Telescopes

Author Archives: Zoltan Trenovszki

How to Collimate an RC – the Williamson Method

Many of you, Ritchey-Chretien owners would confirm that aligning an RC is not always the biggest fun. One of our customers. Peter Williamson provided a great and comparatively simple method to align an RC. He used it on an 8″ RC, but read on and you will see that he also added few notes for larger RCs… “Hi Lads, As you have all pointed out, collimating the cheaper RCs, with the focuser attached to the Primary mirror cell, ain`t easy.… Read more »

Daystar Solar Scout 60mm Double Stack Solar Telescope

Daystar Solar Scout 60mm Double Stack Solar Telescope A Review by John an Adviser at 365 Astronomy Recently 365 Astronomy started selling the new Daystar Solar Scout 60mm Double-Stack H-Alpha Solar Telescope, this is a short review after testing the four units that we had in stock.… Read more »

Optolong and ZWO Filters Transmission Report

I’ve come up with this test report of Optolong and ZWO filters not only because we are the main Optolong importers and ZWO distributor in the UK, but because I myself also wanted to see what we sell and whether we should expect any problems, which is of course very important if one wanted happy customers… It was also a response to an article I read on the Cloudy Nights forum: https://www.cloudynights.com/topic/602155-testing-optolong-and-baader-narrow-band-ha-sii-filter/ As you will see this is not a quantitative report, but it will show the tendency and that Optolong and ZWO had good intentions and made positive improvements and that it is safe to buy their filters that were manufactured comparatively recently (i.e.… Read more »

A Comparative Review of TeleVue Nagler, Delite and Delos short Focal-Length Eyepieces

Review by Steve Miles, in association with ‘365Astronomy’ 18/01/2019 Preamble Having owned and used most of the popular amateur telescope types, in varying f-ratios and apertures, I have ended up following a now well-trodden path back to using refractors (though not to the exclusion of the others, all of which of course have their uses).… Read more »