Thanks for the information, everyone. I appreciate the cooments by those that actually own and have used one. I was hoping that it would be as sharp as reported. I had forgotten about using a yellow\orange filter to when using a single cell. I will be sure to do that. I'll probably use it mostly with the 12" configuration. It has an Ilex NO. 4 Universal Shutter. I don't own any vintage shutters, all my other ones are modern Copal\Prontor shutters. I assume that 1/25th, the middle setting, would probably be the most accurate. I'll test the speeds and find out.

All in all it sounds like a good lens for 8x10 contact printing and using a lens shade will probably help it a lot outdoors along with the filters.

Thanks again.

-R