm f2 IS usm, or 24mm 2.8 IS lens for video?

I use the 35 f/2 IS on my 5DIII for video and I'm very pleased with it. I've also used it a few times on my gf's T3i and it seems to work very nice on a crop camera as well. I actually prefer it to the Sigma 35 ART for video, because I find the manual focus ring on the 35A difficult to use.

Also...they are only just announced, but you might want to wait for more info on the Tamron 35 1.8 and 45 1.8 VC primes (unless the 70D doesn't support VC in these lenses either - not sure).

The 35mm would be my choice between the two- just know that the focus motor will be audible on the video if your focus needs to change. That's what the STM motors are specifically designed for- to reduce the focus noise while you take videos.

http://explore-lenses.usa.canon.com/s​tm-lens-stepper-motor.html

bacchanal wrote in post #17693742
I use the 35 f/2 IS on my 5DIII for video and I'm very pleased with it. I've also used it a few times on my gf's T3i and it seems to work very nice on a crop camera as well. I actually prefer it to the Sigma 35 ART for video, because I find the manual focus ring on the 35A difficult to use.

Also...they are only just announced, but you might want to wait for more info on the Tamron 35 1.8 and 45 1.8 VC primes (unless the 70D doesn't support VC in these lenses either - not sure).

I might have to take a look at those tamrons, its not the VC that's not supported on the 70D, I can film for a few minutes then the video will suddenly stop and I will get an error saying the lens is no longer attached, which it obviously is. This is a known error with this lens for some reason. I am not sure if it is also the case with other tamrons.

Ok here is another option what do you guys think,

I can go buy the 24mm 2.8 stm, canon has a labor day sale going on right now on that lens and the 40 2.8 stm. Once i get that one i can sell my Tamron 17-50 VC, and purchase the Canon EF-S 17-55 IS usm. Would that be a better option?

If you like using primes I don't think you can go wrong with the 40 and 28. STM is the new AF motor that's going to be the best available for cams like 70D for some time to come. They're reasonable fast and inexpensive. I myself don't own any primes other than a macro, see "shooting styles" below.

I have the Canon 17-55 f2.8 and it is a wonderfully versatile lens for very wide angle to slightly telephoto. Picture quality is excellent, you've probably heard it favorably referred to as L-lens quality for EF-S. 17mm is a must-have for my style of shooting; it gets wide enough for wide looks at interiors, though I have a couple wider lenses that come out too when needed. But 17 is quite reasonable. No way could I stop at 28mm on crop sensor.

Me, I like the imagery, the wide look, and the f2.8 constant. The only con is that I wish it got a bit longer for closeups. If it could run 17-85 at f2.8... but no.

My solution was to add the Sigma 50-150 f2.8 OS to the lineup, but it is the least-used lens I own.

Some shooters who want to only have one lens on a 70D or C100 DPAF are gushing about the 18-135 STM. Of course the STM works very well with the autofocus on these cams. For video, STM may be a big enough deal to forget about the non-constant aperture and lost stops at f3.5-5.6.

And it's certainly true that for many shooting styles, changing lenses in the middle of a video shoot is difficult or impossible. If you're in control of the entire shoot, primes are great. If you have to respond to the action when it happens, you don't want to be changing lenses.

Me, I hope there will be an STM version of the 17-55 someday!