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Input:
Question: Would this be good for hockey- I have difficulty finding the right color balance and a lens that is fast enough.
Document: The throw is not too long or short (120 degrees), with just enough sensitivity to make minute adjustments. It does help that the focus ring is closer to the body since I naturally hold the lens at the base. One thing that may be the reason for not including the tripod mount was that, with it mounted, it may get in the way of reaching the focus ring since the mounting area is just right behind it. The autofocusing speed is very fast and silent.
Not expecting miracles in low light but I think it's the fastest lens I have used in this class. No accuracy problems right out of the box and that matters to me not having MA on my body.Despite my praise there are a couple of cons:1. )swapping the zoom rings isn't conducive to good hand holding technique in my opinion. I can work with it but on a longer lens it would be a no go.2. )no tripod collar.
Everyone WAS right when they said these lenses were great.EVERYTHING is magnificant... the lens is quiet, quick as can be and I love the ability to fine tune the focus while still in automatic focus. The inside shots were amazing... this is a huge, old building without the greatest lights but my shots came out with excellent contrast and color and no noise at all.The zoom is smooth as can be and hand holding coupled with the IS is a breeze.
This was my first professional grade buy of this lens and it met all my expectations. It was so fun to use and amazing how close I could get to object from those great distances. The auto-focus was so fast too. I just had to get it right on the spot i wanted and boom it was focused.
The lens always drops a few degrees. After a few attempts I can come pretty close to having the 'drop' settle the lens where I want it to, but it would be so much easier if the center of balance were near the mounting point--as it would be in the collar--than it is with the mounting point on the camera.
I had this lens for about six months now and I use it for landscape and sometimes my walk-around lens. Similar to what others had said on reviews here, this lens is superb. It is very sharp at all focal length and the color rendition is spot on. I've tested it on a 5D mkII and 60D and the results are equal. The focusing is very fast and silent, it's one of the fastest focusing lens I own.
Included in the order was the 70-300 L f4 IS II.A very long story short--in the studio and outdoors for a model shoot (portrait and environmental--waterfall and garden backgrounds), this lens ROCKS! Very fast autofocus, sharp at f4, but fantastic at f8, great bokeh, super color and contrast. I could go on but why?This is a super lens.
The white color of the lens is a "plus" because, I know from experience, the summer sun can really heat up a black lens in a hurry, and potentially damage a very expensive piece of glass -- if ya know what I mean.I find the the Canon EF 70-300mm f/4-5.6L IS USM UD Telephoto Zoom Lens to be very fast...even at 300mm using continuous shooting setting.
I've been researching telephotos lenses for some time, looking for the right one for me. I've used other lenses in the past and the telephotos I already owned weren't cutting it in terms of quality.Finally, I settled on this beast a couple of weeks ago and I couldn't be happier. The build is fantastic. It's heavy enough to use as a weapon in combat. Of course, this makes long-term handheld shooting a little tiresome after some time. But the image quality is outstanding.
* Heavier than 24-105mm for comparison purposes (twice the weight? )* Heavier than 17-40mm definitelyNotes:* The zoom and focusing ring are inverted. It's not a nuisance. You just have to get used to it (just like getting used to its weight). After using it for 5 minutes, it feels normal already. Sometimes you even wonder which is really the right position. * White color and size attracts attention. If you don't like to be noticed, don't use this.
Answer: Color balance is a camera or post-process issue. It is never a lens issue. Make sure you read up and understand your camera's white-balance options. Then insure you choose the proper profiles on both camera and post-processing software  and equipment. The lens itself is an excellent choice for indoor sports when paired with a good quality camera such as Canon 70D that has high ISO capability, and/or a high quality focused flash (preferably both). It is quite heavy, so determine if that is an issue for you.