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 30 Apr 2014 (Wednesday) 09:39
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

Canon 2x III extender w/ 70-200 F2.8 II results in soft image

 
Omar ­ N
Hatchling
Avatar
8 posts
Joined Jan 2013
     
Apr 30, 2014 09:39 |  #1

Hi all,

I have a problem with my canon 2x III extender and 70-200 F2.8 II lens, in that this combination always results in a soft image no matter what I try. No matter what, I cannot get anything in focus. It comes close, but it's always slightly blurred. My question is, is this normal? I've seen results where this combination seems to work well with other people, but I can't figure out what's wrong with mine. Does anyone have any suggestions, or experienced anything similar? The lens by itself is fine, it's only with the extender that it is soft. The obvious answer here seems to be that the extender is bad, but I bought it brand new and unfortunately don't have any other lens to test it with.

I will be sure to post example shots when I get home from work.

All help greatly appreciated!

Thank you,

Omar




  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)
gasrocks
Cream of the Crop
Avatar
13,431 posts
Likes: 1
Joined Mar 2005
Location: Portage, Wisconsin USA
     
Apr 30, 2014 12:01 |  #2

Yes, examples will help. What are you shooting? At what settings?


GEAR LIST
_______________

  
  LOG IN TO REPLY
MNUplander
Goldmember
2,527 posts
Gallery: 10 photos
Likes: 107
Joined Oct 2009
Location: Duluth, MN
     
Apr 30, 2014 14:55 |  #3

A 2x extender will definitely degrade image quality and AF speed, even with the new lens and TC you have...it's just the nature of the beast. Although, some users have reported this combination to be very useable so I think we need have the circumstances (EXIF please) and view samples to determine if what you're seeing is the norm.


Lake Superior and North Shore Landscape Photography (external link)
Buy & Sell Feedback
6D, 16-35 f4 IS, 50 1.2, 100L Macro, 150-600C

  
  LOG IN TO REPLY
Snydremark
my very own Lightrules moment
18,491 posts
Gallery: 47 photos
Likes: 1526
Joined Mar 2009
Location: Issaquah, WA USA
     
Apr 30, 2014 15:08 |  #4

It isn't that it is bad, or that anything is even broken. It just has to do with how well within tolerances your body, lens and the TC are. While some folks get fine results with TCs on zooms, I wouldn't recommend them; any time you add glass to a rig you increase the loss of clarity/contrast/fidel​ity in the final image.

Some examples and info on what body and settings you are using may help get things to a place you're happier with, but I suspect you may need to try another copy or so of the TC to get one that mates well with your system. I had the same issue when the new TCs came out; wound up sticking with the 100-400 instead.


- 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
Nick_Reading.UK
Senior Member
Avatar
836 posts
Likes: 1
Joined Nov 2011
Location: Reading, Berkshire, UK
     
Apr 30, 2014 17:03 |  #5

Which camera? Shutter speed??
I tried the exact same extender on my 70-200 once in a shop in San Fran near Pier39 and was so disappointed I didn't buy.. But I am sure it was down to a sh1te copy


EOS 5Dmk3 X2, 60D, EF24-70mm f2.8L mk2, EF70-200mm f2.8L IS mk2, EF85mm f1.8, EF50mm f1.4, EF50mm f1.8 mk1(350D with 18-55mm Sh"kit" lens).
Speedlite 600EX-RT, 430EX II Flash. manfrotto 190XDB tripod, Giottos GTMML 3290B Monopod, B+W 77mm 110 Single Coated filter, Hama 77mm Variable Neutral Density Filter.

  
  LOG IN TO REPLY
Tapeman
Sliced Bread
Avatar
3,722 posts
Gallery: 2 photos
Likes: 124
Joined Jan 2004
Location: Twin Cities
     
Apr 30, 2014 22:01 |  #6

Not the best way to get to 400mm, but I have gotten many nice images with that combo.


Canon G1X II, 1D MKIV, 5DSR, 5DIV, 5D MKII, 16-35/2.8L II, 24-70/2.8L II, 70-200/2.8L IS II, IS, 100-400/4.5-5.6 L IS II, 500/4 L IS II, 24-105/4 IS, 50/2.5 macro, 1.4x MKII, 1.4X MKIII, 2X MKIII,580EX II, 550EXs(2), ST-E2.
Gitzo 1228, 1275, 1558, Lensbaby 3G. Epson 3880, Bags that match my shoes.:)

  
  LOG IN TO REPLY
Invertalon
Cream of the Crop
Avatar
6,495 posts
Likes: 21
Joined Jun 2009
Location: Cleveland, OH
     
May 01, 2014 10:59 |  #7

The IQ with a 2x III is less, but often stopping down to f/7.1 sharpens it up quite a bit. Excellent results in my experience with the 70-200 II. Don't expect very sharp results wide open like you would without the TC.


-Steve
Facebook (external link)
Flickr (external link)

  
  LOG IN TO REPLY
gasrocks
Cream of the Crop
Avatar
13,431 posts
Likes: 1
Joined Mar 2005
Location: Portage, Wisconsin USA
     
May 01, 2014 11:12 |  #8

Yes, exactly the reason we are asking the OP for settings.


GEAR LIST
_______________

  
  LOG IN TO REPLY
soundsubs
Member
33 posts
Joined Mar 2013
     
May 01, 2014 11:18 |  #9

hmmm. not my experience at all.
in fact, id say with that exact combo, ive shot the sharpest photos I've ever done.

are you using a tripod?
is image stabilization on or off?


denverlens.com Canon rentals / 5D mkIII / 8-15L /16-35L ii / 40 / 50 1.8 / 24-70L ii / 135L / 85L ii / 70-200L ii / EF extender III

  
  LOG IN TO REPLY
Zivnuska
Goldmember
Avatar
3,650 posts
Gallery: 72 photos
Likes: 599
Joined Oct 2007
Location: Wichita, Kansas
     
May 01, 2014 11:46 |  #10

gasrocks wrote in post #16872548 (external link)
Yes, examples will help. What are you shooting? At what settings?


