Sigma 100-300mm f/4 EX DG HSM

photobitz wrote in post #6423003
That's odd... mine was lighning fast. More to do with the body you used it with perhaps?

Using a 1D and its definitely a tab slower on AI Servo. It's still fast but I did notice a difference taking some jet ski pictures in the summer. I love it being black too. Mind you I was using a CPol when I noticed this slight hesitation so it might have caused the slightly slower focus, so it did hunt a bit more with the lower light.. Its a beautiful lens and quality in my opinion doesn't get any better.

Shasta wrote in post #6426280
Using a 1D and its definitely a tab slower on AI Servo. It's still fast but I did notice a difference taking some jet ski pictures in the summer. I love it being black too. Mind you I was using a CPol when I noticed this slight hesitation so it might have caused the slightly slower focus, so it did hunt a bit more with the lower light.. Its a beautiful lens and quality in my opinion doesn't get any better.

Ahhh... yeah, the CPL would explain it. That would drop it to f/8 for focusing which is not ideal. You'll notice the same thing adding TCs.

^ Ah thats good to know then, it does make sense.

Shasta wrote in post #6426280
Mind you I was using a CPol when I noticed this slight hesitation so it might have caused the slightly slower focus, so it did hunt a bit more with the lower light..

AI Servo AF sampling rate is varied by the camera depending on the amount of light hitting the AF sensors. If you've just chopped the best part of two stops of light out by using a polariser it is going to slow to a crawl.

Stunning shot in more ways than one Brew!~

BrewsterPilot wrote in post #6447307

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Yeah the servo worked light years faster once I removed the filter, didn't realize how much it stopped it down.

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Shasta wrote in post #6493020
Yeah the servo worked light years faster once I removed the filter, didn't realize how much it stopped it down.

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Nice one

Save the CPL for landscapes

Awesome pics Guys! I've just managed to pick one of these up on ebay for £295, used but seeing as there £750 new I couldn't let it go for that price. It originally didn't sell due to the reserve but the guy second chanced it so I snapped it up, your pics really helped alot. Im really hoping I've made the right choice

Maximono wrote in post #6746125
Awesome pics Guys! I've just managed to pick one of these up on ebay for £295, used but seeing as there £750 new I couldn't let it go for that price. It originally didn't sell due to the reserve but the guy second chanced it so I snapped it up, your pics really helped alot. Im really hoping I've made the right choice

Rest easy. You'll enjoy

Thanks guys - this thread was what I needed to push me over the edge. Getting this lens for the long end on my D300.

BrewsterPilot wrote in post #6915162
Stunning images Hurricane!
Tallinn, if I am not mistaken?

Thanks for sharing,
-BrewsterPilot

Thanks a lot. And yes, it is Tallinn.

This lens is awesome. I used it on my 30D and loved it...now I use it on my 5D and love it even more! HSM is excellent though I wish sometimes there was a focus limiter.

The matte black crinkle finish is peeling off of mines. Has anybody else had this happen?

Canon EOS 5D
300mm, 1/1250 sec. @ F/4, ISO 50

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ishida wrote in post #6928713
The matte black crinkle finish is peeling off of mines. Has anybody else had this happen?

It's normal with all EX lenses. Lens coat (TM) is recommendable, there is even one in black color which mimics Sigma's original color.
Lovely pictures, by the way, the 2nd one is awesome.