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dgimages
Joined: 13 Jul 2006
Posts: 26
Location: NYC
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Posted: Thu Apr 19, 2012 9:01 pm
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If you own a Canon 7D and do not have focus issues, could you show me your sharp images. I just picked up a refurb 7D and would like to see what you guys/gals are getting from yours.
If you could also let me know what lens you used it would be appreciated.
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scphoto60
Joined: 26 Sep 2010
Posts: 70
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Posted: Fri Apr 20, 2012 3:21 am
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This is a 100% crop of the original, taken with a 7D, 24-105 f/4L at 105mm, f/8, 1/400s, ISO100, I also use a 17-40 f/4L and a 70-200 f/4L.
The 24-105 needed a bit of fiddling around with the micro-adjustment (+9) but what I have found is that if the image is not sharp its usually me that is the problem!
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ajancso
Joined: 18 May 2009
Posts: 1891
Location: Right Behind You
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dgimages
Joined: 13 Jul 2006
Posts: 26
Location: NYC
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Posted: Fri Apr 20, 2012 10:10 am
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Thank you. That is exactly what I was looking for...excellent detail. Was the difference in sharpness very great in the 24-105 from before you made the micro adjustment?
Can't wait to put mine to use now.
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dgimages
Joined: 13 Jul 2006
Posts: 26
Location: NYC
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Posted: Fri Apr 20, 2012 10:14 am
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Thank you too. Very nice port...I guess if my images come out poorly I can't blame the camera...lol.
I was hoping the step up from the 20D would wow me.
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scphoto60
Joined: 26 Sep 2010
Posts: 70
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Posted: Fri Apr 20, 2012 11:04 am
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The difference between before and after micro adjustment wasn't that great, it tends to vary a bit depending on the focal length used. I was finding that at 105mm it was difficult to get a tack sharp image so that's what I did the adjustment for, anything wider than maximum seemed ok and the adjustment hasn't made that much difference to the shorter end of the zoom. I've also found that the sweet spot for this lens seems to be f/5.6
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dgimages
Joined: 13 Jul 2006
Posts: 26
Location: NYC
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Posted: Fri Apr 20, 2012 11:58 am
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| scphoto60 wrote: | | The difference between before and after micro adjustment wasn't that great, it tends to vary a bit depending on the focal length used. I was finding that at 105mm it was difficult to get a tack sharp image so that's what I did the adjustment for, anything wider than maximum seemed ok and the adjustment hasn't made that much difference to the shorter end of the zoom. I've also found that the sweet spot for this lens seems to be f/5.6 |
Good to know...ever since I started getting back into stock photography I have been hyper-critical about focus...I think I reject more of my own photos than the reviewers, lol.
My go to lens on my 20D was a Tamron 28-75 f/2.8 XR Di. Once I have time to shoot some more I'm hoping it will play nice with the 7D. The only L glass I have is the 70-200 f/2.8 IS L...but I haven't used it for stock photos. I really need to get more L glass. I like the collection you have and will look into the ones you have.
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Mike Price
Joined: 06 Jun 2008
Posts: 2919
Location: South Wales
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Posted: Fri Apr 20, 2012 12:35 pm
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Because of the higher resolution of the 7D it will show up lens flaws and poor technique much more than the 8Mp 20D. It is therefore very important to have good technique and good quality lenses to get the bes out of the camera.
Mike
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copidosoma
Joined: 17 Nov 2009
Posts: 3800
Location: Canada
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dgimages
Joined: 13 Jul 2006
Posts: 26
Location: NYC
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Posted: Fri Apr 20, 2012 8:35 pm
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I remember reading that post...the olive picture specifically. I have seen the bad images and now I've seen the good...I guess it's time to start shooting now and come to my own conclusions about my 7D copy.
Thanks to those who replied.
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copidosoma
Joined: 17 Nov 2009
Posts: 3800
Location: Canada
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Posted: Fri Apr 20, 2012 9:33 pm
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| dgimages wrote: |
I remember reading that post...the olive picture specifically. I have seen the bad images and now I've seen the good...I guess it's time to start shooting now and come to my own conclusions about my 7D copy.
Thanks to those who replied. |
Exposure is key. You are working with very small microsites on your sensor. You can't push them too far. And any little timy bit of camera movement will show up hugely.
I often use live view at 10x just to remind myself how critical focus is (amazing how little you ahve to be off to make it show up) and just how much movement is happening (even on a tripod).
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dgimages
Joined: 13 Jul 2006
Posts: 26
Location: NYC
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Posted: Sun May 13, 2012 11:58 am
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I made the right choice with the 7D...all images created with the 7D have been accepted...they are even selling the day after getting accepted....
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luizeduardo
Joined: 12 Sep 2010
Posts: 72
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Posted: Fri May 25, 2012 2:36 pm
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Before you blame your camera or lens, do some test shots using a sturdy tripod and a good flash so you can be sure the image is well lighted. I used to have a 7D and a 24-105 and It produced very good images.
If the ligth is not strong enough, your image tends to have low contrast and so they look less sharp.
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dgimages
Joined: 13 Jul 2006
Posts: 26
Location: NYC
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Posted: Fri May 25, 2012 7:11 pm
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| luizeduardo wrote: | Before you blame your camera or lens, do some test shots using a sturdy tripod and a good flash so you can be sure the image is well lighted. I used to have a 7D and a 24-105 and It produced very good images.
If the ligth is not strong enough, your image tends to have low contrast and so they look less sharp. |
I'm not blaming the camera at all. I'm saying it's great and all of my 7D images are getting approved...and selling.
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luizeduardo
Joined: 12 Sep 2010
Posts: 72
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Posted: Fri May 25, 2012 7:47 pm
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| dgimages wrote: | | luizeduardo wrote: | Before you blame your camera or lens, do some test shots using a sturdy tripod and a good flash so you can be sure the image is well lighted. I used to have a 7D and a 24-105 and It produced very good images.
If the ligth is not strong enough, your image tends to have low contrast and so they look less sharp. |
I'm not blaming the camera at all. I'm saying it's great and all of my 7D images are getting approved...and selling. |
That is the problem of wrinting too fast:-) I haven't seen your last post.
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