The Retrofocally corrected dialyte.
Posted 21 January 2012 - 03:09 AM
Posted 21 January 2012 - 07:56 AM
At my post, look at the "attachment". Click on that, and the whole OSLO file comes up, as Robboski asked for. You have to click on the central square that yaks about OSLO, and it'll close, and come up with a data board, draw board, and lens board.
If you have downloaded OSLO (which I think you said you have) you can click on any of the icons in the upper right on the draw board; and plots, MTF, 2D, 3D etc can be viewed.
This whole file can be manipulated if you choose.
I'll post it here, too. If you can't find it, I could save a basic layout in 2D, and put data and plots of it if you want. (For a 4" F/9.6~)
Posted 21 January 2012 - 11:45 AM
Posted 21 January 2012 - 09:04 PM
Posted 22 January 2012 - 07:55 AM
The "crazy eyepiece" is not authentic. It was created using experiments in "real performance".
Posted 22 January 2012 - 09:00 AM
If the objective is going to be ground anyways, it might be beneficial to bend it as shown.....
Posted 22 January 2012 - 01:50 PM
Posted 22 January 2012 - 04:16 PM
Is this yellowish image due to fringe killer?
Posted 23 January 2012 - 01:55 AM
Posted 23 January 2012 - 07:52 AM
I am a novice to understanding optics, but I dont understand why your four lens corrector assembly couldnt not be a stand alone corrector for any achcromat? E.G. if you started with a 6" F8 Synta scope as an example, what would the spots look like before and after? or perhaps this is just a variant on the Petzval solution, and a cousin to the Chromacorr?
Posted 23 January 2012 - 08:19 AM
This thing isn't a Petzval, John. It looks just like your Hypo. There are no separated stand-alone flint elements.
Posted 23 January 2012 - 11:01 AM
Posted 23 January 2012 - 11:13 AM
Posted 23 January 2012 - 11:16 AM
Posted 25 January 2012 - 10:16 AM
But unfortunately it is very bad polished! It has very bad zones and is so thin for me to repolish it. It is unable to focus to form any usable image! The zones are so strong that the lens has double curved front convex surface! It serves as test lens for examining the corrector lenses to see colorcorrection. At least one benefit.
It is not BK7, it is plate glass. Dialyte configuration really works with surprisingly little color with this lens. So I went to the local glass workshop and purchased 162mm dia by 10mm thick plate glass to grind a new lens. I saw the plate glass refracting index properties are similar to BK7 crown.
Posted 25 January 2012 - 10:36 AM
Posted 25 January 2012 - 11:21 AM
This is the link to see ATM status here in Croatia. Very sad. I was born in totally wrong corner of the world for ATM.
Posted 25 January 2012 - 01:45 PM
Posted 25 January 2012 - 02:14 PM
Posted 25 January 2012 - 03:04 PM
Posted 26 January 2012 - 01:57 AM