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

 
FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras
Thread started 12 Nov 2014 (Wednesday) 14:59
Prev/next
sponsored links
(this ad will go away when you log in as registered member)

7D Mark II - Focus Discussions

 
Kickflipkid687
Senior Member
921 posts
Joined Jan 2014
Nov 12, 2014 14:59 |  #1

Hey guys,

Some of you probably saw my posts in the main 7D II thread, but I wanted to break this out into a new thread, to easily talk about and track this stuff.

If you don't know, I'm on my second 7D II body right now, since the first one was randomly front/back focusing on a static target, in One Shot, on a tripod, with mirror lockup/ect.

I went back and forth with my 60D and multiple lesnes for 2-3 hours and finally decided it was "defective" and swapped it out.

So far my second body seems to be totally fine. But I need to take it out this weekend and do some "real" shooting with it (wildlife) to be sure it's good.

I'll report my findings. But I'm curious to see who else has been noticing issues, or has returned/swapped theirs out as well?


My Flickr page - https://www.flickr.com​/photos/86957042@N07/external link

LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as registered member)
Keyan
Cream of the Crop
Keyan's Avatar
5,313 posts
Joined Mar 2011
Nov 12, 2014 15:08 |  #2

Thanks for starting this.

For those who didn't see it, a couple of users have reported the focus "rocking" in AI Servo and even in one shot on the same target it will vary randomly between on target, front, and back focusing. The focus doesn't "hit" consistently so you can't just MFA it out - it will be off in one direction or the other randomly with the same lens on the same subject.

Two of the users both got theirs from B&H, so it makes you wonder if there is a batch problem with a set of 7D2s.

My copy from Adorama does not do this - it hits consistently with focus (some lenses might require small MFA adjustments, but the camera hits a static target identically between focus lock ons after forcing it out of focus).


Cameras: 7D2, 70D, S100
Lenses: 17-55 f/2.8 IS USM, 18-55 STM, 18-135 STM, 24-70 f/4L IS USM, 50 f/1.4 USM, 55-250 IS, 70-300L IS USM
Other Stuff: 430 EX II, Luma Labs Cinch and Loop 3, CamRanger, Lowepro Fastpack 350 & Pro Messenger 200 AW

LOG IN TO REPLY
Archibald
Goldmember
Archibald's Avatar
Joined May 2008
Calgary
Nov 12, 2014 15:13 |  #3

Good to have this thread. Subscribed.


Hasselblad 500 C/M with 80mm/2.8 Zeiss Planar; Pentax Spotmatic F with 28/3.5, 50/1.4, 50/1.8, 135/3.5; Canon digital gear
Stamp out unnecessary question marks! (external link)
Picture editing OK

LOG IN TO REPLY
ksbal
Goldmember
ksbal's Avatar
Joined Sep 2010
N.E. Kansas
Nov 12, 2014 15:36 |  #4

subscribed also - but I'm thinking mine is all operator and learning the camera, should know more after this weekend.


YN622 English User Guide/Manual by Clive
https://drive.google.c​om ...Ig0gMMzZFaDVlZ1VNTE​0/view (external link)

LOG IN TO REPLY
moltengold
Goldmember
4,296 posts
Joined Jul 2011
Nov 12, 2014 15:44 |  #5

can anyone explain to me what is front and back focusing means ?
Thanks


| Canon EOS | and some canon lenses

LOG IN TO REPLY
Kickflipkid687
THREAD ­ STARTER
Senior Member
921 posts
Joined Jan 2014
Nov 12, 2014 15:47 |  #6

moltengold wrote in post #17268039external link
can anyone explain to me what is front and back focusing means ?
Thanks

You focus on a specific point, that the camera says is "in focus" or what should be in focus. But it's actually focused infront of or behind what you actually wanted.

This could be only millimeters in difference. Or inches/feet, depending on the distance you are from the subject. It depends how far off the camera/lenses are in calibration.


