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echo: atm
to: ATM
from: jlerch1{at}tampabay.rr.com
date: 2003-07-21 11:44:18
subject: ATM Re: [atm_free] Slits, Pinholes, Points, & CCD`s

From: "James Lerch" 
To: 
Cc: "ATM List" 
Reply-To: "James Lerch" 


----- Original Message -----
From: "Vladimir Galogaza" 

> James,
>
> >I've "Wasted a Whole Day" ..............
>
> If you have wasted a whole day on something, normal human being
> needs a whole week to comprehend what you have done in that day.
> ( In this case cca 500KB of very interesting stuff for study. )
> Thanks
> Vladimir.

No, Thank you for the inspiration!  Along those lines here's another 600KB
of stuff to think about..

For reference, I should note all the images in this directory:
http://lerch.no-ip.com/atm/SPPCCD were made from two different mirrors.

#1 The file's with the word "Paul" in them are an 8" F/4.7
that I need to
aluminize (Oh yea, plus the Inside/Outside.jpg images are from Paul's mirror as well)

#2 All other files are from my 5" F/5 OBLATE 'should have been' Schwartzschild
secondary with a b = +2.3 (and the center 40% is mostly spherical and
probably is a lumpy as it looks)

With that said here's something silly I tried.  Paul's mirror, imaged
inside/outside roc by 0.61" (Its silly because my star test sim shows
you can't tell a 0.5 Strehl from a 1 Strehl parabolic mirror in this setup,
but I tried anyways..)

http://lerch.no-ip.com/atm/SPPCCD/Paul_in_061.jpg (13KB)
http://lerch.no-ip.com/atm/SPPCCD/Paul_out_061.jpg (8KB)

Another silly Idea I explored was on my 5" F/5, where after finding a
Null http://lerch.no-ip.com/atm/SPPCCD/50%ZONE.jpg (44KB)

I slid the CCD out from behind the knife, and Imaged from that point towards the
mirror and past ROC in 0.050" increments and made the following
animation: http://lerch.no-ip.com/atm/SPPCCD/Thru_ROC.avi (380KB)

(Still files are also found in the directory labeled No-Knife-xxx where xxx
is the amount of longitudinal travel towards the mirror.  BTW, each image
is a stack of 100 stills, since the raws were so dim and grainy)

Anyways, food for thought, hope its interesting ;)

James

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