Has anyone ever performed testing to objectively demonstrate how much more expos ure latitude negative film has vs. chrome film? If you read published data, it suggests on average 1-2 stops more. But yet, I still hear boast about 3-4 extra stops. Maybe its a specific type of color neg film that exceeds in this area? Unfortunately, film makers don't test films for this and rarely publish any "re al world" test data on this issue.