Planetary imaging comparison: Webcams vs DSLRs vs Planetary Cams

August 27, 2015 // by ecuador

The not so young amateur astronomers like myself who were aware of how difficult and demanding planetary photography was in the “old days” (i.e. 20th century) are pretty amazed at what you can achieve nowadays with equipment as simple as a webcam. Granted, most of the “magic” lies in the software processing that stacks hundreds […]

Starguider 2″ Field Flattener (TSFlat2) on SkyWatcher Evostar 80ED

February 19, 2015 // by ecuador

The lowest cost field flattener / corrector that I could find for my SW 80ED refractor was the Starguider 2″ Field Flattener sold by Sky’s the Limit on They have a £124 buy it now price currently. According to the seller (who is well-trusted in the UK) this is the same as the TS […]

DIY: Reducing DSLR Vignetting of 1.25″ Filter On 2″ Focuser

February 10, 2015 // by ecuador

We know how even with APS-C sensor you need a 2″ focuser to avoid significant vignetting. However 2″ filters are significantly more expensive (which can translate to quite some money for some nice AP filters that were recommended to me), and not as many options available (even fewer are available as clip-on and usually even […]