Bike-view Time Lapse
This image is one of approx. 200 sequentially-photographed still frames — shot approx. one frame / 0.25 sec. – from a slowly-moving bicycle. The goal was an attempt to create a “unique” type of time-lapse sequence. I attached the camera to a horizontally-”mounted” tripod — the tripod was bungee-corded to the rear bike rack. In the foreground, you can see part of the contraption, one of rear pannier bags and a rear light. The location is the beach bike trail in El Segundo, California, quite close to LAX airport.
If the lighting conditions are good, the Canon EOS DIGITAL REBEL XT can shoot fast enough to “effectively” image a dynamic time-lapse like this. Although the motion is still strobe-like jerky, the fidelity of the high-rez image — which is better than HD — gives the sequence an appeal of its own. For an “effect” like this to work “convincingly”, it is important that ones vehicle is on as smooth a terrain as possible. Vertical motions — i.e. bumps in the road — definitely subtract from the visual experience.
For those curious about the technicalities of this digital image, the EXIF info is presented below:
File: - IMG_5623_060116_150000.JPG
Make - Canon
Model - Canon EOS DIGITAL REBEL XT
Orientation - Top left
XResolution - 72
YResolution - 72
ResolutionUnit - Inch
DateTime - 2006:01:16 15:00:01
YCbCrPositioning - Co-Sited
ExifOffset - 196
ExposureTime - 1/320 seconds
FNumber - 16
ExposureProgram - Manual control
ISOSpeedRatings - 400
ExifVersion - 0221
DateTimeOriginal - 2006:01:16 15:00:01
DateTimeDigitized - 2006:01:16 15:00:01
ComponentsConfiguration - YCbCr
ShutterSpeedValue - 1/320 seconds
ApertureValue - F 16.00
ExposureBiasValue - 0.00
MeteringMode - Multi-segment
Flash - Not fired, compulsory flash mode
FocalLength - 18 mm
UserComment -
FlashPixVersion - 0100
ColorSpace - sRGB
ExifImageWidth - 2496
ExifImageHeight - 1664
InteroperabilityOffset - 9230
FocalPlaneXResolution - 2855.84
FocalPlaneYResolution - 2859.11
FocalPlaneResolutionUnit - Inch
CustomRendered - Normal process
ExposureMode - Manual
WhiteBalance - Auto
SceneCaptureType - Standard
Maker Note (Vendor): -
Macro mode - Normal
Self timer - Off
Quality - Normal
Flash mode - Not fired
Sequence mode - Continous
Focus mode - MF
Image size - Medium
Easy shooting mode - Manual
Digital zoom - None
Contrast - Normal
Saturation - Normal
Sharpness - Normal
ISO Value - 32767 (other)
Metering mode - Evaluative
Focus type - Auto
AF point selected -
Exposure mode - Manual
Focal length - 18 - 55 mm (1 mm)
Flash activity - Not fired
Flash details -
Focus mode 2 - 8
White Balance - Auto
Sequence number - 0
Flash bias - 0.00 EV
Subject Distance - 0
Image Type - Canon EOS DIGITAL REBEL XT
Firmware Version - Firmware 1.0.2
Owner Name - Khurram Hashmi P d
Camera Serial Number - 620509886