Equipment Reviews
Dobsonian Refurbishment Project PDF Print E-mail


Meade Starfinder 16" F/4.5 Dobsonian Refurbishment

Before refurbishment...

Martin McKenna, Maghera, County LondonderryMartin McKenna, Maghera

After much thought on the refurbishment of my Dobsonian, I realised that I was wasting time considering different options instead of doing anything about it. The moon was moving out of the evening sky very briefly, leaving a very short dark window for observing so I needed to get this scope sorted out or I would never get observing with the 16”.

Red Light Pen PDF Print E-mail

Red Light PenWhat better way to record your observations than with an EAAS red light pen? A black medium point biro pen coupled with a red LED light is the perfect accompaniment for any observer. The pens are comfortable to use and the batteries are replaceable.

Performance Improvement For Achromatic Refractors PDF Print E-mail

Anyone who owns a conventional achromatic refractor will be aware of the blue halo surrounding any white or bright object at high powers. Most people will know that this is due to the inability of the two objective elements to bring the complete colour spectrum to focus at the same point (chromatic aberration).

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