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A-Mount Teleconverters Guide

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dCap View Drop Down
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Posts: 6154 		Post Options Post Options   Quote dCap Quote  Post ReplyReply Direct Link To This Post Posted: 26 June 2006 at 23:05
what a fabulous thread! I can't beleave I've not read it until today!
I can still remember how that music used to make me smile
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MEANSTREAK View Drop Down
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Posts: 366 		Post Options Post Options   Quote MEANSTREAK Quote  Post ReplyReply Direct Link To This Post Posted: 06 July 2006 at 05:48
Originally posted by eccl eccl wrote:


Of all the 1.4X generic TC that I have used (CPC, Vivitar, Tamron etc.) they all have 5 pin. I'm not aware of any 1.4X TC (generic) one that has 8 pins.

eccl


I just picked up a used Tamron 1.4 and it has 8 pins. I believe it is the generic one. It says 1.4X Mx-AF MC4 on the side.
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eccl View Drop Down
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Posts: 757 		Post Options Post Options   Quote eccl Quote  Post ReplyReply Direct Link To This Post Posted: 06 July 2006 at 19:13
I do not have my old Tamron 1.4X anymore therefore cannot confirm whether it is the same version.

I believe all the newer Tamron/Kenko/Tokina generic or DG 1.4X generic TC has 8 pins. Don't know whether it has chip inside or simply just passing through the data.

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MEANSTREAK View Drop Down
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Posts: 366 		Post Options Post Options   Quote MEANSTREAK Quote  Post ReplyReply Direct Link To This Post Posted: 31 August 2006 at 20:20
Originally posted by eccl eccl wrote:

I have both the Tamron SP 1.4X (white) and SP 2X (white)and only the 2X reports the correct F stop. 1.4X doesn't.

Can you check with your friend to confirm his Tamron 1.4X SP TC (white) reports the correct aperture.

Thanks,
eccl



I posted a question on this elsewhere. I have the same experiance. My 2X is a Vivatar. Only my 2X reports the correct aperture. When I install the 1.4X, the aperature reports no differnt than the lens by itself. I guess this means I have to compensate my exposure, but I'm not sure how much. Also my 2X does not have 8 pins so I assume I lose some functions on newer lenses
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MEANSTREAK View Drop Down
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Posts: 366 		Post Options Post Options   Quote MEANSTREAK Quote  Post ReplyReply Direct Link To This Post Posted: 31 August 2006 at 20:23
Originally posted by gheil gheil wrote:

Originally posted by PLLD69 PLLD69 wrote:

I have a 1.4EX (non DG) and may be forced into running it with a Tokina 80-200 f2.8ATX (not the Pro version, the one before that). Gheil mentioned using the 2x Sigma with a Tokina 80-200 does anyone have any information on a) compatibility and b) optical results if compatible. Many thanks.
my Tokina is the 80-200f2.8 ATX Pro version and the TC is the Sigma APO 2X EX. It does not adjust the reported aperture, though of course the camera is able to meter fine regardless. i am hoping this weekend to have some great clear weather to exercise this combination with and can take a look at the resulting exif information. Looks sharp and focusing, even indoors, is effective. i wonder what the rechipping fees would be for these TC's?


So if I understand correctly, when a convertor fails to report the correct aperature it does not affect metering or the exposure? It only affect the reported setting?
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eccl View Drop Down
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Posts: 757 		Post Options Post Options   Quote eccl Quote  Post ReplyReply Direct Link To This Post Posted: 01 September 2006 at 05:07
"So if I understand correctly, when a convertor fails to report the correct aperature it does not affect metering or the exposure? It only affect the reported setting? "

Metering or exposure is not affected because the camera measures the actual light pass through the lens. Only the report setting is not correct.
 



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marc74 View Drop Down
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Posts: 135 		Post Options Post Options   Quote marc74 Quote  Post ReplyReply Direct Link To This Post Posted: 02 October 2006 at 16:13
Hi,

I´m a new member from Germany.
First @ eccl: very, very great work you´ve done here!!
There is only one special question about the Kenko 1.5x shq TC. This Tc works with the beercan 70-210/4 as I read in the german d7d userforum(http://www.d7userforum.de/phpBB2/reviews/showproduct.php?product=38&sort=2&cat=6&page=1).
But I would like to know, if it also works with the maxxum 70-210/ 3.5-4.5, or does this not fit together?
The kenko 1.5x shq TC is pronounced as dedicated in the tc- database and you told us, that the 70-210/3.5-4.5 does only fit with generic tc´s.
I´m a little bit confused about that, because i would like to buy a maxxum 70-210/3.5-4.5 and extend it with the kenko 1.5x shq.

