200 ISO shot at 640 ISO

[kshapero]

Forgot to change the film speed on my ZI. Shot a roll of Fuji C-41 200 ISO but the camera was set at 640 ISO by accident. It will be developed with no special requests (as if they could anyway) from a Fuji Frontier at Walgreens.

What should I expect?

 

[cmedin]

Crappy shadow detail and grain. Might not bad as bad as you expect though, modern C41 films are surprisingly resilient.

 

[peterc]

It'll probably be kind of muddy. The shadows will be pretty blocked up, but you won't have to worry about blown highlights.

 

[jan normandale]

Expect to remember to set your ISO prior to loading your roll?