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Archive 2012 · Canon 500/4 V-1
  
 
sritri
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p.1 #1 · p.1 #1 · Canon 500/4 V-1


What are usually the sweet spots of this lens on a crop & FF bodies ?


Jan 29, 2012 at 06:19 PM
EB-1
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p.1 #2 · p.1 #2 · Canon 500/4 V-1


The 500/4 IS?

EBH



Jan 29, 2012 at 06:33 PM
sritri
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p.1 #3 · p.1 #3 · Canon 500/4 V-1


Yes.


Jan 29, 2012 at 06:37 PM
Don Clary
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p.1 #4 · p.1 #4 · Canon 500/4 V-1


I've been shooting mine for 9 years. You are unlikely to shoot it more closed than f11, in order to keep up shutter speed and minimize shake. Maximum resolution is probably f5.6 or f8; can't really tell any difference. If 100% resolution is at f5.6 or f8, f4 is at 98% resolution, quite significantly better than 500 f4.5L. Stopping down on 500f4L IS is only for DOF. It is not needed to improve resolution. All this on FF.


Jan 29, 2012 at 07:11 PM
AGeoJO
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p.1 #5 · p.1 #5 · Canon 500/4 V-1


+1 on what Don posted.

I have used mine wide open at f/4.0 pretty much all the time even with a 1.4X TC (the effective aperture becomes f/5.6 then). From time to time, to increase the DOF, I stop it down one stop and that's pretty much it.



Jan 29, 2012 at 07:22 PM
jcolwell
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p.1 #6 · p.1 #6 · Canon 500/4 V-1


I shoot it wide open most of the time. Sometimes (but not often) I stop down to f/5.6 of f/8 for DOF, not for improved IQ. Once in a while I stop down to get slower shutter speeds for subjects like handheld panning of motorcycle racing in good light, when I'm already down to ISO 100 and the shutter speed is still too high.


Jan 29, 2012 at 07:29 PM
sritri
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p.1 #7 · p.1 #7 · Canon 500/4 V-1


Makes perfect explanation. I just got this lens and have been shooting around f/9 - f/13 on a 7D and the results were abysmal.

My reasoning was for DOF and a super bright sunlight yesterday. But I guess there lies my problem



Jan 29, 2012 at 07:52 PM
ChrisRD
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p.1 #8 · p.1 #8 · Canon 500/4 V-1


What Don said...and as for FF vs crop...I've not noticed any differences in optical performance between the 7D, 5D2 and 1D3 with this lens. I don't think I've ever stopped down more than F/8.

It's great on all of them and takes extenders well too...(I probably shoot it more with the 1.4X attached than I do bare).



Jan 29, 2012 at 08:00 PM
mogud
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p.1 #9 · p.1 #9 · Canon 500/4 V-1


I shoot my 500 f/4 IS on a 7D and get great results at all f-stops. No issues with my 7D at all.


Jan 29, 2012 at 09:50 PM
StarNut
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p.1 #10 · p.1 #10 · Canon 500/4 V-1


I generally use mine with my 7D, and it's fine at all apertures I've used. The depth of field on such a long lens is so narrow regardless of aperture (I have a photo of a squirrel staring at me from about 5 meters away, taken at f/10, and critical focus is from his nose to his eyes) that shooting at smaller than f/11 probably provides no usable benefit anyway, even if you can get the desire shutter speed at that aperture.


Jan 29, 2012 at 11:33 PM
 

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tcssas
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p.1 #11 · p.1 #11 · Canon 500/4 V-1


I stop down on sunny day...but never go beyond f/8 (Only if tripod mounted) and mostly shoot at f/5.6 handheld if light is good.

It is excellent even wide open.



Jan 30, 2012 at 02:06 AM
kirry007
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p.1 #12 · p.1 #12 · Canon 500/4 V-1


Feel free to use it wide open at f/4...it's very sharp. There's a reason why people pay a premium price for that lens and the 300 2.8 IS.


