Camera Shake Test Stand (02)
Test shots made on my Camera Shake Test Stand.
Camera : Nikon D3100 dSLR , set to full manual control (speed, aperture and focus)
Lens : Nikon DX, AF-S Nikkor 18-55mm 1:3.5-5.6G , set at 55mm
VR mode Off (VR = Vibration Reduction)
Seen here are the 3 pinholes at the bottom of the cardboard.
For the purists amongst us : pinhole diameter c. 0.7mm. and distance between the 2 outer pinholes c. 180mm.
For each speed many shots were made and then the averaging one chosen.
You cannot count on only 1 shot per speed as you indeed may have had luck ;-)
In general, if camera is only handheld, with no other support, always go 1/100 sec. or faster.
If not possible, try to find support (chair, table, tree, wall, etc.).
The exception are modern digital cameras which are equipped with a Vibration Reduction feature (see next image in this set) and thus allowing for lower shutter speeds.
Please also note that the images were made with focal length of the zoom lens set at 55mm.
If a longer focal length is used the distance between camera and target has to be longer to get the same frame filling. The longer the distance the larger the shake deviations.
See also :