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
Index  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Guest
New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Register to forums    Log in

 
FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 13 Oct 2017 (Friday) 10:30
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

5D IV, 100-400 (and 70-300) with Kenko 1.4

 
davem01
Member
91 posts
Joined Jun 2008
Location: Bicester, Oxfordshire, UK
     
Oct 13, 2017 10:30 |  #1

anyone use this combination and getting over exposure by around 2 stops. Doesn't seem to over expose with the 24-104 but the 2 longer zooms its every time


My Gear: 5D mk iv, EF 24-105L, 70-300L, 100L IS Macro, 17-40L, 100-400L mkii

  
  LOG IN TO REPLY
TeamSpeed
01010100 01010011
Avatar
36,439 posts
Gallery: 108 photos
Best ofs: 2
Likes: 5551
Joined May 2002
Location: Midwest
Post edited over 1 year ago by TeamSpeed.
     
Oct 13, 2017 11:01 |  #2

Different lenses and different bodies all behave differently with aftermarket TCs. I haven't found the cause yet though. I have an older set of Kenko 1.4x and 2x, they work just fine on all 3 of my cameras and lenses, but the new YN III EF-copycat 2x over exposes on 2 of my 3 bodies with the 70-200 for example.

There are some communications going on with different cameras and these TCs that cause these problems I believe.

All 3 elements contribute to this issue, I feel. The camera, the lens and the TC...


Past Equipment | My Personal Gallery (external link) My Business Gallery (external link)
For Sale: Sigma USB Dock
For Sale: Ladies Thirty-One Camera Sling

  
  LOG IN TO REPLY
CheshireCat
Goldmember
Avatar
2,303 posts
Likes: 405
Joined Oct 2008
Location: *** vanished ***
     
Oct 13, 2017 11:18 |  #3

davem01 wrote in post #18471873 (external link)
anyone use this combination and getting over exposure by around 2 stops. Doesn't seem to over expose with the 24-104 but the 2 longer zooms its every time

Does it overexpose also in Live View mode ?


1Dx, 5D2 and some lenses

  
  LOG IN TO REPLY
TeamSpeed
01010100 01010011
Avatar
36,439 posts
Gallery: 108 photos
Best ofs: 2
Likes: 5551
Joined May 2002
Location: Midwest
Post edited over 1 year ago by TeamSpeed.
     
Oct 13, 2017 11:37 |  #4

In my case, live vew was always correct, because a different metering system is employed in that mode. Again, the exact recipe is a mystery, but now with the 7D2 and 5D4, I run the EC down 2-3 stops, and 0 with the SL2. The YN knockoff of the Canon 2x III is very good indeed, including the IQ, so I think I will keep it despite the issues.


Past Equipment | My Personal Gallery (external link) My Business Gallery (external link)
For Sale: Sigma USB Dock
For Sale: Ladies Thirty-One Camera Sling

  
  LOG IN TO REPLY
davem01
THREAD ­ STARTER
Member
91 posts
Joined Jun 2008
Location: Bicester, Oxfordshire, UK
     
Oct 13, 2017 13:03 |  #5

CheshireCat wrote in post #18471902 (external link)
Does it overexpose also in Live View mode ?

ummmm. Just tried it with my 17-40 and no issues. tried the 70-300 again and around 1.5 stops overexposed, then tried it in live view. The display is ok in live view but more worryingly the shot from live view was ok as well. Not sure what to think now!


My Gear: 5D mk iv, EF 24-105L, 70-300L, 100L IS Macro, 17-40L, 100-400L mkii

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

2,643 views & 1 like for this thread
5D IV, 100-400 (and 70-300) with Kenko 1.4
FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
AAA
x 1600
y 1600

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

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 2.1forum software
version 2.1 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member is Car147
936 guests, 202 members online
Simultaneous users record so far is 15144, 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.