Frame Line Cheat on Alexa

Arri recently released version 9 of the Alexa Firmware. Part of this update, for Alexa XT cameras, is a feature called Open Gate. Open Gate uses the full resolution of the sensor, including the space reserved for look around to generate a 3414×2198 resolution ArriRaw image meant to be up scaled to 4k. One of the issues with Open Gate, is that Arri’s Frame line generator web app. is not capable of generating frame lines for the new sensor mode. Included in the White Paper for Open Gate is a work around to generate frame lines. It’s nice of Arri to offer a work around, but the really cool thing about it is the other use of the work around. Continue reading


Infrared Test

After seeing what Arri put out on their Facebook page the other day, I wanted to try to achieve something similar.   For my test I used an Alexa Plus 4:3 with a Zeiss Master Prime at T1.3, and an EK87 Infrared filter.  The Camera was set to 3200iso, 5600° kelvin, 358° shutter. 


Alexa Monochrome Infrared

Leica Monochrome, Epic Monochrome, Alexa Monochrome?  There is a small experimental trend in top camera manufactures to offer a solution for black and white. On film, black and white has the ability to capture nuances of light and shadow that just can’t happen on color stock. On digital it can be the same, but the sensor processing and filtration is different. Instead of red green and blue dedicated pixels, all of the pixels are dedicated to luminance. Depending on the calibration of the pixels, this could open up exposure latitude as well as resolution.  There is little info on the Alexa Prototype, so I will dig out as much as I can. I happen to be a huge fan of black and white.

Blue Streak Filter Test

blue 1 inside There are a number of options to adding cool streaky flares to your shots. I have discussed  one of these before with a previous post called Poor Man’s Anamorphic.  A more effective way to achieve this look is with an actual blue streak filter.  Blue for that matter is just the popular option. Schneider, for example, makes a full range of streak colour options like orange, pink, green, clear…. The filter works by a series of blue lines across a glass filter. as a bright light source hits the line, it flares the light out sideways to cast a line of light across the image.  A vertical line will cast light along the horizon. Continue reading