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 02 Oct 2008 (Thursday) 21:23
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

CANON 100-400 LENS

 
jdcbgc
Member
151 posts
Joined Mar 2006
Location: Oregon
     
Oct 02, 2008 21:23 |  #1

I'm considering buying a canon 1.4 teleconverter for the 100-400 canon lens. Some say it won't work on this lens. Others say it will but you woun't have automatic focus. Which is true? If some of you have this combination I would like to hear what you think of it.




  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)
Headshotzx
Goldmember
Avatar
4,488 posts
Likes: 126
Joined Dec 2007
Location: Singapore
     
Oct 02, 2008 22:53 |  #2

jdcbgc wrote in post #6427120 (external link)
I'm considering buying a canon 1.4 teleconverter for the 100-400 canon lens. Some say it won't work on this lens. Others say it will but you woun't have automatic focus. Which is true? If some of you have this combination I would like to hear what you think of it.

Fact #1: It will be mountable
Fact #2: Autofocus will not work on non-1D or professional film bodies
Fact #3: Autofocus can be tricked into working slowly by taping up the pins.
Fact #4: Image quality will not be that good, considering that 400mm on the lens isn't very good (subjective, ymmv) already.


Zexun | Flickr (external link) | YouTube (external link) |

  
  LOG IN TO REPLY
ed ­ rader
"I am not the final word"
Avatar
22,755 posts
Gallery: 3 photos
Likes: 297
Joined May 2005
Location: silicon valley
     
Oct 02, 2008 22:57 |  #3

jdcbgc wrote in post #6427120 (external link)
I'm considering buying a canon 1.4 teleconverter for the 100-400 canon lens. Some say it won't work on this lens. Others say it will but you woun't have automatic focus. Which is true?If some of you have this combination I would like to hear what you think of it.

i have the lens and the 1d mark III. i don't use it with TC because the IQ isn't to my standards.

ed rader


http://instagram.com/e​draderphotography/ (external link)
5D4, 80d, 16-35L III, 24-70L II, 70-200L F4 IS, 100-400L II, sigma 15mm FE, 35mm ef-s macro, tc 1.4 III, 430exII, gitzo 3542L, gitzo GM4562, markins Q10, markins Q3, kirk, really right stuff, sirui

  
  LOG IN TO REPLY
weka2000
Is that a 300mm in your pocket?
Avatar
20,608 posts
Gallery: 7 photos
Likes: 65
Joined Sep 2005
Location: Auckland
     
Oct 03, 2008 00:10 |  #4

Headshotzx wrote in post #6427612 (external link)
Fact #3: Autofocus can be tricked into working slowly by taping up the pins.

If you use fact #3 remember it can burn out the motor due to the strain of trying to focus.


https://500px.com/tony​searle/galleries (external link)

  
  LOG IN TO REPLY
S_Egbert
Member
Avatar
224 posts
Likes: 1
Joined Feb 2007
Location: Oregon
     
Oct 03, 2008 04:47 |  #5

I have this lens and use it with a Kenko 1.4 converter. With the pins taped it will focus quite well in good light. If it struggles I go to manual focus.
I chose the Kenko because it will fit many more lenses than the Canon due to Canon's protruding element on the front side.

Steve


Steve

  
  LOG IN TO REPLY
jsinon
Goldmember
Avatar
1,008 posts
Gallery: 6 photos
Best ofs: 2
Likes: 65
Joined Jun 2008
Location: Farmington, NH
     
Oct 03, 2008 04:49 |  #6

I get excellent results at 400 with mine, my standards must be too low. I've also seen som e really nice pics posted here taken with a 1.4 added. I personally am thinking of getting one but will stick with manual focus.


Fuji X-T2, Fuji X-Pro1, XF18-55, XF10-24, XF50-140
http://www.jeffsinon.c​om/ (external link)
http://jeffsinonphotog​raphy.wordpress.com/ (external link)

  
  LOG IN TO REPLY
johnz
Senior Member
Avatar
529 posts
Joined Sep 2006
Location: Tampere, Finland
     
Oct 03, 2008 05:13 |  #7

I have the 1.5x TC from Kenko, the center focus point does not work but other do, but they require a lot of light and contrast.

Here's a few sample moon shot, same amount of sharpening in all of them.

100-400L @ 390mm NO TC

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO


100-400L @ 400mm with 1.5X TC
I think this sample proves that you can get more detail in your image with a tc, even though it does make the image softer.
IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO


And this is the Field of view difference with and without a tc.
IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: 404 | MIME changed to 'text/html' | Byte size: ZERO

- Tuomas Gustafsson
My smugmug (external link) - ( still on the works )
My gear list/ DOF calculator for Nokia phones
With Canon you can... spend all your money on glass.

  
  LOG IN TO REPLY
jdcbgc
THREAD ­ STARTER
Member
151 posts
Joined Mar 2006
Location: Oregon
     
Oct 03, 2008 08:11 |  #8

Thanks, I think I could live with the manual focus. Still not sure about the image quality. I like a pretty sharp picture also. If any one would care to post some more pictures with this combination I would like to see them.




  
  LOG IN TO REPLY
rdricks
Senior Member
Avatar
545 posts
Gallery: 1 photo
Likes: 30
Joined Aug 2006
Location: Silicon Valley
     
Oct 03, 2008 08:28 as a reply to  @ jdcbgc's post |  #9

I use the combination sometimes. I don't mind the manual focus. But there is definitely image degradation. If I really need the length I add it, but only if I need that extra length.

Here is a shot with the combination. It is allright, but if you look closely it is not as sharp as it could be, definitely not as sharp as it would have been without the converter.

IMAGE: http://farm4.static.flickr.com/3146/2466069678_53603186c7.jpg

-Ryan
flickr (external link)

  
  LOG IN TO REPLY
Heffe
Member
222 posts
Joined Jun 2008
Location: Connecticut USA
     
Oct 03, 2008 08:30 |  #10

Mr UPS is on the way with one to my door today. I will take some pics today and see how it goes.


Jeff*
40D, 100 f2.8 Macro, 17-40 f4L, 100-400 4.5-5.6L IS
http://gallery.me.com/​jeffreyheatherstairs#g​allery (external link)

  
  LOG IN TO REPLY
liquidstone
insane Bird photographer
Avatar
1,088 posts
Likes: 95
Joined Dec 2005
     
Oct 03, 2008 09:17 |  #11

Headshotzx wrote in post #6427612 (external link)
Fact #4: Image quality will not be that good, considering that 400mm on the lens isn't very good (subjective, ymmv) already.

"considering that 400mm on the lens isn't very good (subjective, ymmv) already."


This was taken with a 1DM2 + 100-400 at 400 mm, wide open and hand held. I've printed it to 20"x30" for a museum exhibit, and feather detail is still very good when seen from 10 inches away. I won't hesitate to print it to 24"x36" if necessary.

Processed 100% crop (EXIF intact):

IMAGE: http://www.pbase.com/liquidstone/image/94096865/original.jpg




Here's the 20"x30" print on the museum wall (the smaller ones are 12"x15"):

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: NOT FOUND | MIME changed to 'image/gif' | Redirected to error image by FLICKR




For a sense of scale, here are other 12"x15" photos being mounted in the same museum exhibit:

IMAGE: http://farm4.static.flickr.com/3270/2823721875_679a949554.jpg

Romy Ocon, Philippine Wild Birds (external link)
Over 260 species captured in habitat, and counting.

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

2,499 views & 0 likes for this thread
CANON 100-400 LENS
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 Lyndsy986
921 guests, 408 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.