I-CUBE
carries a wide variety of camera
lenses. Due to the large number available, it is impractical
to list them all. Please contact us if you have a specific
lens requirement application question.
Lenses for Viewing Objects 2" or Smaller
Navitar offers the Zoom 6000 and 12X Zoom video microscope systems
which will outperform any video lenses for close-up, high
magnification applications. See details on the
High Mag Zoom Lenses page.
Lenses for Viewing Objects 2" or Larger
Navitar offers the Zoom 7000 macro lenses featuring the same
parfocal zoom capabilities offered by the Zoom 6000 and 12X Zoom
series while allowing close-up image capture without extension tubes
or close-up lenses.
Using Lenses with Megapixel Cameras
Older model lenses designed to be used with video cameras may
compromise image quality when used with cameras having higher than
480 vertical lines. Megapixel lenses are designed to yield
greater point to point accuracy and should be carefully considered
when choosing a lens for demanding imaging applications.
MANUFACTURERS
- Fujinon
- Navitar
- Rainbow
- Tamron
- Pentax
General
lens selector criteria
NOTE: these are basic guidelines
and are not appropriate for exact lens selection. For a
specific lens recommendation, e-mail I-CUBENeeded measurements:
Do not confuse working
distance with Camera-to-object distance. Working distance is
measured from the front of the lens to the object being viewed
If measuring the
width of your object, use the horizontal CCD specifications
-
CCD size (HxV):
-
1/3"
CCD = 4.8mm x 3.6mm
-
1/2"
CCD = 6.4mm x 4.8mm
-
2/3"
CCD = 8.8mm x 6.6mm
-
1"
CCD = 12.8mm x 9.6mm
-
1"
= 25.4mm
Formulas:
Example:
Camera-to-object distance =
12" = 304.8mm
Selected camera: 1/2"
CCD
Object size: 3" =
76.2mm
Preferred orientation:
horizontal
M = 76.2 / 6.4mm = 11.9
FL = 304.8 / (11.9+2+ (1 /
11.9)) = 304.8 / 13.98 = 21.8mm
Lens choice: 25mm
