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FORUMS Cameras, Lenses & Accessories Canon Digital Cameras 
Thread started 09 Apr 2008 (Wednesday) 15:50
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One stop trade...

 
Mr. ­ Clean
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Apr 09, 2008 15:50 |  #1

Would you trade one stop of light in a lens, for one stop better ISO performance on a body?


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dave ­ kadolph
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Apr 09, 2008 17:23 |  #2

One stop in the lens--no question--IMO


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liquidhands
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Apr 09, 2008 17:27 |  #3

All else equal, the one stop in the lens.
seems like you get more flexibility with DOF.


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JeffreyG
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Apr 09, 2008 18:16 |  #4

Mr. Clean wrote in post #5294825 (external link)
Would you trade one stop of light in a lens, for one stop better ISO performance on a body?

Depends on the starting place of the theoretical lens. F/2.8 to f/2 is more useful than f/1.4 to f/1.0.


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JC4
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Apr 09, 2008 18:37 as a reply to  @ JeffreyG's post |  #5

Depends what I'm shooting. Creative, then the lens for DOF control. When I'm already stopping down for greater DOF(portraits, landscape...), then ISO. Sometimes I'd want both :)


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Perry ­ Ge
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Apr 09, 2008 18:59 |  #6

Jeffrey and John basically said all that needs to be said about this topic :D. I agree with them 100%. Ideally, both of course.


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Mystwalker
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Apr 09, 2008 19:07 as a reply to  @ Perry Ge's post |  #7

Get both that camera and that lens.

If I had to make choice - I would choose improved lens.




  
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wallybud
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Apr 09, 2008 19:14 |  #8

someone can elaborate but lets say your shooting at iso 1600 and your given another stop of light wouldnt that allow you to drop the iso to 800? or should i have done my math;)

however if this is close to correct, my 40D an produce IQ at 800 that is very very respectble so in turn youd have better iso control with the extra stop?


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Mr. ­ Clean
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Apr 09, 2008 20:35 |  #9

Well the new cameras these days are so good with ISO performance...DOF aside, you could move from a Mark II + 300 f2.8 to a Mark III 300 f4 and experience equal shutter speed performance do to the cleaner high ISO's...
Kind of the other way around. Give up one stop of light on a lens, gain it in higher ISO performance.


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ed ­ rader
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Apr 09, 2008 20:40 |  #10

Mr. Clean wrote in post #5296692 (external link)
Well the new cameras these days are so good with ISO performance...DOF aside, you could move from a Mark II + 300 f2.8 to a Mark III 300 f4 and experience equal shutter speed performance do to the cleaner high ISO's...
Kind of the other way around. Give up one stop of light on a lens, gain it in higher ISO performance.

my last two cameras give me super clean prints @ iso 1600 with no NR needed and are very good @ iso 3200.

and you know i love the 70-200L f4 IS :D.

ed rader


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Mr. ­ Clean
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Apr 09, 2008 22:53 |  #11

It's hard to avoid the lure of the Mark III, it's got a certain 'pop' and clarity I just don't see in other Canon bodies that's for sure. A Mark II n and 120-300 sold could be a Mark III and a 100-300 f4 (with a couple extra bucks)...


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One stop trade...
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