Additional functionality with newest firmware update.
Phase One is introducing interesting new features by firmware update. Besides other new options they add an "Electronic Shutter" to the functionality of their IQ3 100 digita backs. This electronic shutter allows shutter speeds up to 1/4000 sec on all ALPA 12 bodies and A-Series without the need of a mechanical shutter.As it is a rolling shutter this application is recommended for tripod use. We will come up with some first hand experience after some own testing. Nevertheless this is an interesting new addition to the functionality of this specific digital back and quite a step forward.From their announcement:Electronic Shutter"An industry first for Medium Format, we’re introducing the most technically advanced, versatile and dynamic feature yet, complete Electronic Shutter integration. Now, with the IQ3 100MP on either the XF Camera System or an alternative technical camera, you can capture images without a single moving component. With the new rolling shutter technology of the IQ3 100MP, you have complete control directly from the digital back. The Electronic Shutter not only provides advantages for a number of capture scenarios but it extends the control and workflow possibilities for Live View, Black Reference integration and technical camera applications."For further information, see Phase One Product Page