|Asa, 5x7 Wet Plate Collodion on Aluminum with Carl Meyer 12" f/4.5 lens|
If you expose correctly, you should start to see an image less than ten seconds from the moment you pour fresh developer. At ten seconds you should begin to stop developing and rinse your plate in water. It will continue to develop for a little as you rinse.
If you don't see an image before ten seconds you are under-exposing your plate and need more light. For these images I used two Norman LH4000 strobes at full power and a reflector. Approximately eight thousand watt-seconds. You can read more about the Norman strobes in an older post.
|Hatuey, 5x7 Wet Plate Collodion on Aluminum with Carl Meyer 12" f/4.5 lens|
|Miriam, 8x10 shot with Carl Meyer 12" f/4.5 lens|