Well, lets say you measure the FL within 2mm, and the typical
manufacturing tolerances are 2%(?) your total error combines in quadrature
giving dmag/mag = SQRT( (2/848)^2 + .02^2 + .02^2 ) = .028 so your error
in mag = .028*353 ~ 10x ~ 343x to 363x ... so rounding to 2 significant
digits is the best you can do, so about 350x here!
Mike
On Sat, 28 Jan 2006, Jeff wrote:
>
> Well.. 300x would be a nice round figure, but
> it would probably end up being something like
> 353.33333333333333333333333333333x
>
> E.g. 848mm FL / 4.8mm nagler = 176.66666666666666x * 2X barlow =
> 353.333333333333333333x
>
Received on Sun Jan 29 11:52:59 2006