Canon Rebel XTi/400D and Heinrichs-Weikamp eTTL problem
Article Summary:
A news item at our partner site Digideep states that underwater photographers who work with a Canon EOS Digital Rebel XTi/400D and the eTTL-Converter developed by Heinrichs-Weikamp should NOT yet update the firmware of their camera. Furthermore, the problem also affects Amphibic eTTL flash guns offered by Subtronic, a manufacturer who installs the converter as an OEM-version in their strobes. Be sure to see the Digideep article for details, if you have a Rebel XTi/400D.