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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 29 Oct 2013 (Tuesday) 11:03
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Canon 70-200f4 non-IS vs Tamron SP 70-200mm f/2.8 Di VC USD

 
Sirrith
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Nov 04, 2013 05:30 |  #31

hennie wrote in post #16410964 (external link)
I think you mean half the shutter speed?

No, I meant double. He had the f4 version so he couldn't open up to f2.8, so he needed to see if having double the shutter speed he had would have been enough.


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Bakewell
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Nov 04, 2013 07:54 |  #32
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stang67 wrote in post #16422858 (external link)
Also, the one thing I would miss about my 70-200mm f4 when I sell it for the Tamron, is the white colour. I seem to be the only one. I love how it stands out compared to pretty much every other lens and that makes me want to take more and more pictures with it :lol: It just looks so professional (even if it is tiny especially compared to the 2.8 versions).

HHHmmmm....I wonder if the "bad" guys also love seeing that big, white EXPENSIVE lens.


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richp
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Nov 04, 2013 08:47 |  #33

Sibil wrote in post #16422841 (external link)
The reported softness at 200mm is the only thing that is stopping me from considering this lens.

Also, are you saying that at f/4 the Tamron is sharper than the Canon 70-200 f/4?

Yes, the Tamron is sharper at f4 and above than my Canon lens was.


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davidmtml
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Nov 04, 2013 11:57 |  #34

Sirrith wrote in post #16422866 (external link)
No, I meant double. He had the f4 version so he couldn't open up to f2.8, so he needed to see if having double the shutter speed he had would have been enough.

No...I think you meant half.

If he had an shot 1/100 at f4, the equivelent exposure at f2.8 would be 1/200, or HALF the shutter speed. Doubling the shutter speed would be 1/50.

You could say the shutter speed was twice as fast, or "doubly" fast, but you are actually cutting the duration that the shutter was open in half.

I think everybody is meaning the same thing here...you are just using slightly off terminology.




  
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Talley
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Nov 04, 2013 12:45 |  #35

davidmtml wrote in post #16423616 (external link)
No...I think you meant half.

If he had an shot 1/100 at f4, the equivelent exposure at f2.8 would be 1/200, or HALF the shutter speed. Doubling the shutter speed would be 1/50.

You could say the shutter speed was twice as fast, or "doubly" fast, but you are actually cutting the duration that the shutter was open in half.

I think everybody is meaning the same thing here...you are just using slightly off terminology.

I always call 1/1000 faster than 1/500 because shutter although tied into gathering light mainly controls motion. and 1/1000 is faster. So I feel you are backward. Not saying you are wrong but I will stick to what I just said and you stick to what you said.


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davidmtml
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Nov 04, 2013 12:59 |  #36

Talley wrote in post #16423722 (external link)
I always call 1/1000 faster than 1/500 because shutter although tied into gathering light mainly controls motion. and 1/1000 is faster. So I feel you are backward. Not saying you are wrong but I will stick to what I just said and you stick to what you said.

I can definitely see it both ways.

Let's just all agree that 1/1000 is faster than 1/500 and leave it at that :)




  
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hennie
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Nov 04, 2013 13:07 |  #37

Sirrith wrote in post #16422866 (external link)
No, I meant double. He had the f4 version so he couldn't open up to f2.8, so he needed to see if having double the shutter speed he had would have been enough.

Okay, half the shutter speed is double the exposure time,
and double the speed is half the exposure time.
Confusion cleared.




  
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stang67
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Nov 04, 2013 17:04 |  #38

Bakewell wrote in post #16423093 (external link)
HHHmmmm....I wonder if the "bad" guys also love seeing that big, white EXPENSIVE lens.

A 1D could be a pretty effective weapon against those people ;)


Canon 6D - Canon 1D Mk III - 70-200mm f/2.8L IS II | Σ 105mm f/2.8 | Canon 400mm f/5.6L | Σ 35mm f/1.4 | 17-40mm f/4L
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Bakewell
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Nov 04, 2013 17:23 as a reply to  @ stang67's post |  #39
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I would rather not be looking over my shoulder all the time...


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stang67
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Nov 04, 2013 17:40 |  #40

This is kind of going off track haha, but I've never once felt (or seen) someone eyeing my gear off. That and I'm always with someone else when I do happen to use my 70-200 and it's usually at a big event (Formula One, V8 Supercars etc) where it won't exactly be easy to steal a lens without at least one person seeing them do it.


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Tanglefoot47
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Nov 04, 2013 18:11 |  #41

I am so happy with my Tam and it does very well at 2.8, I have owned all the Canon's 70-200's and this lens is just as sharp at 2.8 IMO the MKII is slightly sharper




  
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Talley
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Nov 04, 2013 18:30 |  #42

Tanglefoot47 wrote in post #16424562 (external link)
I am so happy with my Tam and it does very well at 2.8, I have owned all the Canon's 70-200's and this lens is just as sharp at 2.8 IMO the MKII is slightly sharper

Thank you for your input.


A7rIII | A7III | 12-24 F4 | 16-35 GM | 28-75 2.8 | 100-400 GM | 12mm 2.8 Fisheye | 35mm 2.8 | 85mm 1.8 | 35A | 85A | 200mm L F2 IS | MC-11
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Lucy ­ Brown
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Nov 04, 2013 19:37 as a reply to  @ Talley's post |  #43

I bought the Tamron Saturday. I test shot it with my SL1 at my local shop, went home and reviewed the test shots, got back in my car and drove back and made the purchase. It's mounted on my 5d3 now. I think the IQ on par if not better in some cases than the Canon. I also love the savings over the Canon and the fact that its black. I'm not a big fan of 3rd party anything but this lens is winner and the price is right.




  
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Canon 70-200f4 non-IS vs Tamron SP 70-200mm f/2.8 Di VC USD
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