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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 30 Aug 2007 (Thursday) 22:57
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Lenses for motorsports

 
andrewc
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Sep 02, 2007 12:27 as a reply to  @ post 3845774 |  #31

I've got a 100-300 f4 EX and I'm really pleased with it on a 30D body.


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EORI
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Sep 02, 2007 12:59 as a reply to  @ post 3845774 |  #32

Glenn, I see you have the Sigma 120-300 f/2.8. How do you like it?




  
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Cadwell
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Sep 02, 2007 13:08 |  #33

smcclelland wrote in post #3845774 (external link)
Cadwell, thanks for the post. I tested a copy of the 100-300 EX HSM this morning at my local camera shop and found nothing really wrong with the lens to be honest. AF was spot on and even in AI Servo there was no noticeable lag. The IQ was stellar and sharpness was spot on as well. I assume the other motorsport photographers didn't like the push-pull zoom or was it based on other things as well? Either way, I've got nothing against Sigma and I believe the 100-300 f4 w/ 1.4x TC will provide me with the reach I need for the Formula One next season.

To be honest I don't think the zoom mechanism came into it. I might be a bit odd but I actually like the push pull zoom. The main problem is that in the UK we are not blessed with good light very often and an f/5.6 lens struggles for AF accuracy in a way that an f/4 or f/2.8 lens doesn't. Remember that AI Servo tracking sampling rates fall off as the light reaching the AF sensor decreases and you get half as much light hitting those sensors at f/5.6 as you do at f/4. I'll happily snap away with the 100-400 on bright days but when the light starts to fade, things go pear shaped way too quickly.


Glenn
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Cadwell
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Sep 02, 2007 13:09 |  #34

EORI wrote in post #3845963 (external link)
Glenn, I see you have the Sigma 120-300 f/2.8. How do you like it?

If it broke I'd buy another in a heartbeat. There would be no thought involved, just an automatic reach for the credit card.


Glenn
My Pictures: Motorsport (external link)/Canoe Polo (external link)/Other Stuff (external link)

  
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ruchad1
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Sep 02, 2007 13:42 |  #35

cosworth wrote in post #3831140 (external link)
my 300 2.8 IS always goes to the track with me.

you ever use mode 2 for yer panning?


chadruhl.com (external link)

  
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smcclelland
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Sep 02, 2007 14:56 |  #36
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Cadwell wrote in post #3846001 (external link)
To be honest I don't think the zoom mechanism came into it. I might be a bit odd but I actually like the push pull zoom. The main problem is that in the UK we are not blessed with good light very often and an f/5.6 lens struggles for AF accuracy in a way that an f/4 or f/2.8 lens doesn't. Remember that AI Servo tracking sampling rates fall off as the light reaching the AF sensor decreases and you get half as much light hitting those sensors at f/5.6 as you do at f/4. I'll happily snap away with the 100-400 on bright days but when the light starts to fade, things go pear shaped way too quickly.

Makes sense, most motorsports events here in Canada are graced with pretty nice weather unless you find yourself out west in vancouver during winter where it just rains a lot.


Shawn | Flickr (external link) | Blog (external link)
There used to be Canon gear here but it disappeared.

  
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tomekay
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Location: Not so Sunny Kent...England
     
Sep 06, 2007 11:25 |  #37

Cadwell wrote in post #3846001 (external link)
To be honest I don't think the zoom mechanism came into it. I might be a bit odd but I actually like the push pull zoom. The main problem is that in the UK we are not blessed with good light very often and an f/5.6 lens struggles for AF accuracy in a way that an f/4 or f/2.8 lens doesn't. Remember that AI Servo tracking sampling rates fall off as the light reaching the AF sensor decreases and you get half as much light hitting those sensors at f/5.6 as you do at f/4. I'll happily snap away with the 100-400 on bright days but when the light starts to fade, things go pear shaped way too quickly.

I find your comments very interesting as I have thread (and I think you have probably commented on it already) with the same question.

Before today, I was hell bent on buying the Sigma 100-300 EX DG +1.4 (I think I will need more than 300mm). Then today looking at another thread I dcided on the 100-400 L IS USM and nearly bought one on my lunch break...but decided not to.

I dont know whether anyone on this section would know if its ok (The Sigma that is) for wildlife also, as it hasnt got OSD.

Im guessing by all comments that the Sig edges the Canon on IQ for motorsports (and yes, I live in the uk).

.....Or Sigma 70-200f2.8 + 2 Convertor (does the f stop equal the f4 + 1.4 though?)

Would ideally like a lens that could do both.

Cheers
Bill


You Lives and Learns!!!

Canon EOS 20D/Sigma 24-70 f2.8 EX DG Macro/Sigma 100-300 f4 EX DG HSM

  
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Lenses for motorsports
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