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Dec 11, 2013 11:13:28   #
conniep
 
i hope some one can help me out here. i was wanting to get a better telephoto lens and right now cannot afford it. i was at bestbuy the other day and a geeksquad fellow suggested a 2x converter. but told me to be sure it was a canon converter since that is the camera brand i have. then after i get one, i read in another thread that a converter can mess up a lens. now i have 2 questions.

1. how do you know if your lens can use a converter with out messing it up?

2. how does it mess it up? that is the part that has me confused.

anyway, any advice is greatly appreciated.

thanks

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Dec 11, 2013 11:22:36   #
Linda From Maine Loc: Yakima, Washington
 
I would go straight to the source: Canon. Here is a link to phone numbers:
http://www.usa.canon.com/cusa/consumer/standard_display/contact_by_phone

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Dec 11, 2013 11:31:02   #
Wall-E Loc: Phoenix, AZ
 
conniep wrote:
i hope some one can help me out here. i was wanting to get a better telephoto lens and right now cannot afford it. i was at bestbuy the other day and a geeksquad fellow suggested a 2x converter. but told me to be sure it was a canon converter since that is the camera brand i have. then after i get one, i read in another thread that a converter can mess up a lens. now i have 2 questions.

1. how do you know if your lens can use a converter with out messing it up?

2. how does it mess it up? that is the part that has me confused.

anyway, any advice is greatly appreciated.

thanks
i hope some one can help me out here. i was wanti... (show quote)


1) Google " canon teleconverter compatibility table".

2) Some lenses have elements that protrude INTO the camera body. Using the wrong teleconverter will have the glass from it crashing into glass of the lens, ruining both.

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Dec 11, 2013 11:45:35   #
conniep
 
thanks :) will give them a call!!!

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Dec 11, 2013 11:46:11   #
conniep
 
thank you very much

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Dec 11, 2013 11:49:51   #
Shellback Loc: North of Cheyenne Bottoms Wetlands - Kansas
 
The paperwork that came with the converter should explain what camera's and lenses it is compatible with. The Canon USA site has a lens section - scroll down to the converters and click on the one you purchased - go to the specification tab for lens compatibility...
Here is the link and the notes from each -
http://www.usa.canon.com/cusa/consumer/products/cameras/ef_lens_lineup
EF 1.4X III:
Note: This lens is only compatible with fixed focal length L-series lenses 135mm and over, as well as the EF 70-200/2.8L, EF 70-200/2.8L IS, EF 70-200/4L, and EF 100-400/4.5-5.6L.
EF 2X III:
Note: This lens is only compatible with fixed focal length L-series lenses 135mm and over, as well as the EF 70-200/2.8L, EF 70-200/2.8L IS, EF 70-200/4L, and EF 100-400/4.5-5.6L. Additionally, please see the lens and/or camera body manual for full compatibility information with the Extender EF 2X III.

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Dec 11, 2013 12:53:29   #
MT Shooter Loc: Montana
 
conniep wrote:
i hope some one can help me out here. i was wanting to get a better telephoto lens and right now cannot afford it. i was at bestbuy the other day and a geeksquad fellow suggested a 2x converter. but told me to be sure it was a canon converter since that is the camera brand i have. then after i get one, i read in another thread that a converter can mess up a lens. now i have 2 questions.

1. how do you know if your lens can use a converter with out messing it up?

2. how does it mess it up? that is the part that has me confused.

anyway, any advice is greatly appreciated.

thanks
i hope some one can help me out here. i was wanti... (show quote)


I would guess based on your post that all you have right now are "kit" lenses. In which case you have been seriously mis-informed (Pretty much the only kind of information you will get from a Best Buy store). Do NOT use a TC on the Canon kit lenses as you can destroy both the lens and the TC when they collide optical elements.
As has already been recommended, refer to Canons TC compatibility info to see what will and will not work. Some aftermarket TCs MAY work with your kit lenses, but be SURE before mounting them in case they also present an interference fit and may cause the same damage.

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Dec 11, 2013 18:16:50   #
conniep
 
i want to thank everyone for your input. i did call canon, and they said their converter will not work with the lenses. i told them what kind of converter i had and he asked if it clicked together well, and it does. so i should not have any damage to my lenses with it. also, he did say i would lose my autofocus with it. i don't see a problem with that, as long as i can manually focus it. what do you guys think?

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Dec 11, 2013 18:18:42   #
MT Shooter Loc: Montana
 
conniep wrote:
i want to thank everyone for your input. i did call canon, and they said their converter will not work with the lenses. i told them what kind of converter i had and he asked if it clicked together well, and it does. so i should not have any damage to my lenses with it. also, he did say i would lose my autofocus with it. i don't see a problem with that, as long as i can manually focus it. what do you guys think?


Since you still have not said what lens you are talking about, there is no way to pass on a definitive answer as the specific lens will determine whether or not there is any compatibility.

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Dec 11, 2013 18:19:08   #
conniep
 
i have the lense that came with the camera, then i bought an ef 50, and i already had a 70-300 mm lense that i had bought. i also got a macro tube (?) to help with macro shots. the guy at canon was really nice and helpful.

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Dec 11, 2013 18:21:09   #
conniep
 
and so were all of you!! LOL thank you so much...i am new to *serious* photography, and have so much to learn. i took some photojournalism classes and learned a lot. i had signed up for basic dslr photography, but it had been replaced. i am hoping to get into a basic class in Janurary

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Dec 11, 2013 21:12:39   #
conniep
 
ok, the lenses says
canon 58mm canon zoomef 70-3001:4-5.6 is usm
ultra sonic macro 1.5/4.9ft

i have no idea what all of that means...my prof tried to tell me, but he talks faster than i write.



thanks

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Dec 11, 2013 23:17:13   #
olcoach Loc: Oregon
 
I wish you luck but I have found the extenders to not be worth much. I have the Canon 1.4 and the 2X but they just don't work for me. I hope if you get one it works for you.

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Dec 11, 2013 23:58:32   #
amehta Loc: Boston
 
conniep wrote:
ok, the lenses says
canon 58mm canon zoomef 70-3001:4-5.6 is usm
ultra sonic macro 1.5/4.9ft


If you have the 70-300mm lens (http://www.usa.canon.com/cusa/consumer/products/cameras/ef_lens_lineup/ef_70_300mm_f_4_5_6_is_usm ), what are you shooting that you feel you need "a better telephoto lens". That's a pretty good one already.

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Dec 12, 2013 06:12:50   #
speters Loc: Grangeville/Idaho
 
conniep wrote:
i hope some one can help me out here. i was wanting to get a better telephoto lens and right now cannot afford it. i was at bestbuy the other day and a geeksquad fellow suggested a 2x converter. but told me to be sure it was a canon converter since that is the camera brand i have. then after i get one, i read in another thread that a converter can mess up a lens. now i have 2 questions.

1. how do you know if your lens can use a converter with out messing it up?

2. how does it mess it up? that is the part that has me confused.

anyway, any advice is greatly appreciated.

thanks
i hope some one can help me out here. i was wanti... (show quote)

Just check the specs of your specific lens and make sure, that it is compatible with a converter (not all lenses are). It is a good idea to stick with the same brand converter, but there are good third party converters available. A converter does not mess up a lens (unless it is a lens not made for the use of one), but you could see a little image degradation, especially with a 2x, less so with a 1.4 x. I use a 1.4x on my 70-200mm and 400mm, as well as some other lenses and the IQ is just fine!

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