I’m Back’s Kickstarter for the Roll APS-C has become incredibly popular. The idea of slipping a digital sensor into existing film cameras is proving to have legs, and as the crowdfunding campaign closes in on $1M raised, the company has proposed a new solution to one of the system’s glaring issues. PetaPixel has covered the I’m Back Roll at length , but in the week since that story was published, I’m Back has not only raised nearly $100,000 more, but now has a new proposed solution to the issue of how to tell the sensor to activate when its’ not directly coupled with an analog camera’s shutter. As noted previously, the original design required an external component to tell the sensor to turn on, otherwise the battery drain to keep the sensor on all the time would burn the system out far too fast to be useful. I’m Back would include a small wireless Bluetooth remote that communicates with the image sensor to create a controlled exposure window.…