Please.


www.zivnuska.zenfolio.​com/blog (external link) = My Blog
Gear List
www.zivnuska.zenfolio.​com (external link)

"It's not tight until you see the color of the irides."

  
  LOG IN TO REPLY
Omar ­ N
THREAD ­ STARTER
Hatchling
Avatar
8 posts
Joined Jan 2013
     
May 01, 2014 22:26 as a reply to  @ Zivnuska's post |  #11

Hello all, and thank you for the great responses! This definitely got me thinking critically of some of my practices rather than just blaming the lens, though I am still not sure what it is.

I shoot on the Canon 5D Mark 3, and typically shoot with this combination wide open, mind you wide open is 5.6 with the extender, and I generally shoot with a shutter speed of around 125 - 200 for most outdoor shots. I always use image stabilization, so maybe on my next round of tests I should try with it off. I also shoot all handheld for the most part.

I twist the focus ring manually and even in the viewfinder as I am searching for focus, it just never seems to line up. There are some very rare occasions where the subject will be in sharp focus, the ratio is probably somewhere around 30:1. Most of the shots just dont look right. I posted some examples of some random snaps I took around the house where as you can see, they are just not quite there is terms of focus.

One thing to note is that the 70-200 lens was dropped last year and seemed to have focusing problems as a result, but I sent it to Canon and had them repair it for $500, and since the lens by its self is OK, I do not think that would be a factor.

All input is greatly appreciated!

https://www.flickr.com …082771841/in/ph​otostream/ (external link)

https://www.flickr.com …085961235/in/ph​otostream/ (external link)




  
  LOG IN TO REPLY
Lloydd
Senior Member
379 posts
Likes: 148
Joined Nov 2010
Location: Wellington, New Zealand
     
May 01, 2014 22:43 |  #12

Try something well lit, with a faster shutter speed and IS off just to rule things out. Wide open is never going to be the best with a 2x on.

The backlit flower looks soft, though it's not nice lighting for it and the shutter speed isn't the best, plus it's shot wide open. The cat looks to have some very slight motion blur if you're zoomed right in, shutter speed is fairly slow, it's wide open and high ISO. Not really the best test for lens sharpness.

Try in daylight, decent lighting, 1/800 at f/8 with IS off if possible and see how things are looking then.




  
  LOG IN TO REPLY
K ­ Soze
Goldmember
Avatar
1,783 posts
Gallery: 83 photos
Best ofs: 1
Likes: 3788
Joined Dec 2011
     
May 02, 2014 14:59 |  #13

Lighting is an issue in both and I think camera shake is present too. I have shot with the combo you are taking about at zoos and gotten decant results. Not tack sharp but ok.

https://www.flickr.com …s/jimburnsorg/9​017687768/ (external link)


I try to make art by pushing buttons

  
  LOG IN TO REPLY
CrossEyedPhotography
Member
Avatar
206 posts
Joined Dec 2007
Location: Burbank, CA
     
May 02, 2014 15:22 |  #14

Here is something that helped me out a lot using an extender:

Plug your camera in to your computer and open EOS Utilities (the software program by Canon)

Click on Camera Settings > Len Aberration Correction

Make sure the lens combo is checked 2x III extender and 70-200 F2.8 II lens...

If it was not your images will look 100% better...

good luck! :)


- Andrew
www.Cross Eyed Photography.com (external link)
My Gear: Hasselblad H3DII-39, Canon EOS 1N-RS, 5D Mark III, 30D, S95, 14 2.8L II, 24-70 2.8L II, 70-200 2.8L IS II, 85 1.2L II, 200 2LIS, 580EXII Flash and a bunch of Alien Bee's

  
  LOG IN TO REPLY
Omar ­ N
THREAD ­ STARTER
Hatchling
Avatar
8 posts
Joined Jan 2013
     
May 03, 2014 19:32 as a reply to  @ CrossEyedPhotography's post |  #15

Hello all,

Thanks for the awesome responses!

I took your guys' advice to heart, and thankfully it looks like the photos are a bit sharper!

Lloyd, the settings you recommended seemed to really help! I guess I just wasn't aware that photos taken at f5.6 at 125-200 shutter speed require an extremely steady hand.

CrossEyedPhotography, I also attempted to fix the chromatic abrasion using the steps you outlined, so I am not sure if this helped solve the problem or not!

Here are some examples of shots that I took with your guys' advice in mind:

https://www.flickr.com …81098146@N05/14​100187554/ (external link)

https://www.flickr.com …096541051/in/ph​otostream/ (external link)

https://www.flickr.com …913110517/in/ph​otostream/ (external link)

https://www.flickr.com …119839353/in/ph​otostream/ (external link)

https://www.flickr.com …119843073/in/ph​otostream/ (external link)

It seems that still at f5.6 and 125-200 shutter speed, the shots are still a bit blurry. It almost seems like something is misaligned, as you may be able to tell from the shot that I attached to this post.

Can anybody else tell me the settings they typically use when shoot at 400mm or farther?

Thank you!


HOSTED PHOTO
please log in to view hosted photos in full size.




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

7,263 views & 0 likes for this thread
Canon 2x III extender w/ 70-200 F2.8 II results in soft image
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 dayuan99
1692 guests, 314 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.