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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 22 Dec 2009 (Tuesday) 17:03
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70-200L f/2.8 vs 70-200L f/4: The battle @ f/4

 
thaking
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Dec 24, 2009 08:49 |  #31

CheshireCat wrote in post #9256100 (external link)
Just because it is true it doesn't mean you will notice it if I do that only one time on a raw image :p

my point was that you may not notice it, but someone else may notice it...and the other point is that you said canonnoob was incorrect and i pointed out that he was indeed correct - rotating can degrade the image...




  
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CheshireCat
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Dec 24, 2009 10:42 |  #32

thaking wrote in post #9256619 (external link)
my point was that you may not notice it, but someone else may notice it...and the other point is that you said canonnoob was incorrect and i pointed out that he was indeed correct - rotating can degrade the image...

Wait a minute... I never said that canonnoob is incorrect !
And in fact both of you are correct.

BUT

I just want to make clear that worrying about a single image rotation, properly performed on the raw data, makes even less sense than worrying about the differences between these two lenses.
After all technicalities we know but should not worry about is the whole point of this thread ;)


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thaking
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Dec 24, 2009 12:15 |  #33

CheshireCat wrote in post #9257154 (external link)
Wait a minute... I never said that canonnoob is incorrect !
And in fact both of you are correct.

you're correct - it wasn't you...my bad...:o

CheshireCat wrote in post #9257154 (external link)
BUT

I just want to make clear that worrying about a single image rotation, properly performed on the raw data, makes even less sense than worrying about the differences between these two lenses.
After all technicalities we know but should not worry about is the whole point of this thread ;)

that's exactly right...




  
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ilumo
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Dec 24, 2009 14:07 |  #34

im wondering the same thing. I just bought a f/4.0L, and am trying to see if I need the 2.8. What do you think the DOF difference will be between 200mm at f/4 and f/2.8? Does anyone have any samples? other than the 1 stop diff, i dont see anything else that is better. Price is not a factor for me.


Body: Sony a7R IV
Glass: 50mm f/1.8 | 35mm f/1.4L USM | 16-35 f/4.0 IS USML USM | 24-70 f/2.8L II USM | 24-105 f/4.0L IS USM | 70-200 f/2.8L II IS USM | 85mm f/1.4L IS USM | 100mm f/2.8L IS USM | 24mm f/1.4GM | 70-200mm f/2.8GM | Samyang 85mm f/1.4 | Voigtlander 10mm f/5.6
Accessories: 430 EX II, 600 EX, tripods, umbrellas, and other goodies.

  
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blackhawk
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Dec 24, 2009 15:25 |  #35

ilumo wrote in post #9258067 (external link)
im wondering the same thing. I just bought a f/4.0L, and am trying to see if I need the 2.8. What do you think the DOF difference will be between 200mm at f/4 and f/2.8? Does anyone have any samples? other than the 1 stop diff, i dont see anything else that is better. Price is not a factor for me.

When you get into shadows it's easy to run out of light. One f/stop almost doubles the light gathering capability of the lense which helps put it into prospective.
200mm is where the f/2.8 is the weakest, but still very usable. Most use the 2.8 version wide open much of the time, and many like myself seldom stop it down. So yeah, on both counts there is a difference.

IMAGE NOT FOUND
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CAL ­ Imagery
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Dec 24, 2009 16:48 |  #36

rijndael wrote in post #9252169 (external link)
Thanks. I'm familiar with the numbers @ the distances I want to shoot at. f/4 will suite my needs. For a quick and dirty look at the numbers I use this: http://www.dofmaster.c​om/doftable.html (external link)

Other than the added AF precision, I'm struggling to significantly nudge myself in either direction.

The aperture and AF are the only two reasons to get the 2.8 over the 4. But, those are two very big differences. Once again, look up DoF and see if that's important to you.


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ed ­ rader
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Dec 24, 2009 16:55 |  #37

nphsbuckeye wrote in post #9258716 (external link)
The aperture and AF are the only two reasons to get the 2.8 over the 4. But, those are two very big differences. Once again, look up DoF and see if that's important to you.

except if you don't need the extra stop then size, weight, 4-stop IS, price, and superior IQ are five very compelling reasons to opt for the sharpest zoom lens canon makes :D.

ed rader


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5D4, 80d, 16-35L F4 IS, 24-70L II, 70-200L F4 IS II, 100-400L II, sigma 15 FE, sigma 14 f1.8 art, tc 1.4 III, 430exII, gitzo 3542L + markins Q20, gitzo GT 1545T + markins Q3T, gitzo GM4562

  
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CheshireCat
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Dec 24, 2009 19:37 |  #38

ed rader wrote in post #9258735 (external link)
except if you don't need the extra stop then size, weight, 4-stop IS, price, and superior IQ are five very compelling reasons to opt for the sharpest zoom lens canon makes :D.

... ?!


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KRUSH
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Dec 24, 2009 19:56 as a reply to  @ post 9251657 |  #39

I think it's up to 654,732 times that this topic has come up.


