Filter
Top Products
Film Plane Mark
The lens distance index is scaled by measuring the distance from the film position. Thus,
in case the focusing is done by actual measurement, measure from the film plane mark
and transfer this distance to the lens distance index.
www.4.butkus.org
è Traces of water bubbles cannot be entirely removed from glass used for high quality
lenses because of the manufacturing process. Lens bubbles will not at all affect the
sharpness of the picture.
Depth of field Scale
The depth-of-field scale indicates the range of subjects which will be in sharp focus on the film. This range will vary with the following
factors: The depth-of-field will be deeper the smaller the lens aperture, the further the distance of the subject, and/or the shorter the lens
focal length. The depth-of-field will be shallower the larger the lens aperture, the nearer the distance of the subject, and/or the longer the
lens focal length.
Depth-of-field 2.3 m 4.3 m F 8 50 mm Focused at 3 m
For example, if the lens is 50mm and the subject has been focused at a distance of 3m, with an F8 aperture, the depth-of-field would be
from approximately 2.3m to 4.3m as indicated on both sides of the distance index.
Depth-of field 1.9 m-7.6 m F 16 50 mm Focused at 3 m
Similarly, if the aperture is F16, the picture will be sharp from about l.9m to 7.6m. This range will vary with the F stop selected.
è FL series of the Canon lenses have a feature which lets you see the actual sharpness through the viewfinder by turning the manual
aperture ring.
Lens Mount (FL and R Series Lenses)
As the lens mount for the Canon PELLIX QL is the same as for Canon PELLiX, FT QL, FX, and FP, it is possible to use all FL series
lenses except the l9mm F3.5 lens. The l9mm F3.5 lens cannot be attached because the PELLIX QL uses stationary type panicle mirror.
Use FL l9mm F3.5R for exclusive use with the Canon PELLIX QL instead.
è It is possible to attach and use all the R series lenses for CANONFLEX use. However, as the automatic aperture mechanism differs,
www.butkus.org/chinon