Question about Tamron Cameras
I use this 1.4X on a canon 70-200mm f/4 lens. It was working fine, and this just stopped allowing me to autofocus. this occured while on the lens. One moment everything was fine, then it stopped. I tried it on another camera, and another lens (also f/4) with the same problems. I cannot visually see anything wrong with the Tamron. This is the lesser priced black version (Tamron-F AF Tele-Converter). 1.4X C-AF1 MC4 Made in Japan
Thanks for any help.
Tele convertors on their own do not focus - that is achieved by the lens. Are the lens contacts clean and correctly aligned with those in the camera ?
Posted on May 15, 2017
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Posted on Jan 02, 2017
SOURCE: Pentax MZ-60
The camera does not operate when a lens with the following conditions attached:
1. When a lens, which does not have autofocus function is attached.
2. When an F or FA lens is attached with the aperture ring set other than the A position.
3. F or FA 85mm f/2.8 Soft lens and FA28mm f/2.8 Soft lens cannot be used because these lenses do not have the A position on the lens aperture ring.
Posted on Oct 11, 2008
This is a lens for Sony/Minolta cameras. It is not compatible with the Nikon D90. Hence a Teleconverter for Nikon will not work on this lens to mount it to a Nikon D90.
Posted on Jan 15, 2009
The SX1 has an amazing 20X optical zoom. The teleconverter will allow to get pictures if the camera zoom is not fully on 20X. It means that you can't get a full 40X zoom images, but a 30X maybe. I don't why canon has this problem.
Posted on Jul 20, 2009
You can order the Tamron 2x teleconverter here. Be aware that not all lenses are compatible with teleconverters, and you can actually damage some lenses by trying to use them with a teleconverter.
Posted on Jul 15, 2012
The adapter will work if it is for the Nikon cameras Be aware you loose two stops and it makes the lens twice as long, so you need lots of light, to shoot at F5.6 (full open) and 1/400 of a second. when zoomed in. Your lens does not have image stabilisation.
Posted on Jan 25, 2014
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