Fan mail
I am on a mailing list devoted to old Canon SLR cameras. A while ago someone asked an off-topic question — how to use an old Gossen Lunasix light meter. I responded by publishing the instruction manual here.

Thanks to Google and the other search engines, there are hundreds of hits on my Lunasix page every month. Dozens of people have written to thank me — mostly from Canada, the USA, Australia or the UK. It warms my heart. From Venezuela, Leopoldo Diaz Rodriguez wrote:
Dear Sir,
last sunday I was in yahoo looking for a manual for my lunasix 3 and surprise I found your page…. and the manual, perfect you almost save my life…… and surprise too, you are architect,… well also I am architect. I live in Caracas, Venezuela. I studied here and in montreal, McGill University…. Peter, if you need something from Caracas, just say it. If you want info about architecture here, I will be glad to help you…. Thanks again for the Lunasix manual and congratulations for your beautiful daughter.
Leopoldo
Could I get in contact with Leopoldo please? I'll be in Caracas in a month.
Australian traveller.
Brooke: I have sent Leopoldo a message about your request. You may hear from him. Cheers.
Ando buscando las instrucciones para el correcto uso del Lunasix 3, cualquier dato que pueda aportarme se lo agradeceré.
Abelardo
Hi Abelardo
Thanks so much, Peter. I've recently bought a Gossen meter and have been thinking that I should have bought a digital one that is a bit more straightforward.
Having this manual means I may just be able to work out how to use it.
All the best.