Binocular Collimation Quick and Easy Method without Prism Adjustment
I was initially put off from correcting an optical fault in an old pair
of Porro prism binoculars because all I had seen or read online involved
prism adjustment...read more
How
to make a robust, lockable solar filter for your telescope from
repurposed materials and purchased AstroSolar film. This will allow you
to enter the amazing world of solar astronomy...read more
It was whilst I was making the solar filter for my telescope that I seriously started to think about how I was to find the object of study in the eyepiece....read more
Home-Made Locking Solar Filter
How
to make a robust, lockable solar filter for your telescope from
repurposed materials and purchased AstroSolar film. This will allow you
to enter the amazing world of solar astronomy...read more
How to make a solar finderscope from scrap
It was whilst I was making the solar filter for my telescope that I seriously started to think about how I was to find the object of study in the eyepiece....read more
World War 1940s Binoculars - Perfect for Astronomy & Birdwatching
Despite their rough and ready appearance, WWII Binocular optics were
actually manufactured to a very high standard. The companies who made
them saved on the casings and strappings but were required by the Armed
Forces to furnish precision....read more
Unlike
the more modern pair I collimated, the objective
lenses on these could not be easily rotated in their respective cells. I
was thus faced with the possibility that I would have to
resort to prism adjustment and this I was loathe to do! It was at this...read more
Collimating World War 2 Binoculars
Unlike
the more modern pair I collimated, the objective
lenses on these could not be easily rotated in their respective cells. I
was thus faced with the possibility that I would have to
resort to prism adjustment and this I was loathe to do! It was at this...read more
Table Top Binocular Collimation Part 1 Materials & Fabrication
Following
on from my previous collimation experiment, I decided that in the
Winter it would be much better to be indoors! However, this was quite a
challenge on many levels...read more
Table Top Binocular Collimation Part 2 Modifications
I observed that true
to the laws of physics, once the collimator lens was set at a distance
from the cross wire reticle equivalent to the lens’ focal length and the
light was turned on, the image of the wires were in focus in the
binocular eyepiece...BUT...read more
Table Top Binocular Collimation Part 3 The Experiment
Following
on from my previous collimation experiment, I decided that in the
Winter it would be much better to be indoors! However, this was quite a
challenge on many levels...read more
LED Telescope Tripod Lights from Scrap
There is nothing so sorry looking as a garland of Fairy lights with some
of the bulbs diminished or dead. You feel you can't throw them away as
some of the lamps are burning bravely... The lights here are
battery powered LEDs, which make them ideal for upcycling to tripod
lights, as they have both the required battery pack and switch....read more
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