More infrared images. I swapped the red and blue channels to make the sky blue. Two of the pictures a from the arboretum at Two Rivers Park and the third facing south from the River Ridge Observatory on Wye Mountain.
7/5/2021 Infrared Images
7/4/2021 Infrared Photography
These are from the first infrared photography session I ever did. The camera is a full spectrum modified Canon T5i. I used a 720nm filter. I could not see through the viewfinder, not surprising since it is infrared, but the autofocus worked. After several test shots I settled on ISO 800 and 1/500 second exposure. Then guessed where I was aiming. I can see this being fun. In the not too distant future I will get filters for ultraviolet. From what I can tell, you can spend hundreds of dollars on a UV pass filter or $40 on one that lets some IR through too and an IR cut filter. I’ll try the latter first.
7/3/2021 Trifid Nebula
As noted in an earlier post, Saturday was for dark nebulae. This is the iconic Trifid Nebula that everyone has seen in TV and movies if nowhere else. It has no relationship to those walking sunflowers.It has the name due to the dark lane cutting it into three sections. The Trifid is also known as Messier 20 and the dark lanes are known as Barnard 85. Here we have the smorgasbord of deep sky object types, the red is emission nebula, the blue reflection nebula, the dark, well, dark nebula. There is also a star cluster here as this is a stellar nursery creating stars like the nearby Lagoon Nebula and winter’s Orion Nebula.
