« on: October 03, 2012, 11:34:14 PM »
I shot an indoor wedding and reception with my 5D3 using a 70-300 f/4.5-5.6 and my walk around 24-105 f/4. I used 3200 ISO inside and it worked out just fine. I did have my 580EXII mounted and used on all of the reception shots. With your faster lens you may not need that but I would think about having a flash just in case. I did go to both the church and the reception hall at the time of the day of the wedding and attended the church rehearsal the night before and took a whole bunch of shots at different settings and ISOs to get what I thought was best camera settings including the various people walking down the isle. I decided to shot in Av priority only because I was more worried about getting the shot than trying to manually set the exposure. Shooting in RAW, I knew I could play with the exposure if needed. I found that with the 24-105 that 70mm was best and I was able to pick out one of the pews (I put a piece of black tape on the pew at the floor level to mark it) where the light and ISO gave a good exposure (I had my wife walk down numerous times after the rehearsal was done as well) to start shooting the person wlaking down the aisle And used a stained glass window as my location marker as the where to stand. My advice on the 5D3, use A1 Servo and the 8 "box" focus point (press and hold the far right button on the top back of the camera and press down on the M-Fn button on the top of the camera repeatedly until you get this pattern) for the walks down and back up the isle. Alos i shot in "silent" continuous mode throughout the evening. After the walk downs, I shifted to the center square button for all other pictures. With the f/2.8 lenses that you have you may not need as much ISO. I'd probably put the 70-200 on the 7D which will give you a longer range and the wider angled lens (which ever you choose-maybe the 24-70 Tamron) on the 5D3. For portrait pix, the 70-200 on the 7D should be OK I would think.
I'd definitely plan on using a separate card for each "section" of the day, i.e., pre-ceremony, ceremony, reception. I had 3 CF cards, 16, 16 & 8GBs and a 16GB SD card (the 5D3 had two slots one for a CF and one for an SD). The 16 SD saved my bacon on the ceremony shots because I ran out of space on my CF card as the couple was walking away from the alter and the 5D3 auto shifted to the SD card..whew!!! An extra camera battery is a must. You probably have that already for your 7D, you may just have to suck it up for the 5D3. Good luck. I discovered a new-found respect for wedding photogs after doing my first wedding!