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 20 Mar 2009 (Friday) 08:35
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

TC IQ exagerations

 
Alexei ­ TND
Senior Member
Avatar
776 posts
Likes: 1
Joined Jun 2008
Location: Switzerland Lucerne
     
Mar 20, 2009 08:35 |  #1

Just wanted to get something of my chest
it seems that Teleconverters, especially the 2x or more variants get an extremly bad rap. I was somewhat nervous when i got my kenko 2x TC and expected horribly soft images of doom.
But as ive slowly but surely seen its not quite as bad as its being said.
Yes the images loose somesharpness and sometimes arent that contrastfull, but this is easily remedied to more than acceptable levels in Photoshop.
Furthermore id much rather have a very slightly soft image, than no image.

So to all those unsure of wether to get a TC or not here are some tips:

1. They have a steep learnign curve, your first few images definately wont be as good, but youll get the knack of it soon
2. While i mentally aknowledged the 2 stops light loss i failed to take into consideration a very important thing, this made it much harder for me to get keepers at first.
Simply upping up the iso to comensate for the lower light isnt enough, you have to take into consideration that the focal length has now increased. So while for example a 1/200 iso 100 f/2.8 with 2 light stops alone would be fine at 1/200 iso 400 f/5.6, you now have a focal length of 400mm, so you need at least 1/400 or else camera shake will creep it and make your images soft.

Here are some shots taken with a 40D, a 70-200 2.8 is usm and a kenko 2x TC and imho it could be much worse and the bad rep is slightly exxagerated:

http://www.flickr.com …less-designer/3370418286/ (external link)
http://www.flickr.com …less-designer/3370418516/ (external link)
http://www.flickr.com …less-designer/3369595431/ (external link)

just my 0.02$


|My Flickr (external link)| EOS 5D, EOS 7D
Canon 70-200L 2.8 IS, 24-70L, 400 5.6L
Sigma 50 1.4, 12-24, 20 1.8
SpaceArt (external link)

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)
Bendel
Senior Member
Avatar
323 posts
Joined Jan 2008
Location: Wisconsin
     
Mar 20, 2009 08:46 |  #2

Those are after photoshop I am assuming?


Brandon
Canon 5D, 24-105 F4L, 70-200 F4L, 85 F1.8, 430EX II

  
  LOG IN TO REPLY
Alexei ­ TND
THREAD ­ STARTER
Senior Member
Avatar
776 posts
Likes: 1
Joined Jun 2008
Location: Switzerland Lucerne
     
Mar 20, 2009 08:48 |  #3

Bendel wrote in post #7561797 (external link)
Those are after photoshop I am assuming?

downsized and slightly sharpened

heres a 100% crop with no PP:

EDIT: Incidentaly does anyone knoe what species of bird this is?

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
HTTP response: NOT FOUND | MIME changed to 'image/png'

|My Flickr (external link)| EOS 5D, EOS 7D
Canon 70-200L 2.8 IS, 24-70L, 400 5.6L
Sigma 50 1.4, 12-24, 20 1.8
SpaceArt (external link)

  
  LOG IN TO REPLY
LostShootingStar
Goldmember
1,005 posts
Joined Jun 2007
     
Mar 20, 2009 09:08 |  #4

not a bad shot, but you can definitely tell it's softened a little bit. easily workable with some PP like you said though

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
MIME changed to 'text/html' | Content warning: script

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
MIME changed to 'text/html' | Content warning: script

IMAGE NOT FOUND
IMAGE IS A REDIRECT OR MISSING!
MIME changed to 'text/html' | Content warning: script



  
  LOG IN TO REPLY
Alexei ­ TND
THREAD ­ STARTER
Senior Member
Avatar
776 posts
Likes: 1
Joined Jun 2008
Location: Switzerland Lucerne
     
Mar 20, 2009 09:13 |  #5

LostShootingStar wrote in post #7561934 (external link)
not a bad shot, but you can definitely tell it's softened a little bit. easily workable with some PP like you said though
IMAGE NOT FOUND
HTTP response: NOT FOUND | MIME changed to 'text/html' | Content warning: script

IMAGE NOT FOUND
HTTP response: NOT FOUND | MIME changed to 'text/html' | Content warning: script

IMAGE NOT FOUND
HTTP response: NOT FOUND | MIME changed to 'text/html' | Content warning: script

exactly
it takes PP very well, and soft shot > no shot any day


|My Flickr (external link)| EOS 5D, EOS 7D
Canon 70-200L 2.8 IS, 24-70L, 400 5.6L
Sigma 50 1.4, 12-24, 20 1.8
SpaceArt (external link)

  
  LOG IN TO REPLY
tkbslc
Cream of the Crop
24,567 posts
Likes: 18
Joined Nov 2008
Location: Utah, USA
     
Mar 20, 2009 09:27 |  #6

Alexei TND wrote in post #7561966 (external link)
exactly
it takes PP very well, and soft shot > no shot any day

Unless it is too soft to use at all, but in general I agree with you. This forum (and many others) seem to get WAY too hung up on minute differences in image quality and sharpness. So you take an very sharp shot and reduce it to average sharpness by adding a TC, big deal.


