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Teleconverter: Camera Body's Or Lense's Brand?  
User currently offlineMarkusB From Austria, joined Aug 2004, 94 posts, RR: 0
Posted (9 years 1 month 2 weeks 3 days ago) and read 2447 times:
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Hi all,

When you have, say, a Canon D300/Rebel with a Sigma lens and you intend to get a teleconverter: Is it (generally speaking) advisable to buy a converter of the same brand as the camera body or do you match the converter brand with that of the lens?

Thanks for taking the time to reply,

Markus.

13 replies: All unread, jump to last
 
User currently offlineFergulmcc From Ireland, joined Oct 2004, 1916 posts, RR: 53
Reply 1, posted (9 years 1 month 2 weeks 2 days 23 hours ago) and read 2415 times:

Markus

Personaly, I would stick with a Canon converter, than go for the cheaper alternative. When I was getting my lenses I was advised to stick with the Canon as I was getting Canon L lenses. Fitting a converter will cause your lens to loose a stop or two, depending which one you get, 1.4 = -1 stop and x2 = -2 stops. However you may need to check whether the Canon converter will fit onto the Sigma lens. My Sigma 24-70 f2.8 DG EX won't fit onto my Canon 1.4 converter, not that I wanted to but I was just messing around the other day and found that it won't go. As for the other larger Sigma lenses you may have to get that checked out.

Take care

Fergul  sun 



Zambian Airways, Where the Eagles fly free!!
User currently offlineStaffan From , joined Dec 1969, posts, RR:
Reply 2, posted (9 years 1 month 2 weeks 2 days 22 hours ago) and read 2403 times:

I would get a converter that maches the lens i.e Sigma converter for Sigma lens and Canon converter for Canon lens.

Staffan


User currently offlineMarkusB From Austria, joined Aug 2004, 94 posts, RR: 0
Reply 3, posted (9 years 1 month 2 weeks 2 days 21 hours ago) and read 2397 times:
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Thanks guys.

2 replies, 2 differing opinions. - This is going to be interesting...

I realize that in the 1st place it's most probably a matter of which converter has the better technical specifications, but could one have (for example) a greater likelihood of causing the dreaded "error 99" or passing incorrect readings to the cam's display or other technical/electronic issues?

Looking forward to finding out which opinion wins.

Markus.


User currently offlineFergulmcc From Ireland, joined Oct 2004, 1916 posts, RR: 53
Reply 4, posted (9 years 1 month 2 weeks 2 days 14 hours ago) and read 2369 times:

Quoting Staffan (Reply 2):
I would get a converter that maches the lens i.e Sigma converter for Sigma lens

Staffan is probably right here, as I said in my first reply, you will have to check which converter fits your lens before buying. I have a feeling that the Canon converter won't fit the Sigma lens.

Take care


Fergul  sun 



Zambian Airways, Where the Eagles fly free!!
User currently offlineMarkusB From Austria, joined Aug 2004, 94 posts, RR: 0
Reply 5, posted (9 years 1 month 2 weeks 2 days 4 hours ago) and read 2345 times:
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I see. I had never thought that chances are that it could not fit simply because it can not be mounted.
Well thanks for your help, guys, I'll see a local store tomorrow to get one.
Markus.


User currently offlineChris78cpr From United Kingdom, joined Feb 2004, 2819 posts, RR: 51
Reply 6, posted (9 years 1 month 2 weeks 2 days 4 hours ago) and read 2342 times:

With convertors you can only use a prime lens with a focal length of 135mm or greater. Any lens with focal below this will not work as the element sits too far back and will hit the convertor.

For zooms it is possible to use a convertor with a focal length as short as 70mm at the wide end of a zoom. Lenses such as 70-200's will work but a 24-70 will not.

In terms of what to get. I have a sigma 120-300 and it works great with my canon 1.4xII. I would reccomend canon's.

However with some of the third party convertors you can get AF to work with lenses with apertures of F5.6 or more.

An example of this is the tamron pro 1.4x and the kenko 1.4x which both reportedly AF with the 100-400 on a 1.6 crop body.

This is specualtion however, i have only used the canon myself and i will stick with them as they seem to be the best.

Any more questions, feel free to email me.

Chris



5D2/7D/1D2(soon to be a 1Dx) 17-40L/24-105L/70-200F2.8L/100-400L/24F1.4LII/50F1.2L/85F1.2LII
User currently offlineOly720man From United Kingdom, joined May 2004, 6671 posts, RR: 11
Reply 7, posted (9 years 1 month 2 weeks 2 days 4 hours ago) and read 2341 times:

Beware Sigmas. You could lose AF and some camera functions. If I could afford it (at the moment, having recently got a 300D) I'd get the genuine article, but I've just ebayed a cheaper one (Jessops) to have a go with my 400mm (Tokina) and see how it goes.


wheat and dairy can screw up your brain
User currently offlineJan Mogren From Sweden, joined Dec 2000, 2043 posts, RR: 51
Reply 8, posted (9 years 1 month 2 weeks 2 days 4 hours ago) and read 2339 times:

The EF 80-200 2,8 L will not fit on a Canon converter.

/JM



AeroPresentation - Airline DVD's filmed in High Definition
User currently offlineChris78cpr From United Kingdom, joined Feb 2004, 2819 posts, RR: 51
Reply 9, posted (9 years 1 month 2 weeks 2 days 4 hours ago) and read 2330 times:

Quoting Jan Mogren (Reply 8):
The EF 80-200 2,8 L will not fit on a Canon converter.

/JM

Really? I have heard of several people on FM.com using it successfully with one. Maybe it is one from a tamron or sigma though.

Chris



5D2/7D/1D2(soon to be a 1Dx) 17-40L/24-105L/70-200F2.8L/100-400L/24F1.4LII/50F1.2L/85F1.2LII
User currently offlineJan Mogren From Sweden, joined Dec 2000, 2043 posts, RR: 51
Reply 10, posted (9 years 1 month 2 weeks 2 days 3 hours ago) and read 2323 times:

Yes, that old one has rear elements too far rear to fit.

/JM



AeroPresentation - Airline DVD's filmed in High Definition
User currently offlineChris78cpr From United Kingdom, joined Feb 2004, 2819 posts, RR: 51
Reply 11, posted (9 years 1 month 2 weeks 2 days 3 hours ago) and read 2312 times:

Ok, my bad! Didnt know about that one. Thanks for pointing it out.

Chris



5D2/7D/1D2(soon to be a 1Dx) 17-40L/24-105L/70-200F2.8L/100-400L/24F1.4LII/50F1.2L/85F1.2LII
User currently offlineWoody001 From United Kingdom, joined Feb 2004, 529 posts, RR: 22
Reply 12, posted (9 years 1 month 2 weeks 2 days ago) and read 2297 times:

The Canon converters (1.4x & 2x) will not work with the Sigma 70-200mm f2.8 lens either, they physically won't fit.

Ian.



If I could just get the afterburner working...
User currently offlineMarkusB From Austria, joined Aug 2004, 94 posts, RR: 0
Reply 13, posted (9 years 1 month 2 weeks 1 day 19 hours ago) and read 2276 times:
AIRLINERS.NET CREW
DATABASE EDITOR

Guys,

thanks to all for your opinions, that was some interesting reading. I'll surely bug the salesman some more tomorrow and I'll also ask if I can try both before making the decision.

Markus.


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