Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and our Privacy Policy.
OK
Forums  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear
Guest
Forums  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear
Register to forums    Log in

 
FORUMS Cameras, Lenses & Accessories Canon Digital Cameras 
Thread started 08 Jan 2010 (Friday) 11:56
Search threadPrev/next
sponsored links (only for non-logged)

Canon 7D Focus

 
weeman750
Member
Avatar
84 posts
Joined Oct 2004
Location: Falkirk, Scotland
     
Jan 08, 2010 11:56 |  #1

I have been a bit disappointed with some shots from my 7D. Still subjects are ok but moving targets (birds in flight, etc) have been soft. I had already posted these shots in the bird section but decided to try a bit more sharpening on them.
Do you think they are over sharpened or is a bit more sharpening than I did with my 30D what is needed with the 7D?

IMAGE: http://img.photobucket.com/albums/v703/weeman750/7D%20sharpened/IMG_0257.jpg

IMAGE: http://img.photobucket.com/albums/v703/weeman750/7D%20sharpened/IMG_0248.jpg

IMAGE: http://img.photobucket.com/albums/v703/weeman750/7D%20sharpened/IMG_0239.jpg

IMAGE: http://img.photobucket.com/albums/v703/weeman750/7D%20sharpened/IMG_0238.jpg

IMAGE: http://img.photobucket.com/albums/v703/weeman750/7D%20sharpened/IMG_0232.jpg

Colin.
www.colinspics.co.uk (external link)

  
  LOG IN TO REPLY
Sdiver2489
Goldmember
2,845 posts
Gallery: 2 photos
Likes: 113
Joined Sep 2009
     
Jan 08, 2010 12:03 |  #2

weeman750 wrote in post #9352120 (external link)
I have been a bit disappointed with some shots from my 7D. Still subjects are ok but moving targets (birds in flight, etc) have been soft. I had already posted these shots in the bird section but decided to try a bit more sharpening on them.
Do you think they are over sharpened or is a bit more sharpening than I did with my 30D what is needed with the 7D?

QUOTED IMAGE

Hard to tell with a low res image without EXIF data and only one example of a bird that has little fine detail


Please visit my Flickr (external link) and leave a comment!

Gear:
Canon 5D III, Canon 24-70L F4 IS, Canon 70-300L F4-F5.6 IS, Canon 100mm F2.8L IS Macro, Canon 35mm F2.0 IS, Canon 430EX II-RT, Canon 600EX II-RT

  
  LOG IN TO REPLY
firomero
Member
81 posts
Joined Sep 2009
Location: Venezuela
     
Jan 08, 2010 12:16 |  #3

and the first two birds are in a very low contrast situation almost the same color as the background making it more tricky to focus properly


Canon 7D canon 28-135 - 50mm 1.8 -tamron 17-50vc and 70-300vc and speedlite 430EX II

  
  LOG IN TO REPLY
BradM
Goldmember
Avatar
1,521 posts
Gallery: 9 photos
Likes: 76
Joined Mar 2007
Location: Centralia, WA
     
Jan 08, 2010 12:26 as a reply to  @ firomero's post |  #4

As stated the first couple shots contrast is very low making it tough for camera. The lack of exif information doesn't help.

On the sharpening, there are obvious sharpening artifacts in the remaining images, particularly easily seen in the coot image. The speckling seen in water is evident throughtout the plumage.



  
  LOG IN TO REPLY
eosphotomanoftennessee
Senior Member
268 posts
Joined Jan 2008
     
Jan 08, 2010 15:40 |  #5

since there isn't any data for photos, what focus mode are you using? Not talking AF Servo, but Focus Fn. The 7D has several modes and also has tweak settings for the AF. In a low contrast subject you might not want Spot AF, just Single Point AF. Only saw one shot were focus looked ON.


Doug, osphotoman@yahoo.com (external link)
7D
;), Canon SX1 IS, Film Rebel for history
300L, 70-200L, 50 1.8, 28-105 EF, Sigma 18-50 EF-S
580Speedlite, AB Ring Flash, Excalibur 320, 2- Morris Optical Slaves
Adobe CS5 Extended, Wacom Graphics Tablet

  
  LOG IN TO REPLY
Lowner
"I'm the original idiot"
Avatar
12,924 posts
Likes: 18
Joined Jul 2007
Location: Salisbury, UK.
     
Jan 08, 2010 16:07 |  #6

The 30D has a lighter low pass (anti-aliassing) filter, so I can well imagine that the 7D might require more sharpening. On the other hand, it probably accepts sharpening better than the 30D.

It's difficult to judge the low res shots you've posted, but the first three seem fine, while four seems very soft.