Thank´s for your replie

Marc
A77- SAL 16-50/2.8 - Tammy 70-200/2.8 DI - Tammy 60/2 Macro - Metz 48 AF-1 - TK Tokina 300pro 2X
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eccl View Drop Down
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Posts: 757 		Post Options Post Options   Quote eccl Quote  Post ReplyReply Direct Link To This Post Posted: 02 October 2006 at 18:49
Hi Marc,

Welcome to Dyxum!

I believe the Kenko 1.5X SHQ is a generic teleconverter therefore it should fit any lens including the 70-210/3.5-4.5

Only Kenko Pro 300/Pro 300 DG 1.4X and 2X are dedicated.

Hope this help.
eccl
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marc74 View Drop Down
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Posts: 135 		Post Options Post Options   Quote marc74 Quote  Post ReplyReply Direct Link To This Post Posted: 02 October 2006 at 20:02
Thank you very much!

Marc
A77- SAL 16-50/2.8 - Tammy 70-200/2.8 DI - Tammy 60/2 Macro - Metz 48 AF-1 - TK Tokina 300pro 2X
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csiems View Drop Down
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Posts: 474 		Post Options Post Options   Quote csiems Quote  Post ReplyReply Direct Link To This Post Posted: 25 November 2006 at 01:15
I'd also like to thank for the fine work with the tc's.
I've got a Tamron-F AF Tele-converter 1,4x M-AF MC4 - that should be a generic one and fit ALL lenses.
It is ok with my Minolta lenses - and on the beercan it shows the correct range and f-stop.
But it doesn't work at all with my Tamron lenses (90mm Macro - 200-500mmSP)
That seems strange to me.

Carsten
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alanr View Drop Down
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Posts: 6 		Post Options Post Options   Quote alanr Quote  Post ReplyReply Direct Link To This Post Posted: 15 December 2006 at 21:57
I'm sorry if this has been answered previously, can i buy a tele converter that will fit both a Minolta 500mm reflex and a Sigma 400mm?

Thanks in advance.
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eccl View Drop Down
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Posts: 757 		Post Options Post Options   Quote eccl Quote  Post ReplyReply Direct Link To This Post Posted: 20 December 2006 at 04:17
Originally posted by alanr alanr wrote:

I'm sorry if this has been answered previously, can i buy a tele converter that will fit both a Minolta 500mm reflex and a Sigma 400mm?

Thanks in advance.


Any generic 1.4X, 1.7X or 2X teleconverter will fit both the Minolta 500/8 and Sigma 400mm
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alanr View Drop Down
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Posts: 6 		Post Options Post Options   Quote alanr Quote  Post ReplyReply Direct Link To This Post Posted: 21 December 2006 at 18:10
Originally posted by eccl eccl wrote:

Originally posted by alanr alanr wrote:

I'm sorry if this has been answered previously, can i buy a tele converter that will fit both a Minolta 500mm reflex and a Sigma 400mm?

Thanks in advance.


Any generic 1.4X, 1.7X or 2X teleconverter will fit both the Minolta 500/8 and Sigma 400mm


Thanks eccl
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Dorset Mike View Drop Down
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Posts: 535 		Post Options Post Options   Quote Dorset Mike Quote  Post ReplyReply Direct Link To This Post Posted: 22 February 2007 at 16:34
Hi, Just to add to the wealth of information in this thread, I have the Kenko 1.4x pro300 DG.

I can confirm that it works ok on my 5D with the Tamron 55-200 f4-5.6, only minor problem is AF is a bit slow and sometimes hunts at 180-200mm which is where the max aperture is 5.6.

I have also used it with the Tokina 80-400 f4.5-5.6 again some hesitation when it gets to f5.6 i.e between 280 and 400mm.

For both lenses AF at f5 seems to be OK, on the Tamron the change from f4 to f4.5 takes place at 120, to f5 at 160 and 5.6 at 180, the Tokina to f5 at 150, to f5.6 at 280.
Hope this helps, cheers MIKE
Cheers MIKE,



5D, A350: 50/1.7; 28-75/2.8;80-200/2.8 APO Kit; 500/8; Tam 17-50/2.8; 18-280; 70-300/4-5.6: 90/2.8; MC7 2X; Tokina 11-16/2.8: 80-400/4-5.6; Kenko 1.4X:
Min A200 bridge
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