Category Archives: general

Sony A7r vs. Leica M9 Dynamic Range Compared

The Sony A7r camera body vs. Leica M9 camera body sensor dynamic range comparison in these two photos illustrates the advantage Sony has in its latest 24MP CMOS full-frame camera sensor (same as used in the Nikon D600/610). Sony A7r with Leica 75mm f/2 lens Leica M9 with Leica 75mm f/2 lens (Use left &… Read More »

aptitude package manager – how to use tutorial

Debian / Ubuntu linux visual package manager, a step-up from apt / apt-get command line for installing your LAMP server. Navigating aptitude with hot keys ? – help screen with partial list of hot keys l – filter packages (lower case L), shows only packages / – search, places cursor (within context of all packages)… Read More »

Safari 6 Macbook Pro Retina Mountain Lion Problems

Stuttering, flashing, missing page parts, delayed typing/keyboard reaction, character corruption are Safari problems (Safari version 6) seen under Mountain Lion (OS X 10.8) on Macbook Pro Retina.  The current Safari 6 version 8536.25 (check in the menu bar by clicking Safari –> About Safari) seems to only have serious issues on Macbook Pro Retina, not on… Read More »

OS X Problems

The two best ways to avoid OS X Problems: backup before problems start and don’t fix what’s not broken. Avoiding OS X Problems – Backup Before Problems Start Before making any chages to your Mac, backup your current system by making a mirror image of your current system.  This places an exact copy of your… Read More »


Downloading and installing VisualHub is officially a web scavenger hunt now that it’s “abandonware” – “computer software that is no longer sold or supported, or whose copyright ownership may be unclear for various reasons” – Wikipedia Many are claiming that VisualHub is now open source, (freely downloadable programming code hosted at that can be… Read More »