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Thread started 15 Mar 2005 (Tuesday) 23:10
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Canon EF 100-400mm f/4.5-5.6L IS USM - AKA The Dust Pump

 
Cap'n ­ Fishy
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Mar 27, 2013 13:17 as a reply to  @ post 15761116 |  #7066

I sold this shot...

IMAGE: http://www.capnfishy.co.uk/images/Uist2011/4046.jpg

Money for old rope, I thought.

Col

These are small, but the ones out there are far away.
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Sydor25
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Mar 27, 2013 19:38 |  #7067

IMAGE: http://sydor25.com/Pictures/FWZ_Lions_03.26.13-0854_8x10.jpg

1D Mark III, 5D Mark III, EF 17-40 f/4, EF 24-105 f/4 IS, EF 70-200 f/2.8 IS, EF 100-400 f/4.5-5.6, EF 24 f/1.4, EF 300 f/4 IS, EF 100 f/2.8 Macro & EF-S 10-22
- James
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Snydremark
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Mar 27, 2013 19:57 |  #7068

Capn Fishy wrote in post #15753185 (external link)
=Cap'n Fishy;15753185]When you say a small shake, do you mean a movement of the subject? I am wondering, bcause if the shake is the photographer's hand then surely it is going to move across all the pixels of any size of sensor?

Sorry, I maybe missed the original gist of this... :oops:

Col

He's referring to movement of the camera. If you shoot with a 40D and a 7D, at the normally recommended 1/focal length and particularly with a long lens (400mm or greater), any camera shake you may have is much more noticeable with the 7D; which is due to the much higher pixel density of the 7D's sensor.

It's one of the reasons that Canon changed their recommendation to 1/(focal length x crop factor) for best results on the 7D, back when it was released. While that isn't a requirement, by any stretch, it certainly is a recommendation that helps get the best results from that particular beast.

The 40D was a very forgiving body when it came to jitter and not having proper handholding technique/form; which I only discovered once I moved up the 7D. That thing's been one of the things that forced me into better technique since I never shoot from a tripod, as the birds I encounter rarely sit in place long enough.


- Eric S.: My Birds/Wildlife (external link) (7D MkII/5D IV, Canon 10-22 f/3.5-4.5, Canon 24-105L f/4 IS, Canon 70-200L f/2.8 IS MkII, Canon 100-400L f/4.5-5.6 IS I/II)
"The easiest way to improve your photos is to adjust the loose nut between the shutter release and the ground."

  
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krb
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Mar 27, 2013 20:34 |  #7069

Snydremark wrote in post #15763366 (external link)
He's referring to movement of the camera. If you shoot with a 40D and a 7D, at the normally recommended 1/focal length and particularly with a long lens (400mm or greater), any camera shake you may have is much more noticeable with the 7D; which is due to the much higher pixel density of the 7D's sensor.

Only if you're pixel peeping. Since the sensors are the same size, any time you view the resulting images at the same size the amount of motion blur will be the same.


-- Ken
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ID ­ rocks
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Mar 27, 2013 23:34 as a reply to  @ krb's post |  #7070

I just rented this lens for a week for some birding. Wanted to try it out before purchasing. Used on a T2i.
I was very happy with this lens.

IMAGE: http://farm9.staticflickr.com/8088/8596164097_8750b02fc7_b.jpg
IMAGE LINK: http://www.flickr.com …/47016037@N06/8​596164097/  (external link)
Birding 2013-03-27 (external link) by fullofdirt (external link), on Flickr

IMAGE: http://farm9.staticflickr.com/8529/8596164389_1a169ceec6_b.jpg
IMAGE LINK: http://www.flickr.com …/47016037@N06/8​596164389/  (external link)
Birding 2013-03-27 (2) (external link) by fullofdirt (external link), on Flickr

IMAGE: http://farm9.staticflickr.com/8521/8597268956_f5cbfea327_b.jpg
IMAGE LINK: http://www.flickr.com …/47016037@N06/8​597268956/  (external link)
Birding 2013-03-27 (1) (external link) by fullofdirt (external link), on Flickr

Dan
Canon 7D II, 70D, T2i, Canon 500mm F4L, Tamron 150-600MM F/5-6.3 Di VC USD, Tamron AF 70-300mm f/4.0-5.6 SP Di USD XLD, Canon Nifty Fifty, Tamron AF 17-50mm F/2.8 Non-VC
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tonylong
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Mar 27, 2013 23:46 |  #7071

nikmar08 wrote in post #15760725 (external link)
Got lucky to spot one of the most elusive cats in the wild!! In Bandipur Tiger Reserve, India... one of the few places in India where they are taking measures to prevent this magnificent animal from going extinct in India (just 1400 of them left now).
This guy, around 6 years old and about 10ft long, didn't seem to be much of a "morning person".. still yawning and turning in his bed when we reached there at around 8am. All he did was lift his face up once in the one hour that we parked there in the hope of getting that one keeper of a shot. Well, that shot never happened as the park rangers started making people leave him alone as a crowd started gathering around as news of the sighting spread.


6E6A0039 (external link) by nikmar08 (external link), on Flickr


6E6A0038 (external link) by nikmar08 (external link), on Flickr

Quite a trip, and some very cool shots! A lot of us "critters" photographers would love a trip like that! Congrats!


