WAGON WHEEL EFFECT : WAGON WHEEL
Wagon Wheel Effect : New Dub Wheels : 3 Spoke Mag Wheels.
Wagon Wheel Effect
- The wagon-wheel effect (alternatively, or stagecoach-wheel effect, stroboscopic effect) is an optical illusion in which a spoked wheel appears to rotate differently from its true rotation.
Wagon wheels revisited
These wheels were probably crafted by the turn of the Twentieth Century They were rolled hard and put away wet; this seems to describe these old wagon wheels. Perhaps if they had been kept up, the old wheels might not have fallen apart.
I decided I could probably make them look older by two or three decades if I created a faded tin type look. This production probably requires explanation. This scene would probably be better captured earlier in the morning but than my shadow might have been in the shot so the sun would be higher. In any case, the shadow was objectionable and deep because of the day's harsh lighting. I knew right away this was a candidate for a second RAW layer to control the oblique shadows.
The original shot was taken as a normal exposure and convert to a .TIFF slice in Lightroom. A second layer was needed. The f:/stop was boosted 1 1/3 stop in Lightroom and saved as a second slice. Both were adjusted for white balance in Lightroom. My Nikon imparts a cool balance. I dropped both into Photoshop with the lighter image dropped as a second layer over the base exposure. Both layers should be fine tuned at that point using Brightness/Contrast or Levels. The light layer was used to create a new Alpha Channel. Simply Ctrl-clicking on the Channel icon selects just the darker elements. I always do a slight feather that suits the detail. At that point I leave the selection but delete the Alpha Channel. I return to the Layers view and copy the lighter layer to the clipboard, using the Alpha Channel selection. Then I shut off the lighter layer view and pasted the transparent view of the lighter layer atop the stack. The densest tones present the most correction to the base exposure. I often readjust the shadow levels to maximize correction of the defective shadow. Saturations may also need adjusting. I also often erase problem casts on the transparent layer. Don't worry, it is a transparency and usually editing can be blazingly fast and not particularly careful. Once an ideal, balanced image that has tonal defects corrected, a single layer .TIFF can be saved. Done. Note a single second layer is chump change and can be quick. I have gone to four layers to reconstruct nasty originals like my mine shaft with outside and inside tones controlled.
But in this case, I decided for extra-curricular butchery might go so I decolorized the shot, filtered it and tried to present it as a badly aged tin type. The finished two-layer original is in the Stream for comparison. I bet the Farm machinery would be nice in sepia and scratched up a bit.
I like this "light painting" effect - longer exposure, and "painted" the rim of the wagon wheel with a flashlight. I deliberately underexposed this one -1, as the shots lose their dark feel when you lightpaint (like the next shot.) Of course the light painting was sloppy - see the glow cast on the wall behind.
Taken at Scottsdale Farm, Caledon, Ontario, on Nov. 1, 2008 as part of Rob Kennedy's "Shot in the Dark" workshop.
motorcycle wheel bearing removal
hot wheels battery
primary and secondary color wheel
hot wheels race world
hard truck 18 wheels of steel free trial
mag wheels repairs
meals on wheels dc
blaster wheel spacers
big wheel tours