Thanks Neil. However, my question referred to the 
type 37 oil mentioned by Claire, not the type DF. 
In contrast to type DF (which is optimized for 
fluorescence microscopy), type 37 (which is 
optimized for 37°C) used to have very high 
autofluorescence and I wondered whether that had been improved in the meantime.

At 10:35 25-09-2008, you wrote:
>Hi all,
>
>A quick update on the oil, I just tried out the 
>DF from Cargille, again it has some fluorescence 
>in the oil, its not too bad though but I will be 
>trying the Olympus brand next - keep tuned!
>
>Neil Kad
>
> > Date: Wed, 24 Sep 2008 19:06:51 +0200
> > From: [log in to unmask]
> > Subject: Re: Gold Standard immersion oil
> > To: [log in to unmask]
> >
> > What about autofluorscence? Last time I tested this oil (which is
> > quite a while ago) I found that it had very high autofluorescence. Of
> > course, this is much more critical for widefield than for confocal.
> >
> > Beat
> >
> >
> > At 18:32 24-09-2008, you wrote:
> > >Just doing some catching up on the listserv 
> so sorry for the late reply, but
> > >I would also recommend the 37oC oil from Cargille. It has RI 1.52 at 37oC.
> > >
> > >Claire
>
>
>----------
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