Richard

http://rcb4344.zenfoli​o.com (external link)

  
  LOG IN TO REPLY
AzzKicker
Goldmember
Avatar
1,107 posts
Likes: 69
Joined Jul 2003
Location: Rio Grande Valley, Texas
     
Jan 11, 2010 09:06 |  #7

I havent been too happy with my 7D focusing either. I'm wondering if something is wrong with my AF especially in AI SERVO. I've had lots of people tell me their 7D's are better than their Mark 3's which I find hard to believe cuz my Mark 3 was way better and responsive.


Ruben D. Zamora
Canon 6D Mark II, Canon 20-35L,Genesis 200 Strobe

  
  LOG IN TO REPLY
Lowner
"I'm the original idiot"
Avatar
12,924 posts
Likes: 18
Joined Jul 2007
Location: Salisbury, UK.
     
Jan 11, 2010 09:44 as a reply to  @ AzzKicker's post |  #8

The 7D has very quickly earned a reputation for being a camera that has to be understood, particularly it's AF systems. Why that should be more so than any other new body I have no idea, maybe just more complicated?


Richard

http://rcb4344.zenfoli​o.com (external link)

  
  LOG IN TO REPLY
AzzKicker
Goldmember
Avatar
1,107 posts
Likes: 69
Joined Jul 2003
Location: Rio Grande Valley, Texas
     
Jan 11, 2010 10:10 |  #9

Lowner wrote in post #9370858 (external link)
The 7D has very quickly earned a reputation for being a camera that has to be understood, particularly it's AF systems. Why that should be more so than any other new body I have no idea, maybe just more complicated?

Thats a bunch of BS. There arent that many settings on the 7D for AF that would GREATLY affect the cameras ability to AF properly. It can either do it or it cant' SImple as that.


Ruben D. Zamora
Canon 6D Mark II, Canon 20-35L,Genesis 200 Strobe

  
  LOG IN TO REPLY
pcunite
Goldmember
Avatar
1,481 posts
Likes: 3
Joined Apr 2007
     
Jan 11, 2010 10:10 |  #10

A lot of 1D Mark III guys like the AF from the 7D. Keep in mind that the APS-C workflow is a little different from FF. In DPP you need to slide the sharping setting up to 6. Take care.




  
  LOG IN TO REPLY
stsva
Cream of the Crop
Avatar
6,363 posts
Gallery: 45 photos
Likes: 286
Joined Mar 2009
Location: Northern Virginia
     
Jan 11, 2010 10:14 |  #11

Two thoughts:
1) There is substantial evidence that 7D images may need more sharpening than images from some other Canon cameras.
2) There is some evidence that a higher shutter speed may be needed using the 7D to maintain the same perceived level of sharpness as would result from a lower shutter speed on lower-resolution sensor cameras, especially with longer focal-length shots (a possible reason for this is that the higher-resolution 7D sensor "magnifies" camera/subject movement more than a lower-resolution sensor).


Some Canon stuff and a little bit of Yongnuo.
Member of the GIYF
Club and
HAMSTTR
٩ Breeders Club https://photography-on-the.net …=744235&highlig​ht=hamsttr Join today!
Image Editing OK

  
  LOG IN TO REPLY
gabebalazs
Bird Whisperer
Avatar
7,643 posts
Gallery: 52 photos
Likes: 1070
Joined Nov 2008
Location: Toledo, OH
     
Jan 11, 2010 10:18 |  #12

I've found that many sharpness complaints against the 7D come from the fact that since it's an 18mp crop camera it will mercilessly amplify every problem that might have occured when taking the shot. Such as atmosphere, motion blur, missed focus (whether it's user error or AF error etc.). So when people look at the 100% crops they are disappointed.
I've shot birds in flight with my 7D and was generally happy with the results. Still if I had a nice L tele prime, my pics would be much better. It's not the camera or the sensor that's soft, it's the other things. When someone uses a 30D, or XT with their 8mp sensor, these tiny flaws of the picture are not as much visible as on an 18mp image. They are there but not as visible, giving you a "it's much sharper than the 7D" impression.
Now you may ask then what's the point of the 18mp? Well, what's the point of a 190 mph Porsche when you can only drive 70-80 mph max on public roads... The 7D, when the lens, the conditions and everything is good is capable of very sharp 100% crops.

