Archived posting to the Leica Users Group, 2001/05/18
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]This tape thread started me thinking about the Leica red dot. I think I'll start a new trend and add some red dots to some of my older cameras so that people will be impressed. I have an old Pax M2 and a Ricoh with a rapid winder on the bottom. I think you can buy the 1/2 inch red dots at Staples in their office supply department. Can you imagine the excitement that could be cause by three cameras around my neck that might be construed to be Leicas. The devil made me write this. (The pre-Vatican devil that is) - -----Original Message----- From: owner-leica-users@mejac.palo-alto.ca.us [mailto:owner-leica-users@mejac.palo-alto.ca.us]On Behalf Of Douglas Herr Sent: Thursday, May 17, 2001 1:30 PM To: leica-users@mejac.palo-alto.ca.us Subject: OT: Duct tape (was: RE: [Leica] Black tape types (flavours not considered)) - ------Original Message------ From: Henning Wulff <henningw@archiphoto.com> To: leica-users@mejac.palo-alto.ca.us Sent: May 17, 2001 5:08:27 PM GMT Subject: [Leica] Black tape types (flavours not considered) >>> Duct tape is for sealing air handling _ducts_. No more, no less. There are various qualities, surface treatments and adhesives, depending on the type of ducts, joint stability, temperature range, insulated/non-insulated or whatever. In my architectural practice I've inspected many duct installations and seen many types of tape. They are specified by manufacturer and type/number. Most are unsuitable for anything photographic, and are usually gray, silver or white. Usually 2", sometimes wider or narrower. <<< Duct tape is also unsuitable for sealing ducts. The failure rate is 100% in just a few years. Failed ducts in residential construction is a significant source of energy waste, and with blackouts likely here in California this summer unless energy consumption is reduced, using duct tape to seal ducts is a NO-NO!! For those who question my credentials or knowledge in this area, I work for the state's Energy Commission in the residential efficiency standards office, and my 9-5 work is writing efficiency standards compliance software. I don't have the source of the 100% failure rate claim at my fingertips but I believe it's based on Mark Modera's work at Lawrence Berkeley Laboratory. Let's keep this thread short. Doug Herr Birdman of Sacramento http://www.wildlightphoto.com