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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 18 Nov 2006 (Saturday) 23:17
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How sharp is the 300L f/4 IS wide open?

 
wiselion
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Location: Albany,NY
     
Nov 18, 2006 23:17 |  #1

Just wondering how sharp this lens is shot at f/4. I may want to get this lens for hiking around.

Mike


Canon 30D w/ battery grip, Canon 70-200 f/4, Sigma ex 100-300 f/4, Canon 1.4X Teleconverter, Canon 2.0X MK2 Teleconverter,Canon RS-80N3 remote switch, Manfrotto 3021 pro tripod, Manfrotto 3047 Panhead, Manfrotto 679B monopod, Lowepro 600 AW backpack,Quantaray U-100 backpack,Visible dust sensor cleaning kit.
Incredible wife to put up with my hobby...:D

  
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Tsmith
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Nov 18, 2006 23:19 |  #2

I don't have one but it doesn't take long to find some super excellent results with this lens.




  
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Lenty007
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Location: Ghent, Belgium
     
Nov 18, 2006 23:36 |  #3

One sample from this lens in "bad" weather conditions.
Time : 10 november 2006 11:46
Body : Canon 350d at 100 iso
Shutter : 1/160
Apperture : 4
With IS on "1"
A tiny bit of post-sharpening & contrast
The woman received the picture on a format 20x30cm and was VERY pleased :lol:
It was a picture taken with a bit of a risk, but there were no strings attached so I could go for it. Came out very well if you ask me.
Greetings from Ghent
Alain,
---------------
350d - Sigma 18 200 - Canon 300 F/4 - Canon 500 F/8 - Canon x1,4II


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sonnyc
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Nov 19, 2006 00:39 |  #4

I have the non IS but it should be very similar.

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BradT0517
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Nov 19, 2006 00:41 |  #5

I would have to say that this lens better be amazing


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cjm
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Nov 19, 2006 01:10 |  #6

As sharp as sharp can be! At least with my copy. I only use it wide open at f4 and am always blow away with the IQ. Then when I attach a 1.4x TC to it and have a 420mm f5.6 IS the IQ is virtually the same as with out the TC except the focus speed goes from Canon L speed to Canon USM speed. ;)


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PetKal
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Nov 19, 2006 06:45 |  #7

wiselion wrote in post #2283352 (external link)
Just wondering how sharp this lens is shot at f/4. I may want to get this lens for hiking around.

Mike

At f/4 the non IS version is sharper than the 300 f/2.8 I had.
The IS version of the f/4 lens is perhaps very slightly inferior, probably in the 300 f/2.8 ballpark.
Now, you go and chew on that :lol:

If you can not hand-hold a 300 mm lens steady even at 1/300 sec, then get yourself the IS version.....most people are much better off with it in the long run.....besides, a remarkably low MFD of 1.5 m is another asset of the IS version.


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condyk
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Nov 19, 2006 06:50 |  #8

I'd say 8/10, if 10 is Macro sharp. Sweet lens.


https://photography-on-the.net …/showthread.php​?t=1203740

  
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JohnnyMac
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Location: Daytona Beach,Fl
     
Nov 19, 2006 07:04 |  #9

I have the non IS and bought the IS to replace it. I did however take the time to shoot both on a tripod for test shot reasons. I sent the new IS back the next day. The is IS sharp but not there with the non IS.If You HAVE to have the IS then get it otherwise get the sharper non IS version. I thought Maybe I just got a not so sharp copy because I wanted to have the IS available,but in talking to others since that have had both everyone agreed the non IS is a good bit better in the optics.


5d - 135f2L-100-400L
17-35L - 70-200f2.8L is
24-70L - 300f4L non is
24-105L - 400f2.8L
85f1.2L - 35f1.4L

  
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Bill ­ Roberts
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Nov 19, 2006 07:21 |  #10

It's a superb lens.

This is a 100% crop taken from the raw image, no sharpening or other adjustments, just saved for web in CS2. Rainy day, handheld 1/25th second @ f/4 ISO 800.


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wiselion
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Nov 19, 2006 10:30 as a reply to  @ Bill Roberts's post |  #11

Very interesting replies.


Canon 30D w/ battery grip, Canon 70-200 f/4, Sigma ex 100-300 f/4, Canon 1.4X Teleconverter, Canon 2.0X MK2 Teleconverter,Canon RS-80N3 remote switch, Manfrotto 3021 pro tripod, Manfrotto 3047 Panhead, Manfrotto 679B monopod, Lowepro 600 AW backpack,Quantaray U-100 backpack,Visible dust sensor cleaning kit.
Incredible wife to put up with my hobby...:D

  
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Sledhed
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Nov 19, 2006 13:03 |  #12

I love mine, very sharp but I rarely use the IS.

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Chris
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JohnJ80
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Nov 19, 2006 22:19 |  #13

Its sharp at f/4. It is a great lens - very fast focus, wonderful color reproduction, IS works. also takes the 1.4x TC very well although the AF does slow down some.

J.


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Juan ­ Zas
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Nov 20, 2006 03:38 |  #14

JohnJ80 wrote in post #2287457 (external link)
Its sharp at f/4. It is a great lens - very fast focus, wonderful color reproduction, IS works. also takes the 1.4x TC very well although the AF does slow down some.

J.

One vote more, 100% agree


Cheers
Juan
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Lightstream
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Nov 20, 2006 03:57 |  #15

wiselion wrote in post #2283352 (external link)
Just wondering how sharp this lens is shot at f/4. I may want to get this lens for hiking around.

Mike

Pretty dang impressive. The previous owner of my excellent copy told me that he found that if one could spare a third of a stop to go down to f/4.5, the lens then becomes ULTRA sharp. I would have absolutely no hesitation shooting f/4, but I often like to get that extra special edge out of my glass, so f/4.5 is par for the course for me. My testing pretty much bears that out. Note we're talking about the difference between "amazing" and "unbelievable", not so much "it needs to be stopped down to deliver", it doesn't really.




  
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How sharp is the 300L f/4 IS wide open?
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