Excel 2007 has the capability to specify the base of a log axis scale, but
that's not enough of a reason to upgrade.

Create a custom series using a helper XY series:

http://peltiertech.com/Excel/Charts/ArbitraryAxis.html
http://tushar-mehta.com/excel/newsgr...ale/index.html

- Jon
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Jon Peltier, Microsoft Excel MVP
Tutorials and Custom Solutions
http://PeltierTech.com
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"CMD" wrote in message
...
Hi
Can anyone tell me if Excel has the ability to make graphs in a log base 2
scale? Thanks in advance.
CMD