My Flickr page - https://www.flickr.com​/photos/86957042@N07/external link

LOG IN TO REPLY
Tom_D
Goldmember
Tom_D's Avatar
Joined Aug 2005
Napa ~ on the edge of retirement.
Nov 12, 2014 15:49 |  #7

moltengold wrote in post #17268039external link
can anyone explain to me what is front and back focusing means ?
Thanks

http://cameralightlens​.com/newsblog/?p=264external link


Gallery (external link)
7DMkII, 40D, 17-55, 70-200 f/2.8 IS and more...
More Wag, Less Bark

LOG IN TO REPLY
moltengold
Goldmember
4,296 posts
Joined Jul 2011
Nov 12, 2014 15:53 |  #8

Thanks a lot all
but if I have a great DOF when I shoot at f/8 and more
this issue will be nothing ? Right ?


| Canon EOS | and some canon lenses

LOG IN TO REPLY
Kickflipkid687
THREAD ­ STARTER
Senior Member
921 posts
Joined Jan 2014
Nov 12, 2014 15:55 |  #9

moltengold wrote in post #17268054external link
Thanks a lot all
but if I have a great DOF when I shoot at f/8 and more
this issue will be nothing ? Right ?

Depends on the focal length. If you're using a wider angle lens, you may or may not notice it as much.

But with my 600mm lens, even at F/8, DOF can be inches wide. So if my focus is off by millimeters or an inch, it's noticeable.
Also depends on the distance to the subject too.


My Flickr page - https://www.flickr.com​/photos/86957042@N07/external link

LOG IN TO REPLY
moltengold
Goldmember
4,296 posts
Joined Jul 2011
Nov 12, 2014 15:59 |  #10

Thanks for the info
I must study and learn about all of these information
I'm shooting in small and very close distance with macro photos
that's why I don't know so much about all of these information
Thanks again


| Canon EOS | and some canon lenses

LOG IN TO REPLY
Kickflipkid687
THREAD ­ STARTER
Senior Member
921 posts
Joined Jan 2014
Nov 12, 2014 16:02 |  #11

Ah. If you are manually focusing, it's not as big of a deal, but still worth checking out/knowing how it works.

But, if you are using AF to do your macro, then you could/would definitely notice it/have issues.


My Flickr page - https://www.flickr.com​/photos/86957042@N07/external link

LOG IN TO REPLY
John
Goldmember
John's Avatar
1,381 posts
Joined Oct 2006
Nov 12, 2014 16:11 |  #12

Had to set my 50mm 1.4 to +15 MFA. Which was a little surprising.

24-70 2.8 II and 70-200 2.8 IS II were pretty much spot on, maybe +1 for the 24-70.


john | gear | web hosting deal for POTN members!

LOG IN TO REPLY
moltengold
Goldmember
4,296 posts
Joined Jul 2011
Nov 12, 2014 16:11 |  #13

Thanks a lot
that's why I didn't notice any thing with all the bodies I have tried because I'm using manual focusing with macro


| Canon EOS | and some canon lenses

LOG IN TO REPLY
Bianchi
Goldmember
Bianchi's Avatar
Joined Jan 2010
USA
Nov 12, 2014 16:14 |  #14

Kickflipkid687 >>>Looks like you are all squared away getting your second copy.. Best of luck this weekend. Let us know how things go...


My Gear flickrexternal link

LOG IN TO REPLY
Kickflipkid687
THREAD ­ STARTER
Senior Member
921 posts
Joined Jan 2014
Nov 12, 2014 16:21 |  #15

Bianchi wrote in post #17268106external link
Kickflipkid687 >>>Looks like you are all squared away, getting your second copy.. Best of luck this weekend. Let us know how things go...

Thanks! Yeah, was testing last night and this morning again. So far it "seems" about spot on. At least compared to my 60D.

Actually in lower light, my 60D couldn't find/lock focus in AI Servo, but the Mark II did, and managed it pretty quick! So that is encouraging.


My Flickr page - https://www.flickr.com​/photos/86957042@N07/external link

LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as registered member)

995,096 views & 2674 likes for this thread
7D Mark II - Focus Discussions
FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras


Not a member yet? Click here to register to the forums.
Registered members get all the features: search, following threads, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, settings, view hosted photos, own reviews and more...


AAA

Send feedback to staff    •   Jump to forum...    •   Rules    •   Index    •   New posts    •   RTAT    •   'Best of'    •   Gallery    •   Gear    •   Reviews    •   Polls

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

POWERED BY AMASS 1.4version 1.4
made in Finland
by Pekka Saarinen
for photography-on-the.net
Spent 0.00097 for 4 database queries.
PAGE COMPLETED IN 0.09s
Latest registered member is toasty.dusty
1003 guests, 348 members online
Simultaneous users record so far is 6106, that happened on Jun 09, 2016