marronyazul.es — marronyazul — marron y azul

HOW...?
TEST AND INFO.

How do I do what I do?

Jesus is the reason why I do what I do. He is the center of every life… Yes, even though we may be His enemies! So, His help is usually in the form of 'trial and error', paving the path towards beauty with our failures. You will find most interesting the "optical tests" that I do from time to time using the slanted edge method and proper software. Some of the tests have been published in this website for the first time ever (before I kept them secret). Remember you can get here some of the winning hardware in these tests (see LINKS).

A 'New Approach' for testing optical trains

This first eyepiece review was first published in Cloudynights forum (here). I did this microscope eyepiece review to get a good combo for my planetary telescope (eyepiece projection technique).

'Barlow shootout' through "slanted edge" testing method in high resolution enviroment... as compared with best 25mm eyepieces available for eyepiece projection technique

Second long review published on 30th July 2016 as a first in this website. I also sent it to other sites to see it published.

THE "CRAPPY" vs THE "BEST": Battle of the Barlows Test Shootout... through "slanted edge" testing method in high resolution enviroment

This 4th review was published on 26th Dec 2022 as a first in this website. I also sent it to other sites to see it published. I did it mainly to test the APO Zeiss against the APO Nikon. To "fill in the holes" and for fun I also added some other cheap glasses from asian market (the 3rd is yet unpublished).

TESTS

How to know eyepiece focal length from indoors?

First PDF document tells you how to do it. Excel document gives you the work done (just fill in the cells according to step-by-step instructions in Excel itself).

How to deal with high resolution videos?

How do I process my pictures and videos? In this document you will be able to see it. Not yet available, this could be a book in itself... time will tell. Stay tuned.

Theoretical

Explanation

Practical

Explanation

& FILL-IN