PM me if you have one, thanks!
If you can't find it here, try filterfind.net. If you don't see it listed, e-mail and it might be available.
The best I found to do the same was 40.5 to 52, then a 52 - 58. Very cheap on Ebay
Pinhole >> http://www.flickr.com/photos/isisfor...7622458540973/
If you find one don't be surprised if it causes vignetting with the 58mm lens , 40.5 to 58mm is a hell of a step.