Sunday, January 19, 2020
Lat January 19th, my son KC and friends Joaquin Fajardo and his friend James went to Tagaytay with motorcyles to visit Taal Volcano and see ho it is doing after its big eruption last Sunday, January 12th. So fat\r, it has calmed down a bit and only small smoke emission can be detected. I use my Canon EOS M6 with EF-M 15-45mm f/4.5-5.6 IS lens and EF 100-400mm f/4.5-5.6 IS L lens to image the volcano.
Friday, January 10, 2020
January 11, 2020 Penumbral Lunar Eclipse at maximum penumbral phase 90% 03:10 PST
Thursday, January 9, 2020
The sky this evening is clear so I use this opportunity to test my newly serviced Canon EF100-400mm f/4.5-5.6 L lens set at 400mm f/8 using Canon EOS M6 mirrorless camera and set at 1/2000sec exposure at ISO 200 to see if everything is OK. So far so good and ready for the upcoming January 11, 2020 Penumbral Lunar Eclipse.
Monday, January 6, 2020
On January 11, 2020, there will be a penumbral lunar eclipse that will be visible in the Philippines. Unfortunately, the umbral path of the Earth Shadow won't touch any of the Moon area thus at maximum penumbra eclipse at 03:10am PST, only slight shading (maybe up to 1/3 or 1/4 of the southern limb will be noticeable only thus making this eclipse more of a dull visual event and more of photographic opportunity to see the slight shading in the southern limb of the Moon. Out of the 3 penumbral lunar eclipse that are visible in the Philippines, this is still the best one with the November 30 with 83% penumbral magnitude coming in next and the June 6 the worst one with 57% penumbral magnitude. Below are the circumstances of the eclipse Moon enters penumbra : 01:07:44 am Maximum penumbra (90%) : 03:10:01am Moon exits penumbra : 05:12:24 am
Sunday, January 5, 2020
Most of today's refractor be it high end or low ends tends not to give a flat image on the entire field of view unless you incorporate a dedicated field flattener to correct the softness of an image near the edges. Last night, I was able to make a quick and dirty image comparison of the Borg 76ED, an older model 76mm f/6.5 ED refractor with a focal length of around 500mm on the Quarter Moon. I put the Moon at the center of the frame and use a Canon EOS M6 mirrorless camera mounted on the Borg 76ED refractor as well as one image that I intentionally position the Quarter Moon along the edge of the frame to show the image quality difference. The results are below: A.) Moon at center of the frame
The sky this afternoon is hazy and seeing condition is bad. I still proceeded despite the poor condition to break the ice for my 1st solar imaging session for 2020. AR2755 Sunspot Group is small and inconspicuous both in Ha and white light wavelength. There is also a faint large large prominence in the SW limb. Image is very bad and soft for today's session :(