24 May
2013
24 May
'13
2:14 p.m.
On 24 May 2013, at 11:09, Joe Bauman wrote:
Oh I thought the small marks were estimates. What's the difference between the symbols? Thanks, Joe
Sorry Joe but I don't know. He has a much more sophisticated set up than me so maybe he is changing filters during the run and the different markers indicate different filters. patrick