Tony
Two Canon cameras (5DC, 30D), three Canon lenses (24-105, 100-400, 100mm macro)
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Wildlife project pics here (external link), Biking Photog shoots here (external link), "Suburbia" project here (external link)! Mount St. Helens, Mount Hood pics here (external link)

  
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Cap'n ­ Fishy
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Mar 28, 2013 11:05 |  #7072

krb wrote in post #15763481 (external link)
...Since the sensors are the same size, any time you view the resulting images at the same size the amount of motion blur will be the same.

That is what I am thinking... even if it means I haven't a scooby what Canon are on about :oops:

I used a 40D between 2007 and 2010, and then went to a 7D and I never noticed any issues with shake-blur when I changed (I accept it doesn't necessarily mean I didn't have any - just that I never noticed any :oops:).

I've always factored in the crop to the 1/focal length shutter speed thing - going right back to the 6MP 10D I used from 2004 to 2007 - it just seemed the logical thing to do. So, going from a 6MP to an 18MP C- sensor, I have never noticed this blur issue. I am trying to think whether the amount of sharpening I do to my processed RAWs has changed, and if anything I think I have used less going from 10D to 40D to 7D. But I'll not swear by it. Also, I have probably been improving my glass as we've been going along...

I would certainly say that the 100-400mm is plenty sharp on a 40D and on a 7D

IMAGE: http://www.desismileys.com/smileys/desismileys_3254.gif
IMAGE LINK: http://www.desismileys​.com/  (external link) .

Here's some examples all taken of moving boats from moving boats...

40D (400 mm @ 1/500s)
IMAGE: http://www.capnfishy.co.uk/images/Malham2010/5124.jpg

40D (310mm @ 1/180s ...Oops - thank you IS!)
IMAGE: http://www.capnfishy.co.uk/images/Malham2010/4774.jpg

7D (400mm @ 1/750s)

IMAGE: http://www.capnfishy.co.uk/images/Orkney/Swannay/9252.jpg

7D (400mm @ 1/500s)

IMAGE: http://www.capnfishy.co.uk/images/Orkney/Boardhouse/9722.jpg

Col

These are small, but the ones out there are far away.
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C ­ Scott ­ IV
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Mar 28, 2013 18:46 |  #7073

Kept seeing this Little Blue Heron each morning and decided to bring the camera today. It was quite overcast so fairly high ISO. Hopefully there will be better light in the coming days.

I think I'm going to like this lens.

IMAGE: http://www.cscott4.com/Animals/2013-Wildlife/i-38QWDzR/0/XL/20130328-7955-XL.jpg
IMAGE LINK: http://www.cscott4.com …476085&k=38QWDz​R&lb=1&s=A  (external link)

Charles
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"Dodging and burning are steps to take care of mistakes God made in establishing tonal relationships." Ansel Adams

  
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watt100
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Mar 29, 2013 07:01 |  #7074

Club Lacrosse

(with XSi/450D)

IMAGE: http://farm9.staticflickr.com/8087/8598134944_38560e3cd0_c.jpg



  
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Sydor25
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Mar 29, 2013 10:26 |  #7075

IMAGE: http://sydor25.com/Pictures/CPZ_Lions_03.28.13-0956_8x10.jpg


IMAGE: http://sydor25.com/Pictures/MH7A8493_8x10.jpg

1D Mark III, 5D Mark III, EF 17-40 f/4, EF 24-105 f/4 IS, EF 70-200 f/2.8 IS, EF 100-400 f/4.5-5.6, EF 24 f/1.4, EF 300 f/4 IS, EF 100 f/2.8 Macro & EF-S 10-22
- James
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tonyniev
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Mar 29, 2013 15:01 |  #7076

I used the lens @400 to shoot roses blooming in my garden

IMAGE: http://tonyniev.smugmug.com/Flowers/Tonys-roses2013/i-g6ctB8v/1/L/IMG_0493-L.jpg

Cheers,
Tony
Leica M10 & M3
Sony A7R4 & A7R
Canon 5D2 & 7D

  
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chenga732
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Mar 29, 2013 19:22 |  #7077

Testing the 5dmk3 with 100-400 at the DC zoo.


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Xsi|24-105mm f4.0|70-200mm f4.0|85mm f.18

  
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Snydremark
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Mar 29, 2013 19:44 |  #7078

Terrible combination; that rock is TOTALLY out of focus :D


- Eric S.: My Birds/Wildlife (external link) (7D MkII/5D IV, Canon 10-22 f/3.5-4.5, Canon 24-105L f/4 IS, Canon 70-200L f/2.8 IS MkII, Canon 100-400L f/4.5-5.6 IS I/II)
"The easiest way to improve your photos is to adjust the loose nut between the shutter release and the ground."

  
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C ­ Scott ­ IV
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Mar 29, 2013 19:55 |  #7079

The light was a little better today and Little Blue was still hanging around.

IMAGE: http://www.cscott4.com/Animals/2013-Wildlife/i-PxJBfq2/1/XL/20130329-8099-XL.jpg
IMAGE LINK: http://www.cscott4.com …978992&k=PxJBfq​2&lb=1&s=A  (external link)

Charles
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"Dodging and burning are steps to take care of mistakes God made in establishing tonal relationships." Ansel Adams

  
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chenga732
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Mar 29, 2013 20:05 as a reply to  @ Snydremark's post |  #7080

Yes, I know.. I just like the panda coming out behind the tree. Here is another one:


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Xsi|24-105mm f4.0|70-200mm f4.0|85mm f.18

  
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Canon EF 100-400mm f/4.5-5.6L IS USM - AKA The Dust Pump
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