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


For those that are interested I have put together several zip files of
images of Carl's mirror for each test run as mentioned in my previous post

Feel free to have a look

#1 http://lerch.no-ip.com/atm/normal.zip (897KB)
This is a set of images from my "Normal" Robo Foucault setup
using the cheap 8mm video camera.  I was pretty confident in this setup as
it gave stunning results on a bunch of different mirrors (mostly F/5 and
greater)  One recent mirror was an 11" F/5.8, where the test results
were identical to normal eyeball Couder mask Foucault testing, and also
confirmed by the Star test and Ronchi-Star test

(Were working on building an OTA for Carl's mirror for the purposes for
Star and Ronchi-Star testing, but I'm pretty sure I already know what the
results will be :)

#2 http://lerch.no-ip.com/atm/1_200.zip (292KB)
1/200sec exposure test using the Sony 5 megapixel camera's analog video
output.  Due to a slight aspect ratio difference between the CCD and normal
NTSC video there is slight Horizontal compression in the image (about 3
pixel's worth) .  Prior to running the tests I placed a Pin Stick mask in
front of the mirror and verified that Robo was correctly placing the zone
tick marks at the appropriate radiuses (which it was, btw)

Also note that in all these images, Robo was asked to place the 'shade of
gray' pixel intensity value between 30 and 60 out of a possible 255

#3 http://lerch.no-ip.com/atm/1_100.zip (292KB)
1/100 sec exposure run

#4 http://lerch.no-ip.com/atm/1_50.zip (298KB)
1/50 sec exposure run

#5 http://lerch.no-ip.com/atm/1_25.zip (322KB)
1/25 sec exposure run

#6 http://lerch.no-ip.com/atm/1_13.zip (365KB)
1/13 sec exposure run

#7 http://lerch.no-ip.com/atm/1_6.zip (424KB)
1/6 sec exposure run

I'm open for any questions or comments!!!

Take Care,
James Lerch
http://lerch.no-ip.com/atm (My telescope construction,testing, and coating site)

--- BBBS/NT v4.00 MP