Sorry, I kinda got off topic here. but anyway, here is the 7D 100% crops thread with a lot of great shots that look sharp even at 100%

https://photography-on-the.net/forum/showthre​ad.php?t=799284


SONY A7RIII | SONY A7III | SONY RX10 IV | SONY RX100 | 24-70 2.8 GM | 70-200 2.8 GM | 16-35 F/4 | PZ 18-105 F/4 | FE 85 1.8 | FE 28-70 | SIGMA 35 1.4 ART | SIGMA 150-600 C | ROKINON 14 2.8
Gabe Balazs Photo (external link)
Nature Shots Portfolio (external link)

  
  LOG IN TO REPLY
gabebalazs
Bird Whisperer
Avatar
7,643 posts
Gallery: 52 photos
Likes: 1070
Joined Nov 2008
Location: Toledo, OH
     
Jan 11, 2010 10:19 |  #13

stsva wrote in post #9371037 (external link)
Two thoughts:
1) There is substantial evidence that 7D images may need more sharpening than images from some other Canon cameras.
2) There is some evidence that a higher shutter speed may be needed using the 7D to maintain the same perceived level of sharpness as would result from a lower shutter speed on lower-resolution sensor cameras, especially with longer focal-length shots (a possible reason for this is that the higher-resolution 7D sensor "magnifies" camera/subject movement more than a lower-resolution sensor).

Haha, you beat me. I guess I babble too much :)


SONY A7RIII | SONY A7III | SONY RX10 IV | SONY RX100 | 24-70 2.8 GM | 70-200 2.8 GM | 16-35 F/4 | PZ 18-105 F/4 | FE 85 1.8 | FE 28-70 | SIGMA 35 1.4 ART | SIGMA 150-600 C | ROKINON 14 2.8
Gabe Balazs Photo (external link)
Nature Shots Portfolio (external link)

  
  LOG IN TO REPLY
AzzKicker
Goldmember
Avatar
1,107 posts
Likes: 69
Joined Jul 2003
Location: Rio Grande Valley, Texas
     
Jan 11, 2010 10:20 |  #14

gabebalazs wrote in post #9371069 (external link)
I've found that many sharpness complaints against the 7D come from the fact that since it's an 18mp crop camera it will mercilessly amplify every problem that might have occured when taking the shot. Such as atmosphere, motion blur missed focus (whether it's user error or AF error etc.). So when people look at the 100% crops they are disappointed.


https://photography-on-the.net …read.php?t=7992​84&page=13


Then how come you dont see 5dmkII users or 1DsIII users complain? I hope one day all DSLRS are FF :)


Ruben D. Zamora
Canon 6D Mark II, Canon 20-35L,Genesis 200 Strobe

  
  LOG IN TO REPLY
gabebalazs
Bird Whisperer
Avatar
7,643 posts
Gallery: 52 photos
Likes: 1070
Joined Nov 2008
Location: Toledo, OH
     
Jan 11, 2010 10:25 |  #15

AzzKicker wrote in post #9371080 (external link)
Then how come you dont see 5dmkII users or 1DsIII users complain? I hope one day all DSLRS are FF :)

You're right they don't complain as much. :)
Year for one, 5DII: FF. So there is no 1.6x angle of view magnification factor. 1DIII: 10 mp, again point made above about magnifying flaws on the 18mp 7D.
Another big reason is that I don't think 5d shooters shoot as much sports and birds in flight as 7D users. So less potential for motion blur.

But they do complain too. Just check out all the 5DII pattern noise complaint threads floating around.


SONY A7RIII | SONY A7III | SONY RX10 IV | SONY RX100 | 24-70 2.8 GM | 70-200 2.8 GM | 16-35 F/4 | PZ 18-105 F/4 | FE 85 1.8 | FE 28-70 | SIGMA 35 1.4 ART | SIGMA 150-600 C | ROKINON 14 2.8
Gabe Balazs Photo (external link)
Nature Shots Portfolio (external link)

  
  LOG IN TO REPLY
sponsored links (only for non-logged)

4,183 views & 0 likes for this thread, 13 members have posted to it.
Canon 7D Focus
FORUMS Cameras, Lenses & Accessories Canon Digital Cameras 
AAA
x 1600
y 1600

Jump to forum...   •  Rules   •  Forums   •  New posts   •  RTAT   •  'Best of'   •  Gallery   •  Gear   •  Reviews   •  Member list   •  Polls   •  Image rules   •  Search   •  Password reset   •  Home

Not a member yet?
Register to forums
Registered members may log in to forums and access all the features: full search, image upload, follow forums, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, all settings, view hosted photos, own reviews, see more and do more... and all is free. Don't be a stranger - register now and start posting!


COOKIES DISCLAIMER: This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and to our privacy policy.
Privacy policy and cookie usage info.


POWERED BY AMASS forum software 2.58forum software
version 2.58 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member is bzguy
1388 guests, 188 members online
Simultaneous users record so far is 15,144, that happened on Nov 22, 2018

Photography-on-the.net Digital Photography Forums is the website for photographers and all who love great photos, camera and post processing techniques, gear talk, discussion and sharing. Professionals, hobbyists, newbies and those who don't even own a camera -- all are welcome regardless of skill, favourite brand, gear, gender or age. Registering and usage is free.