The Mobius ActionCam is now well known and arguably the camera of choice in it's lower-cost niche market segment. The image quality is very good, but the three available lenses all have fisheye distortion to different degrees, like all wider angle lenses do in similar cameras. I've used several fisheye correction filters available with some video editors, and while they can do a pretty decent job in many cases, their "generic" correction algorithms typically do not exactly match the curvature distortion of the Mobius standard lenses... not surprising since, like most decent lenses these days, the Mobius lenses use aspherical elements in their optics.

Enter ProDrenalin, a commercial video correction program by ProDad, a German company. In addition to fisheye correction, the program can also correct perspective "keystone" parallax distortion which becomes more apparent after curved lines are straightened by the fisheye correction. It does this by giving the user the ability to manually tilt the image about the pitch, roll, and yaw axes as necessary to get the desired results. Additionally, the program has a video stabilization function that also can minimize some rolling shutter artifacts, such as tilting of vertical lines as the camera is panned past, and the deformation of circles, such as vehicle wheels, into ovals as they move past the camera. Finally, ProDrenalin can do other image improvements such as video noise reduction and modification of...Continue Reading

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Make sure you have your sound turned up for this one. I was doing pretty well until the sun got in the way!

The Big Drum Video

AXI in a modified GWS 400 plastic gearbox frame

Himax in a GWS 400 gearbox frame

AXI in a Formosa

TM 400 Outrunner Lower Stick Mount Mod

Tool For Removing Motor Sticks

TM 400 Wing Reinforcement

TM 400 Cowl Mod

AXI Bearing Replacement

eDVR 5in1 Camera Rotating Mirror

"Slip-on" Snow Skis

Prop Balancer & Motor Test Rig

Z-Hinges... the absolute BEST hinges for flat profile foamies

Pusher Conversion of a GWS E-Starter for Aerial Photography

The Packable YAK - a HL YAK 55 with a removeable wing

Stripping the JAZZ HDV178 hi-def camera for AV use in parkflyers

TM400 Landing Gear Reinforcement

Key Fob Camera Date Stamp Removal and Widescreen Reformatting

Tweaking Key Fob Camera Videos With Vdub Editor

Using AviSynth and VDub To Combine Video Clips