Taylor
Galleries: Flickr (external link)
60D | ELPH 330 | iPhone 5s

  
  LOG IN TO REPLY
ed ­ rader
"I am not the final word"
Avatar
23,248 posts
Gallery: 4 photos
Likes: 506
Joined May 2005
Location: silicon valley
     
Mar 20, 2009 10:51 |  #7

Alexei TND wrote in post #7561966 (external link)
exactly
it takes PP very well, and soft shot > no shot any day

that depends. if i'm working for a newspaper and i have to get the shot i will gladly accept a soft shot.

otherwise no. soft shot = no shot.

ed rader


http://instagram.com/e​draderphotography/ (external link)
5D4, 80d, 16-35L F4 IS, 24-70L II, 70-200L F4 IS II, 100-400L II, sigma 15 FE, sigma 14 f1.8 art, tc 1.4 III, 430exII, gitzo 3542L + markins Q20, gitzo GT 1545T + markins Q3T, gitzo GM4562

  
  LOG IN TO REPLY
CountryBoy
"Tired of Goldmember label"
Avatar
5,168 posts
Joined May 2006
Location: Okie
     
Mar 20, 2009 11:26 |  #8

I've been playing with the Sigma 2x converter on my Sigma 100-300mm f.4 lens, with mixed results. F/10 seemed to be the sweet spot @ 600mm . As I got use to manual focusing, I obtained better results. With a little PP, they where ok.

But I would rather have the 400mm f/5.6 with a 1.4 tc. Because OK, is not really good enough.


Hi

  
  LOG IN TO REPLY
Fiddlefingers
Member
Avatar
195 posts
Joined Dec 2008
Location: Scotland
     
Mar 20, 2009 12:07 |  #9

It looks like a Great Crested Grebe to me, but I'm no expert.


http://www.tomgilland.​co.uk (external link)

  
  LOG IN TO REPLY
5Dmaniac
Goldmember
Avatar
1,303 posts
Likes: 1
Joined Oct 2008
Location: Scottsdale, AZ
     
Mar 20, 2009 12:14 |  #10

I use a 2x on my 500L when I am desperate - but really only then. Even in your shot, as down sized as it is, it is clearly visible that the image is soft. Just look at the feathers - they are smudged and not really clearly defined. I have yet to print any of my 2x converter shots - I am just not happy with them and frankly, neither should you.




  
  LOG IN TO REPLY
GyRob
Cream of the Crop
10,075 posts
Likes: 893
Joined Feb 2005
Location: N.E.LINCOLNSHIRE UK.
     
Mar 20, 2009 12:45 |  #11

GT Crested Grebe .
your second shot of it is very nice.
but i do agree with 5Dmaniac theres no detail in the shot posted but as a record shot yes you have that.
Rob.


"The LensMaster Gimbal"
http://www.lensmaster.​co.uk/rh1.htm (external link)

  
  LOG IN TO REPLY
Alexei ­ TND
THREAD ­ STARTER
Senior Member
Avatar
776 posts
Likes: 1
Joined Jun 2008
Location: Switzerland Lucerne
     
Mar 20, 2009 13:33 |  #12

ive printed out several 10x15 shots and from the Grebe an a4 print
it looks better on Photopaper than it does on the screen
maybe its just that i dont mind if my images arent tack laser sharp so i dont mind teh TC effect, guess its just a personal preference choice, sinc ei dont do any of my wildlife shots for profit and its just a hobby atm ( if i were doing this professionally id probably have the 500 L :D or if i won the lottery)

either way the 2x TC is just to hold me over till i can get me a 400 f/5.6, then itll only be used occasionally with the 400 to take moonshots, i got it for free so why not eh? :D


|My Flickr (external link)| EOS 5D, EOS 7D
Canon 70-200L 2.8 IS, 24-70L, 400 5.6L
Sigma 50 1.4, 12-24, 20 1.8
SpaceArt (external link)

  
  LOG IN TO REPLY
bobbyz
Cream of the Crop
19,909 posts
Likes: 2294
Joined Nov 2007
Location: Bay Area, CA
     
Mar 20, 2009 16:06 |  #13

2x work only on something like canon superteles. Even then you need to stop down. Here is one with 2xTC on my 500mm f4 IS, hand held from car.

IMAGE: http://www.bobbyzphotography.com/img/v0/p166108837-5.jpg

5dmk3, 35L, 85L II, 300mm f2.8 IS I, 400mm f5.6
Fuji XT-1, 14mm f2.8, 23mm f1.4, 35mm f1.4, 56mm f1.2, 90mm f2, 50-140mm f2.8

  
  LOG IN TO REPLY
vadim_c
Senior Member
716 posts
Joined Feb 2009
     
Mar 20, 2009 16:18 |  #14
bannedPermanent ban

Alexei TND wrote in post #7561812 (external link)
downsized and slightly sharpened

heres a 100% crop with no PP:

So why does not the exif say 400 mm ?


Exif Internet Explorer Addon (external link).

  
  LOG IN TO REPLY
Scott111184
Senior Member
Avatar
729 posts
Joined Jan 2006
Location: Harker Heights, TX
     
Mar 20, 2009 16:29 as a reply to  @ vadim_c's post |  #15

The 70-200 does lose AF speed and "some" IQ but my first time out with the 70-200 f/2.8L IS and Canon 2X I was very pleased with the results. These are pp'd but how often do you post images that haven't been? These were all taken at f/5.6 if I remember correctly...

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



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


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

8 f-e | 24-70 | 30 |100 | feedback: ebay (external link) 1 2 3

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

2,750 views & 0 likes for this thread
TC IQ exagerations
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 Guashumerda
791 guests, 197 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.