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ed ­ rader
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Dec 24, 2009 21:21 |  #40

[QUOTE=CheshireCat;925​9331[B]]... ?![/quote]

MTF (resolution)

The Canon EF 70-200mm f/4 USM L IS is the very best zoom lens tested to date in Canon mount. The resolution figures (center/border) at all focal length and all tested aperture settings are nothing short of stunning and also as good as the best fix-focals in this range. At f/11 thereĀ“s the usual decline in quality due to diffraction - this is a physical limit. Truly remarkable.

http://www.photozone.d​e …-l-is-test-report--review (external link)

ed rader


http://instagram.com/e​draderphotography/ (external link)
5D4, 80d, 16-35L F4 IS, 24-70L II, 70-200L F4 IS II, 100-400L II, sigma 15 FE, sigma 14 f1.8 art, tc 1.4 III, 430exII, gitzo 3542L + markins Q20, gitzo GT 1545T + markins Q3T, gitzo GM4562

  
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CAL ­ Imagery
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Dec 25, 2009 00:29 |  #41

ed rader wrote in post #9258735 (external link)
except if you don't need the extra stop then size, weight, 4-stop IS, price, and superior IQ are five very compelling reasons to opt for the sharpest zoom lens canon makes :D.

ed rader

The 2.8s are far from soft. And of course nothing you say matters if you need a fast lens. Here are two pictures, including a crop, that show the lowly 7-2 2.8 is far from chopped liver and really, only pixel peepers will tell a difference between lenses, no matter what laboratory tests tell.


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ed ­ rader
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Dec 25, 2009 01:19 |  #42

nphsbuckeye wrote in post #9260262 (external link)
The 2.8s are far from soft. And of course nothing you say matters if you need a fast lens. Here are two pictures, including a crop, that show the lowly 7-2 2.8 is far from chopped liver and really, only pixel peepers will tell a difference between lenses, no matter what laboratory tests tell.

yeah if if if... i thought i already addressed that :D?

ed rader


http://instagram.com/e​draderphotography/ (external link)
5D4, 80d, 16-35L F4 IS, 24-70L II, 70-200L F4 IS II, 100-400L II, sigma 15 FE, sigma 14 f1.8 art, tc 1.4 III, 430exII, gitzo 3542L + markins Q20, gitzo GT 1545T + markins Q3T, gitzo GM4562

  
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albion14
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Dec 25, 2009 04:02 |  #43

Well done to the person who started this thread.

I just bought the 70-200 F2.8 non IS last week,so was most interested in this test.

I was worried after purchase ,about what i hear about the F 4 being sharper.well it

is like the fellow who made the comment about various brands of shavers-does it really

matter which one you get,there all going to be sharp.

I made the decesion on the fact that i will be using the lens in low light situations regularly.

If that is'nt an issue,buy the F 4,all up no matter which version of the 70-200 you own or buy

you are going to get a very good,capable lens,i do'nt think i have ever seen a negative comment on

any of these lens,appart from IS issues.

regards A14


Canon 50D and 450D, lenses 10- 22 mm wide angle 17-55 F 2.8 L, 70-200 F 2.8 L, 400 F 5.6 prime. 60 mm Macro F 2.8, ex 430 flash.

  
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AMD87
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Dec 25, 2009 06:37 |  #44

ilumo wrote in post #9258067 (external link)
im wondering the same thing. I just bought a f/4.0L, and am trying to see if I need the 2.8. What do you think the DOF difference will be between 200mm at f/4 and f/2.8? Does anyone have any samples? other than the 1 stop diff, i dont see anything else that is better. Price is not a factor for me.

Don't have a DOF shot from an F4 but heres one from a 2.8 at 2.8 200mm straight from the camera.

IMAGE: http://farm5.static.flickr.com/4040/4208416013_743d76ce98.jpg
IMAGE LINK: http://www.flickr.com …/42427406@N05/4​208416013/  (external link)

Andrew
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Canon EF-S 18-55mm IS, Canon 50mm 1.8, Canon EF-S 55-250 IS , Sigma 70-300mm, Canon EF 70-200mm f/2.8L IS USM, Canon 50mm 1.4, Tamron 17-50mm F2.8 XR Di II VC
Flickr (external link)

  
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blackhawk
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Dec 25, 2009 08:57 |  #45

AMD87 wrote in post #9260865 (external link)
Don't have a DOF shot from an F4 but heres one from a 2.8 at 2.8 200mm straight from the camera.
QUOTED IMAGE
IMAGE LINK: http://www.flickr.com …/42427406@N05/4​208416013/  (external link)

What is that?

edit: my bad! I was looking at it on my laptop. Don't ask!:rolleyes:


You got to know when to hold 'em, know when to fold 'em
Know when to walk away and know when to run
You never count your money when you're sittin' at the table
There'll be time enough for countin' when the dealing's done

  
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70-200L f/2.8 vs 70-200L f/4: The battle @ f/4
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