I recently purchased the Calumet Genesis 200 light for my first strobe light. I wasn't really sure how to get everything working but I found out I can use a hotshoe adapter with my Rebel's to trigger the light. So, I went to a photography store and the sales person recommended me this Sony Minolta hotshoe: http://www.alzodigital.com/images/equipment/sony_minolta_hot_shoe_pc_adapt_200w.jpg I brought it home, hooked it up to my Rebel XT and light and started taking some pics. Everything seemed to work fine for the first 2-3 pictures but then I got this huge black gradient on my pics. I freaked out b/c I read about how the surge can mess up the image sensor, however, the sales person said I didn't need to purchase the Wein product b/c it only protects against 6v+ and the light is only 5v so I was confused... I unhooked everything and took some photos and I started getting a black bar on the top and bottom of the pictures. This was not normal. I talked to Canon and they said the image sensor may be messed up. Great! Luckily, I still had the warranty on it so I sent it in for repair. Some phone calls happened. Then, I took my light and the adapter to the store and hooked it up to their Rebel XSi and took pictures. Everything worked fine?! I have no idea what happened with my camera. I have a Rebel XSi too, with a full warranty, but I'm afraid to try it b/c I need a camera for this weekend. I can't get in touch with Calumet Tech support and I really need some help. What do you all think? Thanks for reading. I know it's long!