Canon 300mm F4L EF USM Image Stabilizer Lens
(Canon EF 300mm F4L USM Image Stabilizer Lens)
Canon 300mm IS
EF Lens is compact L-series telephoto lens with an Image Stabilizer
, which compensates for camera shake with the equivalent effect of a shutter speed two stops faster. Two Image Stabilizer modes are provided in Canon 300mm
EF F4L USM lens:
Mode 1 for standard photography and the new Stabilizer Mode 2 for use when panning subjects in motion.
Mode 2 detects the panning direction automatically while using Canon 300mm lens.
The Canon 300mm F4L lens is a major lens from Canon is a well-liked choice among superior amateur photographers as well as professionals. Canon 300mm F4L IS lens is comparatively compact size and price tag. As a ‘white’ L class lens Canon 300mm lens presenting is built to last. The metal bodied tub of Canon 300mm F4L is of the ‘drainpipe’ type, creature almost steady in diameter during its length. The somewhat narrower collar just in front of the mount of Canon 300mm F4L
EF Lens let finger room next to the camera’s grip and on the opposite side carries the two switches for AF/MF and focus limiter that allows 3m to infinity and the full scope of 1.5m to infinity. Next up in the Canon 300mm lens is the tripod mount collar with a single position foot and a ribbed knob for fixing. Strangely, although the collar has a central mark, there are no markings on the lens to line them up with.
Next along the barrel of the Canon 300mm
EF lens, on the left side, are the IS (Image Stabilisation) controls consisting of two slide switches. The lower, larger one is the on/off and the smaller, upper one controls the two modes. The first is for static shots and the second is for panned shots. Across the centre of the barrel in front of the manual focus ring is a standard distance window marked in metres and feet on the surface of Canon 300mm lens.
The manual focus ring of Canon 300mm
EF USM lens is a good 50mm+ in size with a nice, rubberized ribbed surface that is easy to grip. The model I had had a slight forward and backward play in it, but this was not enough to be annoying. The AutoFocus Canon 300mm EF USM lens is silent in operation although, for an L lens, it did seem a little sluggish even on a 1 series camera! The manual ring does not rotate during AutoFocus and is nicely torque when over-riding or manual focusing. Forward of the focus ring of Canon 300mm F4L lens is a sleeved, built in lens hood that slides back and forth and is locked with a quarter anti-clockwise turn. Once locked, it stayed in position well. The weight of the Canon
300mm EF F4L, not excessive for the type, gives a feeling of being fairly bomb-proof and solidly built.
Optical Quality of Canon 300mm EF USM lens:
Distortion is well controlled in the Canon 300mm F4L lens, with a pincushion effect of only 0.254% recorded with the iratest module. Contrast and color rendition of Canon 300mm EF lens are both up to Canon’s normal standards with a slightly warm color and good contrast.
Out of focus highlights are nicely rendered and the resolution is maintained across the full width of the frame. The resolution is not stunning and this is an area where some of Canon’s older designs are starting to appear slightly dated in the digital age. The results of Canon EF 300mm, however, were very pleasant to the eye and the shortcoming will not be noticed on the majority of today’s cameras.
Features of Canon EF 300mm F4L USM Image Stabilizer Lens:
Focal length and maximum aperture: 300 mm 1:4
Lens construction: 15 elements in 11 groups
Diagonal angle of view: 8°15'
Focus adjustment: Rear focusing system with USM
Closest focusing distance: 1.5m / 4.9ft
Filter size: 77mm
Specifications [Canon EF 300mm F4L USM Image Stabilizer Lens
|Angle of view (horzntl, vertl, diagnl)
||6°50', 4°35', 8°15'
|Lens construction (elements/groups)
|No. of diaphragm blades
|Closest focusing distance (m)
|Maximum magnification (x)
|Filter diameter (mm)
|Max. diameter x length (mm)
||90 x 221
|Magnification - Extension Tube EF12 II
||0.30 - 0.04
|Magnification - Extension Tube EF25 II
||0.37 - 0.09
|G.F.Holder III (hood III)
|G.F.Holder IV (hood IV)
MTF Chart for Canon EF 300mm F4L USM Image Stabilizer Lens
Block Diagram of Canon 300mm
EF F4L USM Image Stabilizer Lens
Depth-of-Field Data for Canon 300mm F4L
EF USM Image Stabilizer Lens
Sample Pictures of Canon EF 300mm F4L USM Image Stabilizer Lens
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