Hi,

I have a Turner-Reich 7.5 inch lens in a Rapax shutter I've been using for several years for 4X5 and 5X7 format. The shutter has developed some problems recently especially with the slower speeds.

I have had this shutter almost completely apart a couple years ago to repair a problem with the iris but I didn't clean or lubricate it then. It worked fine after that up till recently.

I could send it to SK Grimes but I thought I'd give it a try myself, since I've had it apart and got it back together successfully before.

I have obtained the repair manual for the Rapax shutter. My question is about the lubricants to use. The manual mentions a machine oil and a grease but doesn't give any specific manufacturers or specs for the oil and grease. Does anyone know which lubricants to use and where they could be obtained?

Thanks!

Zack