![John Hilliard – 'Black Depths' – Stargazing at the 'Invisible': Photography and the Power of Obscured Light – A Research Partnership with Kielder Observatory. John Hilliard – 'Black Depths' – Stargazing at the 'Invisible': Photography and the Power of Obscured Light – A Research Partnership with Kielder Observatory.](https://invisiblestargazing.files.wordpress.com/2019/03/screen-shot-2018-10-23-at-17.51.29-1.png?w=1200)
John Hilliard – 'Black Depths' – Stargazing at the 'Invisible': Photography and the Power of Obscured Light – A Research Partnership with Kielder Observatory.
![John Hilliard | Study for Camera Recording Its Own Condition (7 Apertures, 10 Speeds, 2 Mirrors) (1971) | Available for Sale | Artsy John Hilliard | Study for Camera Recording Its Own Condition (7 Apertures, 10 Speeds, 2 Mirrors) (1971) | Available for Sale | Artsy](https://d7hftxdivxxvm.cloudfront.net/?height=800&quality=80&resize_to=fit&src=https%3A%2F%2Fd32dm0rphc51dk.cloudfront.net%2Fn7TgrGvpQxXR0LADU3njHA%2Fnormalized.jpg&width=710)
John Hilliard | Study for Camera Recording Its Own Condition (7 Apertures, 10 Speeds, 2 Mirrors) (1971) | Available for Sale | Artsy
![John Hilliard – 'Black Depths' – Stargazing at the 'Invisible': Photography and the Power of Obscured Light – A Research Partnership with Kielder Observatory. John Hilliard – 'Black Depths' – Stargazing at the 'Invisible': Photography and the Power of Obscured Light – A Research Partnership with Kielder Observatory.](https://invisiblestargazing.files.wordpress.com/2019/03/screen-shot-2018-10-23-at-17.51.29-e1552595199802.png?w=840)