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If you go to www.proscitech.com.au (no connection) you'll find it all
explained.

Differences are such things as colour, flatness, precision and lack of
autofluorescence.  

You need to be doing very demanding work for it to make a difference,
but it's nice to know the expensive ones are there when you need them.

                                       Guy

Optical Imaging Techniques in Cell Biology
by Guy Cox    CRC Press / Taylor & Francis
     http://www.guycox.com/optical.htm
______________________________________________
Associate Professor Guy Cox, MA, DPhil(Oxon) 
Australian Centre for Microscopy & Microanalysis, 
Madsen Building F09, University of Sydney, NSW 2006 

Phone +61 2 9351 3176     Fax +61 2 9351 7682
             Mobile 0413 281 861
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      http://www.guycox.net
 


-----Original Message-----
From: Confocal Microscopy List [mailto:[log in to unmask]]
On Behalf Of Peter Werner
Sent: Sunday, 12 December 2010 6:18 PM
To: [log in to unmask]
Subject: Brands of plain glass slides

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I was wondering if anybody can explain what qualitative difference  
exist, if any, between different brands of plain glass slides. For  
example, over on the Ted Pella page (
http://www.tedpella.com/histo_html/slides.htm 
  ), for a 2-box pack of 144 slides, the price varies from about $10  
for the Pella Economy Slides, all the way up to $40 or $60+ for Gold  
Seal or Corning slides.

My question is, is there any advantage or optical difference with the  
more expensive slides? Corning advertises theirs as "water white"  
glass, which I imagine implies something about the transmittance or  
refractive index, but I'm not sure.