The Sony A7s Review

A detailed review of the Sony A7s for video and film professionals. What kind of productions are this camera suitable for?

What is a Light Meter and do you need one for Video?

One of the most common questions cinematographers have is whether to invest in a light meter or not. This article gives you the straight dope.

20 Steps to Becoming a Master Compositor (Part One): The First Ten Steps

The twenty steps and skills required to becoming a master compositor.

Hearing vs Listening

“Okay, I’m listening.” “No, you’re not. Before I start, there’s a little chore you need to do.” “Sure, Grandma Moon.” I should have stayed in Digitown and never returned, he thought. “My cat’s stuck in the attic. Get her for me, will you?” “How did it get stuck?” “We’ll ask her when you bring her […]

The Difference between Sound and Audio

Bob hadn’t imagined in his wildest dreams that he’d sleep in Cathy’s bed, drink her mom’s iced tea and get change for his bus ride home. It was almost as if he got married. Analog Mom wasn’t amused. But she didn’t say anything. Together, they rode out to the outskirts of town, to Grandma Moon’s […]

Notes by Dr. Optoglass: Noise and Dithering

Topics Covered: What is Noise? Signal to Noise Ratio Dithering Color Banding I think television has betrayed the meaning of democratic speech, adding visual chaos to the confusion of voices. What role does silence have in all this noise? – Federico Fellini Noise is unwanted information in a signal. A fly in your soup is […]

Notes by Dr. Optoglass: Stereoscopy – Challenges in Reproducing Stereopsis in Cameras and Displays

Topics Covered: Interaxial Distance Hyper Stereo vs Macro Stereo Keystone Effect and Keystoning Stereoscopic Window In order for stereoscopic cinematography to be a creative medium it’s got to be intuitive. If it’s not in the gut, it’s not going to succeed as an art form. If you have to rely solely on tables and calculations, […]

Notes by Dr. Optoglass: Stereoscopy – Convergence and Fusion

Topics Covered: Convergence and Fusion The Singleness of Vision Taking aim for too long can ruin your eyes – Ivorian Proverb When we focus on infinity our eyes look straight on in a parallel fashion, as indicated by the red arrows. As we have already seen, optical tests on the Snellen chart are positioned at […]