APOD: 2021 January 2 - 21st Century Wet Collodion Moon

Thank you my friend Maj William W. 'Bill' Price for posting the NASA Astronomy Picture of the Day (APOD) for Saturday, January 2, 2021 titled "21st Century Wet Collodion Moon."

Historical photographic techniques is an interesting highlight for 2021. Of course black and white images highlight the content. Many of us are more familiar with the tintype process which is actually a wet collodion process subtype.

I hope and pray that each of you will sleep well tonight with your family members and awake refreshed on the first Sunday 2021

Image: 21st Century Wet Collodion Moon - Image Credit & Copyright - Mike Smolinsky

APOD background
"Explanation: In the mid 19th century, one of the first photographic technologies used to record the lunar surface was the wet-plate collodion process, notably employed by British astronomer Warren De la Rue. To capture an image, a thick, transparent mixture was used to coat a glass plate, sensitized with silver nitrate, exposed at the telescope, and then developed to create a negative image on the plate. To maintain photographic sensitivity, the entire process, from coating to exposure to developing, had to be completed before the plate dried, in a span of about 10 to 15 minutes. This modern version of a wet-plate collodion image celebrates lunar photography's early days, reproducing the process using modern chemicals to coat a glass plate from a 21st century hardware store. Captured last November 28 with an 8x10 view camera and backyard telescope, it faithfully records large craters, bright rays, and dark, smooth mare of the waxing gibbous Moon. Subsequently digitized, the image on the plate was 8.5 centimeters in diameter and exposed while tracking for 2 minutes. The wet plate's effective photographic sensitivity was about ISO 1. In your smart phone, the camera sensor probably has a photographic sensitivity range of ISO 100 to 6400 (and needs to be kept dry ...).

Moon Song · Phoebe Bridgers
https://www.youtube.com/watch?v=DXqZ66XK3z8

FYI Maj Robert Thornton Lt Col Charlie Brown COL Mikel J. Burroughs PO1 William "Chip" Nagel Maj Bill Smith, Ph.D. Lt Col John (Jack) Christensen Sgt Vance Bonds MAJ Dale E. Wilson, Ph.D. TSgt David L. SPC Nancy GreenePO2 (Join to see) SSG Michael Noll SMSgt David A Asbury SMSgt Lawrence McCarter MSgt Paul Connors PO1 H Gene Lawrence SPC Michael Terrell SPC Michael Terrell SSG Samuel Kermon

Good "Saturday" Morning my good friend and astronomy enthusiast Maj William W. 'Bill' Price - thanks for sharing the APOD Titled: "21st Century Wet Collodion Moon" with us this morning. I hope you enjoy your weekend Bill!

Good morning Sir. Nice APOD of the collodion Moon. Have a great day.