Posts Made By: Larry Stange

The issue of our personal codes regarding female safety can be settled with two simple questions.

1. You see a small woman being beaten merciously in public by a man far larger than you. Will you step in and take the hits for her?.

2. You see a large woman beating a small woman merciously in public. Will you shield the small womans body with your own and take the hits?.

Without ellaboration....are there ANY no's?. I rest my case. -Larry

Before I start on the construction of a Ronchi screen for the Celestron CR150 tomorrow, does anyone know what the effect of its accuracy will be from normal "shimmering" of atmospheric turbulance?.

e.g., will heavy "flaring" of a star cause line distortion in it self, that will PREVENT measuring how much the objective is undercorrected or overcorrected?.

I am in the pits for a viewing location.

Received today in the mail, an info brochure on how to list my phone number with the DOJ(Dept of Justice)here in Calif.

It has been a LONG wait.....has it not?.

....Those guys and girls with mixed genetic makeup calling all the time is about over. :-)

You got me started on this while I defrag the other computer James...

'member shooting crawdads on a steep bank to see 'em fall backwards into the water with the claws raised just like a man?.

'member leaving the daisy cocking lever hanging open to speed up the shooting?.....you only did it once.

'an whacking snow covered bushes along the roadside with a heavy stick to see if you got a rabbit?.

stuffing a running hose into gopher holes to flush 'em out?.

getting a mess of frog legs with flashlight and spear?.

What happened to these hunting skills?. Now its all computer games.

Talked to a couple of inlaw's with degrees in I.T. and related fields....It seems when and if any of us open up computer generated e-mail, & click on "remove me" or similar......It generates a whole new list that is sold....as a person that opens spam e-mail. Now that is REALLY a rotten trick!.

From this day forward....I will delete unopened any mail that is unfamiliar. Europe is another big offender with spam generation into the U.S. *too.

*to,two,2,II,dos-your choice.

Cloudy, weak stars, could only go 30 deg. up from horizon, home-made screen, etc.

Is it normal to have such a small apparent image of the lines?. e.g., 1/8 hole diameter in film can, Using the eye 2" back from the hole in prime focus minus?. I think it would be but am hoping for a miracle.....

The CCD camera I tried(Connectix Color2) could not image the faint lines or the star in prime focus mode. Did not try the 675K or the VC.

Bad day at Black Rock even though what I saw looked like straight lines. Hard to tell in weak light I guess.

Did add the 3rd adjustment screw to the optical back but have not aligned anything. No laser.

This is a late model Celest.CR150 scope with adjustable cell.

Where will he strike next?.

These were taken with .010 fishing line during 80 deg weather mid-day against a far tree. The heat wave shimmering made it difficult to get anything really clear and of course semi-transparent monofilament does not help resolution.

What do you think?......I can not be sure if the objective is overcorrected, undercorrected, or a really good late model Celestron CR150-HD.

Andrew et.al., Finally got a bright star just before it went over roof zenith out of window around 8:30 PM.

The Ronchi screens (2 different) that I made worked fantastic!. One with a film can the other wrapped on phenolic and hot-glued inside an empty EP. Subsequent test showed it doesn't matter(as you said)whether it is hand held outside or inserted except for scope stability and ease of viewing.

This is the test results(explained)..... The heavy dark lines going from 6+ down to 1 are SOooo close to straight GOING FROM EATHER SIDE OF FOCUS.... that it is extremely difficult to distinguish between them as you pass thru focus. The average "teeny-tiney" slight variations due to heat waves along the edges prevent noticing any difference in change before and after focus point.

I have the "trace impression" that outside of focus, the dark lines MIGHT be ever so slightly slimmer in the center.

The point of all of this is..... 1 to 5 extremely thin diffraction lines exist between the heavy dark lines ON BOTH SIDES OF FOCUS. These diffraction lines increase their NUMBER as you approach critical focus and the heavy lines get fewer. See the drawing, I think I may have a 1/8 or better, overcorrection(?) objective from Celestron.

It is really that hard to compare inside and outsde of focus. :-) :-) -Now I need a professional Ronchi for sure! -Larry

I am going to post a short question on the builder forum about those diffraction lines.