What is to consider when using Tamron lenses on the Dynax 5D?
There is a malfunction of the AF on the Dynax 5D in combination with a Tamron lens.
Tamron lenses to cause the problem:
- Model-A061 AF28-300mm F/3.5-6.3 XR Di Aspherical (IF)
- Model-A09 SP AF28-75mm F/2.8 XR Di LD Aspherical (IF)
- Model-A05 SP AF17-35mmF/2.8-4 Di LD Aspherical (IF)
- Model-A08 SP AF200-500mmF/5-6.3 Di LD (IF)
Symptom:
AF of the camera body malfunctions (AF coupler runs idly) when the camera is turned off and on again while the access lamp is lit.
Supplementary information:
- This problem does not occur with the combination of the Dynax 5D
with any KM brand AF lens.
- This problem does not occur with the combination of the Dynax 7D
with the above-mentioned Tamron lenses.
- Tamron Japan has released the product information article on this issue via their homepage. (Please have a look at following Site:
http://www.tamron.jp/en/news/release/news0928_sweet.html )
The Cause of the problem between DYNAX 5D and above mentioned Tamron lenses:
- Tamron lens transmits incorrect signals (information) due to the problem on the lens ROM equipped with the Tamron lens.
How to escape the problem:
- Make sure that the access lamp is turned off when turning on the camera.
- If the AF malfunction occurs, turn off the camera, and turn on the camera after the access lamp is turned off.
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