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Originally Posted by
Maleko
The ultimate camera for weddings has to be the 5D, with maybe an xxD as a backup.
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As Derek Reese said, it's the camera that the photographer can use to make the best images.
If you think it's the 5D, don't ever pick up a 1-series body. The manufacturing quality in those bodies is almost fanatical, the menu options for customization, and the sound of the mirror mechanism in motion is just wow. Plus, I believe the 1-series has better electronics on the output side of the sensor (Daniel Browning mentioned that the amplifiers are analog, not digital), which helps the higher ISOs. The 1Ds3 is quite comparable (and scores a bit higher) than the 5D2 on DxOmark, even with an older sensor and Digic processors.
Specific models aside and having rented bodies to cover backup/second camera needs, I (personally) think there's a significant value in having a comparable backup body, and I don't see a crop body as a safe backup for a full-frame model. There'd need to be one more lens kept in the bag to fully accommodate the shift to the backup body, and that makes for an expensive safety net.
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