May 19, 2011, 20:00
If you're ever "stuck" without a grey card or expodisc to set your white balance in the field, you can use a takeaway coffee cup lid as a makeshift expodisc. Apparently it's not 100% perfect, but good enough, and a bonus is that it might just fit into your lens hood.
http://www.flickr.com/photos/steveblackdog/5182197780/
http://www.flickr.com/photos/steveblackdog/5182197780/
Quote:To use, I set the focus to infinity, place the cap over, then set the custom WB. I dont even need to hold it as it fits nicely inside my lens hood, but that is just a lucky coincidenceNice!