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Teleconverter: Unhappy Ending
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Oct 1, 2019 11:54:58   #
cjc2 Loc: Hellertown PA
 
No surprise here. Some lenses, yours included, were just not designed for use with a TC, whether it fits physically or not. Along with multiplying the focal length, a 1.4 TC 'steals' one full stop of light, so your F5.6 becomes F8 when at the long end. Many AF systems will not work at that F stop. Now you know for sure. Best of luck.

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Oct 1, 2019 11:59:05   #
fetzler Loc: North West PA
 
I am not sure your reason for getting the teleconverter. ( unless they are designed for use with the lens they are a bad idea and even then.) I assume it is the extra reach. If you would like a light weight set up consider an Olympus or Panasonic body. I recently posted some zoo pictures made with my Pen F and 100-300mm Panasonic lens.

https://www.uglyhedgehog.com/t-612735-1.html

My set up is lighter that yours without the teleconverter. I know because I also have a D7200 and the 55-300mm lens

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Oct 1, 2019 12:03:31   #
Ballard Loc: Grass Valley, California
 
Waterboy23 wrote:
I recently asked for advice in the section on Main Photography Discussion for the possible purchase of a Nikon 1.7 teleconverter for my AF-S Nikkor 55-300mm f/4.5-5.6 G ED VR lens and Nikon D7100 body.

After digesting all of the suggestions and against the advice of all the well-meaning naysayers, I opted to buy a 1.4x Kenko teleconverter.

A few days ago, I visited the Cape May Zoo in New Jersey to test it out and the experience was a total disaster. I had to use manual focus and could only use F stops larger than F8. I had been forewarned but the experience was worse than I could imagine.

I'm going to return the Kenko as soon as possible but I thought I'd post a few of my shots anyway, the first three with the teleconverter on and the last two without it.

Number 1 is a female African lion, 2 & 3 is a golden lion tamarin monkey, and 4 & 5 are otters. I welcome any and all comments! Thanks in advance. Gene
I recently asked for advice in the section on Mai... (show quote)


Hi Waterboy23
The only time I have success with a teleconverter is with an f4 or better lens. Both the lens and the teleconverter have to have excellent quality since any imperfections get amplified. That said I've been very happy with the canon 2X teleconverter used with the canon 70-200mm f2.8 and the canon 500mm f4.0 lens. Needless to say these lens bust the bank for awhile (particularly the 500mm even though I bought it used, but it is a beautiful lens that is sharp all the way to the edge).

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Oct 1, 2019 13:02:35   #
cambriaman Loc: Central CA Coast
 
A lesson learned the hard way is a lesson remembered and not repeated.

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Oct 1, 2019 13:26:08   #
tommystrat Loc: Bigfork, Montana
 
woodworkerman wrote:
I guess you Otter know which images are the best.


And he's not lion!

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Oct 1, 2019 16:42:46   #
Feiertag Loc: British Columbia, Canada
 
I'm curious as to why you didn't take the advice given to you. What is the point in asking for help and then turn your back on them?

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Oct 1, 2019 21:16:37   #
woodweasel Loc: bellingham Wa
 
Interesting

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Oct 4, 2019 15:08:44   #
Waterboy23 Loc: Toms River, NJ
 
Feiertag wrote:
I'm curious as to why you didn't take the advice given to you. What is the point in asking for help and then turn your back on them?


Actually, the advice was mixed as some said I might be happy with the results even if I had to use manual focus.

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Oct 4, 2019 15:13:19   #
Waterboy23 Loc: Toms River, NJ
 
Ballard wrote:
Hi Waterboy23
The only time I have success with a teleconverter is with an f4 or better lens. Both the lens and the teleconverter have to have excellent quality since any imperfections get amplified. That said I've been very happy with the canon 2X teleconverter used with the canon 70-200mm f2.8 and the canon 500mm f4.0 lens. Needless to say these lens bust the bank for awhile (particularly the 500mm even though I bought it used, but it is a beautiful lens that is sharp all the way to the edge).
Hi Waterboy23 br The only time I have success with... (show quote)


Thanks for your thoughtful reply. If I ever go for a quality zoom like those you described, I might be tempted to consider a quality TC to extend it.

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Oct 4, 2019 15:15:46   #
Waterboy23 Loc: Toms River, NJ
 
cjc2 wrote:
No surprise here. Some lenses, yours included, were just not designed for use with a TC, whether it fits physically or not. Along with multiplying the focal length, a 1.4 TC 'steals' one full stop of light, so your F5.6 becomes F8 when at the long end. Many AF systems will not work at that F stop. Now you know for sure. Best of luck.


Yes, what you said is very true.Thanks for your reply!

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Oct 4, 2019 15:20:55   #
Waterboy23 Loc: Toms River, NJ
 
fetzler wrote:
I am not sure your reason for getting the teleconverter. ( unless they are designed for use with the lens they are a bad idea and even then.) I assume it is the extra reach. If you would like a light weight set up consider an Olympus or Panasonic body. I recently posted some zoo pictures made with my Pen F and 100-300mm Panasonic lens.

https://www.uglyhedgehog.com/t-612735-1.html

My set up is lighter that yours without the teleconverter. I know because I also have a D7200 and the 55-300mm lens
I am not sure your reason for getting the teleconv... (show quote)


I liked your zoo photos very much. I'll stick with my 55-300mm for now and forget the possibility of using a TC with it.

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Oct 4, 2019 15:30:24   #
Waterboy23 Loc: Toms River, NJ
 
olemikey wrote:
Just curious, did you try the built-in 1.3X crop that the D7100 has, and what did you think of it? Don't feel bad about the TC (esp. if you can return it) many of us have been there, and a few have stayed with them (and you had to try, right!). In your first post on this I think I mentioned having more than a half dozen of them, and I never use them. I use (on my D71&7200) built-in crop, PP crop, and on my Sony's I use the CIZ (Clear Image Zoom) which is a variable crop from 1X to 2X.


Yes, I've used the built-in 1.3x crop and I was happy with the results. I returned the TC and should be getting a refund although I had to pay for shipping.

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Oct 4, 2019 18:06:06   #
olemikey Loc: 6 mile creek, Spacecoast Florida
 
Waterboy23 wrote:
Yes, I've used the built-in 1.3x crop and I was happy with the results. I returned the TC and should be getting a refund although I had to pay for shipping.


Thanks for reply, I found it useful in place of TC's.

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