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 EOS Digital Cameras 
Thread started 03 Jan 2018 (Wednesday) 14:46
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

1DX MKII + 100-400 II + 2X Ext III

 
picworx
Goldmember
Avatar
1,123 posts
Likes: 4
Joined Jun 2005
Location: Ontario, Canada
     
Jan 03, 2018 14:46 |  #1

Am I hearing this right from Canon that this combo will allow auto-focus up to f8???

As the 1DX would not do that...



The Print is What Really Matters

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)
MalVeauX
"Looks rough and well used"
Avatar
12,729 posts
Gallery: 1114 photos
Best ofs: 3
Likes: 8161
Joined Feb 2013
Location: Florida
Post edited 6 months ago by MalVeauX.
     
Jan 03, 2018 14:49 |  #2

1D series can AF at F8 with center point since over a decade.

Didn't the 1DX get a firmware update that allows this in fashion with the previous 1D's?

(Derp, I see a 2X with a F5.6 is actually F11, nothing should officially AF with that via Canon's phase detect that I know of at this time, but contrast detect AF could work, ie, Live View; but F8 is totally possible with the 1D series with phase detect).

Very best,


My Flickr (external link) :: My Astrobin (external link)

  
  LOG IN TO REPLY
picworx
THREAD ­ STARTER
Goldmember
Avatar
1,123 posts
Likes: 4
Joined Jun 2005
Location: Ontario, Canada
     
Jan 03, 2018 15:00 as a reply to  @ MalVeauX's post |  #3

Not to my knowledge and in the store the 1DX MKII + 100-400 II + 2X EXT III only shows the center point and will not focus?

But according this video he says it will ???

https://www.youtube.co​m/watch?v=HYPnuDxpn48 (external link)

about 3:23 in on the video



The Print is What Really Matters

  
  LOG IN TO REPLY
Snydremark
my very own Lightrules moment
18,222 posts
Gallery: 44 photos
Likes: 1322
Joined Mar 2009
Location: Issaquah, WA USA
Post edited 6 months ago by Snydremark.
     
Jan 03, 2018 16:31 |  #4

The 100-400 + 2x TC gives you F11, not F8. That combo won't reliably autofocus on any body. You can attempt to work around it by taping off the pins that report the TC to the body and hope for the best; but it's going to be ridiculously slow to focus even then.

EDIT: Watched the video and I see your confusion now. The video *shows* a 2x TC while he's making that statement, but the important information there is what he SAYS "...a version 3 tele-extender...". He does not specify the 2x, only that he's referring to the v3 TCs overall; following that, you have to look closely at the chart that is shown, which shows the valid combination for the 100-400 is in fact the 1.4x TC rather than the 2x.

For the 100-400II + 1.4x III, I can most definitely confim *that* combination works ok at F8, although it is notably slower than the bare lens. I use that combination on a 7DII when the occasion calls for it, although being limited to center point AF only is sometimes a struggle.


- Eric S.: My Birds/Wildlife (external link) (7D MkII/5D IV, Canon 10-22 f/3.5-4.5, Canon 24-105L f/4 IS, Canon 70-200L f/2.8 IS MkII, Canon 100-400L f/4.5-5.6 IS I/II)
"The easiest way to improve your photos is to adjust the loose nut between the shutter release and the ground."

  
  LOG IN TO REPLY
picworx
THREAD ­ STARTER
Goldmember
Avatar
1,123 posts
Likes: 4
Joined Jun 2005
Location: Ontario, Canada
Post edited 6 months ago by picworx. (2 edits in all)
     
Jan 03, 2018 17:40 as a reply to  @ Snydremark's post |  #5

That explains it then the video should have shown the 1.4 extender III not the 2X, but the chart was right so if I decide on this combo I will have to replace my 1.4 extender II with a 1.4 extender III if I want all those extra points?



The Print is What Really Matters

  
  LOG IN TO REPLY
Snydremark
my very own Lightrules moment
18,222 posts
Gallery: 44 photos
Likes: 1322
Joined Mar 2009
Location: Issaquah, WA USA
     
Jan 03, 2018 17:53 |  #6

picworx wrote in post #18532763 (external link)
That explains it then the video should have shown the 1.4 extender III not the 2X, but the chart was right so if I decide on this combo I will have to replace my 1.4 extender II with a 1.4 extender III if I want all those extra points?

I would presume so; yes. I don't have a 1Dx to verify that on, but that seems to be what is said there.


- Eric S.: My Birds/Wildlife (external link) (7D MkII/5D IV, Canon 10-22 f/3.5-4.5, Canon 24-105L f/4 IS, Canon 70-200L f/2.8 IS MkII, Canon 100-400L f/4.5-5.6 IS I/II)
"The easiest way to improve your photos is to adjust the loose nut between the shutter release and the ground."

  
  LOG IN TO REPLY
apersson850
Cream of the Crop
Avatar
11,820 posts
Likes: 208
Joined Nov 2007
Location: Traryd, Sweden
     
Jan 04, 2018 05:27 |  #7

If you use a 1DX Mark II together with either the EF 100-400 mm f/4.5-5.6L IS USM or the newer EF 100-400 mm f/4.5-5.6L IS II USM, you'll get AF with all 61 AF points.
If you combine this setup with the EF 1.4X extender III, then you'll get the same. AF with all 61 points. This is class F AF for the 1DX Mark II.
However, if you use the EF 1.4X Extender, or the EF 1.4X Extender II, you'll get AF with nine points. This is class J AF with the 1DX Mark II.

As soon as you go to f/8 with the older 1DX, then you get AF with the center point, or center point expanded (four more points). The center point is the only one you can select in such a case.
So while both the 1DX and the 1DX Mark II have f/8 focusing capability, the kind of capability differs significantly.


Anders

  
  LOG IN TO REPLY
picworx
THREAD ­ STARTER
Goldmember
Avatar
1,123 posts
Likes: 4
Joined Jun 2005
Location: Ontario, Canada
     
Jan 04, 2018 13:00 as a reply to  @ apersson850's post |  #8

Thanks for this as I understand then the 2x is out of the equation if you want AF however the question is whether it is worth it to upgrade from a 1.4 II to a 1.4 III I guess it depends on what you shoot and whether the extra points is really worth it? 9 points is sill not bad



The Print is What Really Matters

  
  LOG IN TO REPLY
apersson850
Cream of the Crop
Avatar
11,820 posts
Likes: 208
Joined Nov 2007
Location: Traryd, Sweden
     
Jan 04, 2018 17:59 |  #9

There's a noticeable upgrade of image quality between Mark II and Mark III, I've been told. I only have the Mark III, so I can't compare myself.
Using live view, you can get AF even with f/11 as max aperture. Where this way of working is feasible.


Anders

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

1,905 views & 1 like for this thread
1DX MKII + 100-400 II + 2X Ext III
FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
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 NinaP
470 guests, 386 members online
Simultaneous users record so far is 6430, that happened on Dec 03, 2017

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.