BetterPhoto Q&A
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Photography Question 
Heather McCrory
BetterPhoto Member Since: 10/5/2005
 

Teleconverters, good or bad?


I recently asked a question about telephoto lenses and got some excellent answers. I was wondering what peoples thoughts of teleconverters are.


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2/4/2006 2:49:33 PM

 
Gregory LaGrange
BetterPhoto Member Since: 11/11/2003
gregorylagrange.org
 
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2/4/2006 3:37:27 PM

 
Peter M. Wilcox
BetterPhoto Member Since: 5/30/2005
  Well, TANSTAAFL, they come with a cost. First, they will slow your lens down. A 1.4x TC will reduce maximum speed by one stop, a 2x TC will slow a lens by 2 stops. Second, they may reduce the quality of the picture. Any errors in the imaging of the lens will be magnified. Be careful of third party TC's, a TC from the manufacturer of the lens/camera will probably do a better job. They are useful and a reasonable addition to your kit.


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2/4/2006 3:43:43 PM

 
Gregory LaGrange
BetterPhoto Member Since: 11/11/2003
gregorylagrange.org
  Left out a quotation mark or something, but said what Roger Ebert just said.


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2/4/2006 3:49:06 PM

 
Terry  R. Hatfield
BetterPhoto Member Since: 1/4/2003
  1.4x Teleconverters Aren't To Bad,A Loss Of Only One Stop And The Clarity Doesnt Suffer To Bad (With The Major Manufacturer's Tele's, IE Nikon, Canon)
I Havent Used The 1.7x Converters To Say One Way Or The Other,And The 2.0x Just Isnt That Great Heather..


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2/4/2006 4:09:05 PM

 
David Earls   Read John Shaw's Nature Photography for a full discussion of the pros and cons of teleconverters.

Hint: he uses them.


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2/4/2006 8:52:30 PM

 
Carolyn  M. Fletcher
BetterPhoto Member Since: 10/6/2001
Contact Carolyn
Carolyn 's Gallery
PickYourShots.com
  I have a 1.7X for my Sony. It's fair to middling, but leaves a bit to be desired. If I had it to do over, I doubt if I'd buy it.


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2/5/2006 3:04:05 AM

 
Bob Cammarata
BetterPhoto Member Since: 7/17/2003
  I have a TC-201 and a TC-301 which I use quite often. Both are 2x teleconverters and lose two stops as previously mentioned.
You can get acceptable,...even good to great results when matched with a good quality lens and a solid support.

As Terry mentioned, matching brands really helps also.

The losses in image quality you will experience most often will be due to camera movement,...especially with a telephoto and a 2x. Your camera/lens combo has to be ROCK STEADY,..even at the faster shutter speeds or your images tend to be a little fuzzy.


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2/5/2006 3:46:08 AM

 
anonymous A.    No question in my mind: the reported loss in quality and speed is an acceptable price to pay or a very small, relatively inexpensive, useful addition to your kitbag. I have used them for m any years and they have time and again made wildlife, birds and sports shots possible where I would otherwise have had to put my camera away.
A computer screen is not the best place to judge image quality, but the 3 pictures of the lioness stalking (page 9), the Puma (page10) Wave Rider (Page 8) in my gallery are all examples shot with a 2x televerter.


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2/5/2006 4:34:03 AM

 
Craig  Paulsen   they're grrrrrreat


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2/5/2006 12:46:03 PM

 
anonymous A.    Just by way of clarification... there is a very big difference between a front element (screw-on) attachment like the 1.7x designed for non-SLR cameras (like the Sony). They are cheaper, have less effect on light transmission but are not nearly in the same class optically as rear-fitted teleconverters.


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2/5/2006 1:10:15 PM

 
Samuel Smith
BetterPhoto Member Since: 1/21/2004
  i have a 1.4 and a 2x .the 1.4 will still work with autofocus but the 2x will only work in manual mode.at least with my cameras.and they are nice to have for that extra reach.
wonder where siskel is?
sam


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2/5/2006 7:55:11 PM

 
Robyn Gwilt
BetterPhoto Member Since: 7/15/2005
  Anyone got comments on the Canon 2x converter to use with the 70-200 F2.8 IS USM lens? I love the lens, but as I've the opportunity to shoot wildlife, sometimes just need the extra va va voom!!! I figured a 2x will give me about a 640mm on my 350D, which should do nicely. As I'll be shooting most in harsh sun, losing the 2 F stops shouldn't be a problem? THanks


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5/22/2006 12:57:36 PM

 
Oliver Anderson
BetterPhoto Member Since: 11/16/2004
  I use the 1.4X on my 70-200 2.8 & 2.8IS and love it. It is great to photograph motorsports and can't imagine not using it. The cycle photos in my gallery were photographed with the non (IS) because I packed the wrong lens for the weekend. You'll see that even losing 1 stop isn't too bad when trying to photograph cycles flying by at 100+ MPH.


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5/22/2006 1:35:15 PM

 
Christopher A. Vedros
BetterPhoto Member Since: 3/14/2005
  Robyn,
I think a 2x teleconverter would work well for you. I don't have the Canon lens you have, but I have a Sigma 70-200mm f/2.8 with a Sigma 2x tele. The BAD HAIR DAY picture in my gallery was taken with this combo, with the camera supported on a monopod. I'm very pleased with the 2x tele.

Chris Vedros
www.cavphotos.com


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5/22/2006 2:57:06 PM

 
Robyn Gwilt
BetterPhoto Member Since: 7/15/2005
  Thanks Oliver and Chris - just what I wanted to hear :) Going to check Bad Hair Day now.......


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5/22/2006 10:12:37 PM

 
Oliver Anderson
BetterPhoto Member Since: 11/16/2004
  Yep, I've heard that bird spends a lot of time in the mirror gettin that do just right.


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5/22/2006 10:37:59 PM

 
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