I am heading to the province tonight for some DSO hunting: diffused and planetary nebula! Hope it will be as productive as last December’s deep-sky hunt. It will be a long 8-hour trip.
The Philippine Messier Marathon Open is an annual star party conducted under the dark clear skies of Caliraya, Laguna, where astronomy-enthusiasts in the country gather to observe and meet fellow enthusiasts. This event hosted by the Astronomical League of the Philippines is by far the largest star party and astro-gathering in the Philippines.
The modification involves physically removing the “hot plate”, a kind of filter that blocks infrared light. Manufacturers install it in cameras in order to correct for the reddish hue inherent to CCD or CMOS sensors. Removing such filter makes the camera more sensitive to IR and as well as H-alpha wavelengths, which is particularly useful in deep-sky photography.