The 2019 NSS Photo Salon is now available for purchase as a downloadable MP4 file. 27 minutes long. The 20 photographers with original music. Some of the best cave photos taken from around the world. MP4 format for PCs and Macs at 1080p (HD). The MP4 high resolution is excellent for large screen TVs and at lecture halls (verified) All proceeds go to the NSS. The MP4 works on both PCs and Macs.
The MP4 download is $11 at https://app.simplegoods.co/i/RIEQCSON and since you purchased it you can show it as many times as you would want.
The 2017, 2018 and 2019 NSS Photo Salon DVDs are $20 and sold through the NSS Bookstore. Please support the NSS. Please send questions, recommendations and comments to Ray Keeler (NSS 23245) at rckeeler@cox.net