Re: [ATM] Detecting Astig in Ronchi images

["Scott Ewart" <scott.e@quicksurfer.com>]

Dale,
    Looks like someone fell asleep at the 5 o'clock/11 o'clock axis for 
about 2 minutes, maybe without even rotating the tool.  You can even see the 
facet streaks.  Can't say how deep or how long it may take to get it out 
(more than 2 minutes).  Nasty TDE too.  Maybe short strokes?  The 'stig may 
go away on its own by the time you get the TDE out.

Scott Ewart


----- Original Message ----- 
From: "Dale Eason" <atmpob@yahoo.com>
To: "atm-atmlist.net" <atm@atmlist.net>; <atm_free@yahoogroups.com>
Sent: Friday, February 17, 2006 12:23 AM
Subject: [ATM] Detecting Astig in Ronchi images


| ronchi images.  Can any of you see signs of astig in
| these images?   They were taken every .05 inches
| starting about .2 inside ROC.
|
| http://home.comcast.net/~doeason/DDavis/ronchi_scan.htm
|
| If you can identify what it is that tells you.  Can
| you also estimate the major axis and/or the magnitude?
|
| I'm sorry they are not full height but that is the
| best the web cam can do on the computer controlled
| platform.  If that is not good enough then say so but
| I can't get better until Edmund gets the lens I need
| in stock in 2 weeks.
|
| Dale Eason
|
| 

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