>Date: Tue, 05 Jan 1999 16:45:16 +0000 >From: Tiago Lopes da Fonseca <[EMAIL PROTECTED]> >Subject: Lens Cleaning and MF 26 in cold weather [v04.n187/23] >Message: 23 > >First of all: Happy new year for everybody! > >Now, I have two questions I would like to ask: > >- - I am about to buy a second hand Nikkor AF 20mm f2.8 from >a friend of mine. It seems to be in excelent condition, but I just >found out that he normaly uses lens cleaning paper to clean the >rear lens element - without any cleaning fluid (or alchool)!! Is there >any chance the glass might be damaged? Isn't the paper a bit >to abrasive for the lens coating? Lens cleaning paper is fine. What I usually use is the silk lens cleaning cloths that are reuseable. I present some condensation on the lens by breathing on it and then simply wipe with the cloth. Coatings are actually pretty durable and it will take a lot of cleaning to damage them. > >I am not worried about the front element because he allways uses >a UV filter and never had to clean the lens glass itself. > >- - I bought a MF 26 back for my F90X 4 months ago and it seamed >to be working fine. Last week I did some shooting in cold weather >(about 0 degrees Celcius - snowing) and it kept on reseting - the date >went back to 1/1/92 and all my settings disapeared. This happened >each time it stood outside for some time. Is this normal behaviour or >should I that it to be serviced? Perfectly normal. The batteries got sluggish because of the cold weather and the camera behaved as if you had removed the batteries. Ed