Love using the 17-55 2.8 IS during situations where you're caught off guard. Being able to handhold the camera due to the lens' IS system without the jello is pretty sweet :).

I bought a Sigma 17-50mm f2.8 with IS. It's in my bag.. but the zoom range isn't big enough. I will test it out tonight at wedding =)

Nothing is faster than 2.8 with zoom, if you want fast, I get a Sigma 30mm F1.4 and Rokinon 85mm F1.4, those are my two lens I use all the time at reception, you won't even need light anymore with those.
Koi I also love the Rokinon 85mm. The only thing I don't like about it is that it doesn't have IS, so I'm tied down to a tripod position much of the time with it.
I do shoot with a DVMulti Rig with body pod for full time steady support. But a lens without IS, tends to pickup mico vibrations too easily.

But I do agree, the Rokinon 85mm 1.4 is a great medium closeup lens to have for low light shooting. And love the tactile feel of a full manual lens. Nice and smooth.

Currently my crop of lenses are:

Tamron 17-70mm 2.8 VC
Canon 50mm 1.8
Sigma DC OS 18-200mm 3.5-6.3
Rokinon 85mm 1.4
MIR 28mm 1.4

The Sigma lens is good, but low light isn't. I mainly got this lens for shooting in good light and the onboard IS. As I didn't have the money at the time for the Canon 18-200 IS F4 or F2. For the most part I use the Tamron lens as my normal walk around lens and love it. I also will use the Sigma for a walk around lens as well in daylight.

But for low light I would use the Tamron 2.8, Rokinon 1.4, and Canon 50mm 1.8. Since I have the Tamron, I don't really need a fast 30mm prime, but wouldn't mind one.

BTW, I'm eying the 16mm 2.8 Zenitar lens. Even though it's a fisheye, on a cropped sensor camera you don;t get much barrel distortion with it. And I think that it would look wonderful on a glidecam or moving camera shots of a room, landscapes, or decorations. FISHEYE ZENITAR 2.8/16 LENS for Canon (http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110363671029&ssPageName=STRK:MEWAX:IT)

Taky, I too really like the 17-55 canon

I also found the Sigma 30 1.4 to be my go to lens if scenes are really dark. It's AMAZING what you can do with that lens. I didn't get the Canon 50mm cause the ring is a piece a junk to me.

I actually love the crop factor when it comes to ceremonies. My 7D can get close then my other videographers 5D so the 70-200 is great!!! I actually think you need a longer lens like a 300 or 400mm for down the middle of the aisle shots. You could get a close up of them putting the rings on. Sometimes it's hard to get it from the sides.

Now I need a Macro Lens. 100mm is my next purchase. You can't get good ring shots without one.

Has anyone ever compared the Rokinon 85mm f1.4 to Canon 85mm f1.8? Both are at the same price range and have gotten good reviews.

I also recently purchased a Canon 100mm f2.8 for my macro (I love macro!!) but planning on using it as a portrait lens too.. not sure if this is recommended, but I tried it out last week and am happy with the image quality on portrait.

With the Tamron I found that the focus ring is not as smooth so I avoid using them for big rack focusing. I own a Super Takumar 50mm f1.4 which is a great lens but its too tight on 7D, so I bought the Canon 28mm f1.8.. still waiting for it to arrive so can't comment much on it

Kelly, I think you can still get good ring shots without macro lens. It does help if you want to get a closeup shot of the diamond, but not all ring shots must be like that IMO.

Michael, I would recommend a Tokina 11-16mm f2.8 for your glidecam. I've been using it lately and it is just perfect on my 7D! You get a good ultra wide and a wide out of it and best thing is that it doesn't shift centre of gravity when zooming so I dont have to keep adjusting my merlin setting.

Has anyone ever compared the Rokinon 85mm f1.4 to Canon 85mm f1.8? Both are at the same price range and have gotten good reviews.
Lenses compares - Optyczne.pl (http://lenstip.com/porownaj.php?co=obiektyw&ile=2&add0=13&add1=834)

The Rokinon is perfect for video. Another great thing about full MF lenses is they are great for time lapses (no flicker).

"Has anyone ever compared the Rokinon 85mm f1.4 to Canon 85mm f1.8? Both are at the same price range and have gotten good reviews. "

I have both and it is sharper than my Canon 85mm F.1.8 at wide open, that is the only F stop I compared cuz it is my low light lens and all I care about is F1.4, I still have my Canon for taking still.

Johannes, the Canon 85mm 1.8 will produce a be a sharper image compared to the Rokinon 85mm 1.4.
The big difference between the two lenses though, is that the Canon 85mm is an auto lens, so it has AF capability.

The Rokinon 85mm is a full manual lens. As such the Rokinon will have no AF capability, as well as iris confirmation with the camera. So aperture control done from the lens, not the camera. that being said, this is great for video, as you get smoother aperture control to your image, as well as a nice tactile focus ring for smoother manual focusing.

A manual lens might be better suited for video. But if you want a lens that does both, the Canon 85mm will be a better bet. As you can get sharp instantaneous AF for fast moving stills, and good glass for video.

So if you want an 85mm for video only, the Rokinon might be a better choice, due to it's manual features,a and much lower price point. But if you want a lens for both video and still, then I would go with the Canon.

Thanks guys, I guess Canon would suit me best then. No plan on buying it (yet!) but most probably be the next lens I'd consider so it's always good to know. I personally can't live without AF, due to the fact that I love photography as well and manual focusing at low aperture for photo is just painful. I've practiced with my Super Takumar.. and 8 out of 10 photos are usually horribly out of focus!