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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 28 Dec 2011 (Wednesday) 21:17
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Canon 60D Users, Unite! (3)

 
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MakisM1
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Mar 09, 2012 20:17 |  #5071

Keyan wrote in post #14059007 (external link)
All the way down to 18 on the 17-55 is going to start to get into the area where diffraction starts to show up, that is why I was asking. What need did you have for a long exposure? At that distance you should be hyperfocal at just about any aperture.

Some days ago, I did a little project. Put the camera on a tripod and shot the same scene with different aperture and focal lengths.

From the 18mm focal length:

The overall sharpest is f11.

Tied for 2nd f8 and f16

Fourth f22

Fifth f5.6

Sixth f4.0

Last f3.5

The Overall FOV:


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I was a bit surprised that the f5.6 was less sharp than the f22... but at the focal end of the lens (18 mm) strange things happen...

Gerry
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OrangeImaging
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Mar 09, 2012 20:20 |  #5072
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Hows this?

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Weathered (external link) by Orange Imaging (external link), on Flickr

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OrangeImaging
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Mar 09, 2012 20:24 |  #5073
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Also, Makis, I think you should check this review out, here's the resolution chart from it:

IMAGE: http://www.lenstip.com/tmp/1634_roz_cen.jpg

http://www.lenstip.com …_IS_USM_Introdu​ction.html (external link)

My favorite site for lens reviews.

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MakisM1
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Mar 09, 2012 20:31 |  #5074

OrangeImaging wrote in post #14059308 (external link)
Also, Makis, I think you should check this review out, here's the resolution chart from it:

QUOTED IMAGE

http://www.lenstip.com …_IS_USM_Introdu​ction.html (external link)

My favorite site for lens reviews.

For the 18-200mm is this

IMAGE: http://www.lenstip.com/upload3/3421_roz_centr.jpg

However, for MY lens/camera combination the conclusions are slightly different! I am sure within tolerance, but I prefer to see myself what the results are. DPReview has similar graphs.

Gerry
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todmac
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Mar 09, 2012 20:50 as a reply to  @ post 14059240 |  #5075

Keyan wrote in post #14059007 (external link)
All the way down to 18 on the 17-55 is going to start to get into the area where diffraction starts to show up, that is why I was asking. What need did you have for a long exposure? At that distance you should be hyperfocal at just about any aperture.

Keyan, how about next time I go to the Grand Canyon I will make sure and consult with you on what settings I should use. I apologize to you and everyone for even considering to post the photo shown below. It clearly was shot using the wrong aperture with the wrong shutter speed.

IMAGE: http://farm7.staticflickr.com/6006/6201822668_2a980d9113_b.jpg

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Rivest
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Mar 09, 2012 20:57 |  #5076

Tod, don't take it that seriously, I think he was just trying to help.


Hi, I'm David.

  
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1Tanker
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Mar 09, 2012 21:52 as a reply to  @ Rivest's post |  #5077

Makis..nice test. ;) Were you MFing using LV or using AF?


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MakisM1
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Mar 09, 2012 21:57 |  #5078

1Tanker wrote in post #14059710 (external link)
Makis..nice test. ;) Were you MFing using LV or using AF?

Thank you. It's been informative...

https://photography-on-the.net …?p=14040328&pos​tcount=178

AF for the first shot in each focal length (tried a few times until there was no AF action/adjustment) and then turned to MF, so that it would not refocus in each aperture.

To be perfectly honest, I have never used Live View for better focus :o So I am not confident on how I would do. Given that the bridge is so far, I think I'd be hyperfocal in any aperture and I was always focusing wide open.


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OrangeImaging
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Mar 09, 2012 22:42 |  #5079
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Tod, if I offended you, I'm sorry. I was genuinely just interested in why you picked the settings you did, I'm always looking to learn off people. And I was just trying to help out with the chart and link, apologies.


I'm terrible at making PP decisions, so I'll just keep em both!

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Nikki (external link) by Orange Imaging (external link), on Flickr

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todmac
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Mar 09, 2012 22:51 |  #5080

OrangeImaging wrote in post #14059916 (external link)
Tod, if I offended you, I'm sorry. I was genuinely just interested in why you picked the settings you did, I'm always looking to learn off people. And I was just trying to help out with the chart and link, apologies.

Absolutely nothing you said and no apology needed...very nice weathered barn shot btw.


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macroshooter1970
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Mar 09, 2012 22:52 |  #5081

todmac wrote in post #14059430 (external link)
Keyan, how about next time I go to the Grand Canyon I will make sure and consult with you on what settings I should use. I apologize to you and everyone for even considering to post the photo shown below. It clearly was shot using the wrong aperture with the wrong shutter speed.

QUOTED IMAGE

Good photo and as you already know, nothing wrong with F/18 at all.




  
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arch.cm
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Mar 09, 2012 22:58 |  #5082

IMAGE: http://farm8.staticflickr.com/7059/6968541911_5516a4c6ae_z.jpg

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todmac
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Mar 09, 2012 23:02 |  #5083

macroshooter1970 wrote in post #14059957 (external link)
Good photo and as you already know, nothing wrong with F/18 at all.

Thanks Mike :)


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Drewc2010
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Mar 09, 2012 23:06 |  #5084

Couldn't help but take out the 300 f/4L for tonight...is this what everyone else is looking at now too?

IMAGE: http://farm8.staticflickr.com/7192/6822456332_baa6684873_b.jpg
IMAGE LINK: http://www.flickr.com …erphotography/6​822456332/  (external link)
"See the Footprints?" (external link) by Drew Carter Photography (external link), on Flickr

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Mar 09, 2012 23:45 as a reply to  @ Drewc2010's post |  #5085

Thanks Makis.

@Drew.. heading out there shortly.. very bright moon, and clear skies.. also taking out the 300L f/4 IS. :) Nice shot!


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