Photo Plus Magazine: Flashgun Super Test 2020
N Photo Magazine: Flashgun Big Test 2020
Marc Alhadeff Photography 2019
Digital Camera Magazine: Flashgun Group Test 2019
> Download and save the zip file below for the MODUS 600RT & VIPER TTL
Note that the firmware installation and upgrade can only be done using a Windows PC or laptop
Apple IOS not compatible
> Select the correct language (EN, FR, DE or ES)
> Follow the detailed instructions which are included in the contents of the zip file below
> Any problems, contact info@hahnel.ie
*Note that the firmware updates are also applicable to the original MODUS 600RT Speedlight*
ViperTTL_Son_Trans_V22
Corrects occasional misfiring in high speed sync mode
Modus_600RT_Son_V22
Add slave LED on/off function to the Common Functions menu
