Which lens to go with

[privatebydesign]

Mark I is just fine as long as you don't shoot at 200mm 2.8. Very unsharp. And the weight is a big factor. At first I thought that I was a built guy and the weight wouldn't be a problem, but handholding it for a 3h long show made me think otherwise.

That is utter rubbish, mine is razor sharp at 200 and f2.8.

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=103&Camera=453&Sample=0&FLI=4&API=0&LensComp=404&CameraComp=453&SampleComp=0&FLIComp=4&APIComp=0

Might lack a little contrast, but the resolution is there.

 

[RLPhoto]

I'd stick with the F/4 until you start needing that f/2.8. A stop is alot more light but also alot more weight to lug around for something your not being paid for.

 

[terminatahx]

The 2.8 versions of the 7-200 are in a totally different league than the f4. Get it.

 

[Keem]

For shooting people f2.8 version will allow better bokeh/subject isolation
For landscapes if you are travelling f4 will be better since it is smaller/lighter; more portable

If you do not use teleconverters and do not pixel peep the IQ of both lenses are identical. If you are planning to use teleconverters mkII version of f2.8 is a better choice.

For landscapes keeping f4 and buying the 14mm Rokinon seems to be a better choice.
For portraits you may need faster glass (you can also consider a fast 85mm Rokinon)

 

[wickidwombat]

since you have the f4 IS consider getting the 135 f2L for when you need extra light its a stop faster again than the f2.8 and has far superior IQ to the mk1 and I feel superior IQ to even the mk2 I got mine second hand for $700 a couple of years old.

Shooting people at functions you want 1/100 shutter speed anyway to keep them reasonably sharp so the F2 of the 135 will be a bigger help. (Unless of course you are dragging the shutter with flash and can control ambient spill light to a certain degree.

If I were in your situation knowing what I know now and owning these lenses that Is what I would do (I have the 70-200 f2.8 MkII) its big and heavy and I don't use it as much now since getting the 135L

 

[Razor2012]

I love shooting events and couldn't live without my 70-200 2.8 II. IMO if you're not shooting portraits and landscapes (for example), you do need that extra speed. No time to play around.