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Archive 2012 · Canon 300mm f/4 L IS vs 70-300mm f/4-5.6 L IS (I need you...
  
 
Lars Johnsson
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p.2 #1 · p.2 #1 · Canon 300mm f/4 L IS vs 70-300mm f/4-5.6 L IS (I need your help!)


ShaneB77 wrote:
F/8 makes me very nervous. Anything beyond broad daylight, and you're toast.


If you are toast at f/8 and a 4 stop IS lens. Then you probably are toast with the f/5,6 lens and less good IS also.
And that's why we have tripods and monopods



Dec 27, 2012 at 05:17 AM
WestFalcon
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p.2 #2 · p.2 #2 · Canon 300mm f/4 L IS vs 70-300mm f/4-5.6 L IS (I need your help!)


If Imagemaster recommends something, I would buy it.....His pictures are among the best I have seen in over 40 years of photography...Do a search on him and see for yourself.


Dec 27, 2012 at 03:40 PM
JohnJ80
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p.2 #3 · p.2 #3 · Canon 300mm f/4 L IS vs 70-300mm f/4-5.6 L IS (I need your help!)


Pixel Perfect wrote:
Yes I've heard it will be the new kit lens for the EOS 3D being released on April's 1st


Hmm, I was using my 100-400L + 1.4 at dusk regularly last week and lens had no issues focusing on my 1D IV.


"most cameras" - your Mk4 and my Mk3 have the ability to AF at f/8. Many/Most do not.

J.



Dec 27, 2012 at 10:21 PM
Imagemaster
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p.2 #4 · p.2 #4 · Canon 300mm f/4 L IS vs 70-300mm f/4-5.6 L IS (I need your help!)


JohnJ80 wrote:
"most cameras" - your Mk4 and my Mk3 have the ability to AF at f/8. Many/Most do not.

J.



Many/Most will if you use a non-reporting TC. That includes reporting TC's with taped pins.



Dec 28, 2012 at 05:48 PM
JohnJ80
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p.2 #5 · p.2 #5 · Canon 300mm f/4 L IS vs 70-300mm f/4-5.6 L IS (I need your help!)


Imagemaster wrote:
Many/Most will if you use a non-reporting TC. That includes reporting TC's with taped pins.


Very narrow range of lighting conditions to make this work.

J.



Dec 29, 2012 at 12:22 AM
 

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Imagemaster
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p.2 #6 · p.2 #6 · Canon 300mm f/4 L IS vs 70-300mm f/4-5.6 L IS (I need your help!)


JohnJ80 wrote:
Very narrow range of lighting conditions to make this work.


Which is not what you said: Many/Most do not






  Canon EOS-1D Mark IV    EF70-300mm f/4-5.6L IS USM lens    309mm    f/8.0    1/200s    1600 ISO    -0.7 EV  




Dec 29, 2012 at 01:34 AM
jpeter
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p.2 #7 · p.2 #7 · Canon 300mm f/4 L IS vs 70-300mm f/4-5.6 L IS (I need your help!)


The 300f4 IS is an underappreciated lens on this photography forum. My first copy was so-so but now own a second one that is very good.

It is fairly light weight and easy to carry around. I shot with it using a 7d and 1.4x extender before getting a 500. I have missed just a few shots because I lacked a zoom. But will find more shots where I wanted to be longer in focal length.

My 300 still gets a lot of use. I don't like to go anywhere without some kind of tele lens on my person. And the 300 is just easy to bring in a small camera bag. I guess the birding has taken over.

JP



Dec 29, 2012 at 04:55 AM
JohnJ80
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p.2 #8 · p.2 #8 · Canon 300mm f/4 L IS vs 70-300mm f/4-5.6 L IS (I need your help!)


Imagemaster wrote:
Which is not what you said:



Ok, let me be explicit.

1. Most cameras don't have focus points that are designed to work with an f/8 maximum aperture.
2. You can get them to work within a very narrow range of lighting and it has to be very bright.

J.



Jan 01, 2013 at 12:15 AM
arnold1
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p.2 #9 · p.2 #9 · Canon 300mm f/4 L IS vs 70-300mm f/4-5.6 L IS (I need your help!)


300
70-200 + 1.4X
70-300
I wouldn't spend money on 70-300 as you'll want something faster once you'll see its limitations. Even 300 f/4.0 in a low light situation hunts for focus. As others have also suggested, I either grab the 300 or if you want the zoom option go for a 70-200 and a 1.4.



Jan 01, 2013 at 12:34 AM
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