Jan 30, 2012 at 02:11 AM
sritri
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p.1 #13 · p.1 #13 · Canon 500/4 V-1


Will try to remember all this on my next outing. Chicagoland weather is getting crazy by the day such that all my backyard songbirds have taken an unauthorized leave of absence


Jan 30, 2012 at 03:03 AM
surf monkey
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p.1 #14 · p.1 #14 · Canon 500/4 V-1


sritri wrote:
I just got this lens and have been shooting around f/9 - f/13 on a 7D and the results were abysmal.


How can the 500f4 have abysmal results at f9 if good technique is used?
Have you MA'd the lens?
What shutter speed?
Has anyone else had an issue stopping down with this lens?



Feb 02, 2012 at 04:43 PM
Don Clary
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p.1 #15 · p.1 #15 · Canon 500/4 V-1


How can the 500f4 have abysmal results at f9 if good technique is used?

That's what I was thinking too. In this thread, I posted a picture of a Bighorn ram, quite close, showing only his head and horns. I won't waste bandwidth by posting again here.

http://www.fredmiranda.com/forum/topic/1069214/0

I shot at 1/85 sec, Gitzo tripod mounted at f14. I used that extreme aperture because I knew DOF was going to be a major problem. Below is a 100% crop of his eyeball. Looks pretty crisp to me.






100% crop, f14




Feb 02, 2012 at 05:07 PM
StarNut
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p.1 #16 · p.1 #16 · Canon 500/4 V-1


100% crop of a squirrel's nose, jpeg (no extra sharpening), from a 7D at 1/125 sec, 400 ISO., tripod-mounted.




  Canon EOS 7D    EF500mm f/4L IS USM lens    500mm    f/10.0    1/125s    400 ISO    0.0 EV  




Feb 02, 2012 at 06:18 PM
sritri
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p.1 #17 · p.1 #17 · Canon 500/4 V-1


Surf, Don & Star - It could very well be my questionable technique

The longest lens I had used before was a 400/5.6 which I hardly used before trading it for a 300/4 IS. I have had better results with the 7D + 70-200/2.8 IS II + 1.4 II + 2 II combination than the 7D + 500/4 @ f/9+

At this point I am convinced that my technique with 7D + 500 needs more time as the same with a 5D Mk-II handheld photo came out crisp and sharp.



Feb 03, 2012 at 01:18 AM
surf monkey
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p.1 #18 · p.1 #18 · Canon 500/4 V-1


sritri wrote:
Surf, Don & Star - It could very well be my questionable technique

The longest lens I had used before was a 400/5.6 which I hardly used before trading it for a 300/4 IS. I have had better results with the 7D + 70-200/2.8 IS II + 1.4 II + 2 II combination than the 7D + 500/4 @ f/9+

At this point I am convinced that my technique with 7D + 500 needs more time as the same with a 5D Mk-II handheld photo came out crisp and sharp.


To check your lens for sharpness, you should try setting up on a tripod using live view to confirm focus. Eliminating all other factors is the only way to determine if it's the lens that's at fault. The 70-200 with stacked extenders shouldn't be giving you better results. Post some 100% crop photos of your tests - that way you can get some input from those that know what to expect.



Feb 03, 2012 at 01:40 AM
galenapass
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p.1 #19 · p.1 #19 · Canon 500/4 V-1


It could be the lens, but rarely does one ever hear of a 500mm f4/IS that needed to go back to Canon due to an optical problem. My own copy is exceptionally sharp, wide open or stopped down.


Feb 03, 2012 at 01:44 AM
Don Clary
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p.1 #20 · p.1 #20 · Canon 500/4 V-1


You also might consider your tripod and head. After buying my first Gitzo, I dumped my two lesser tripods. I now use 3 different sizes of only Gitzo. And when I purchased my 500, at the same time, I bought a full Wimberley (not side kick) head. Super teles demand top quality support. No sense in paying $6,000 to $10,000, and then going cheap on the legs and head.


Feb 03, 2012 at 03:34 AM
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