Approximately 83% transmission
The lenses retain high visible-light transmittance while applying their targeted spectral response.
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CR Kennedy
Kenko Star Cluster Glasses
$299.00
Kenko Star Cluster Glasses
Reduce selected urban light. See a less orange night sky.
Spectral-control lenses, approximately 83% visible-light transmittance and ES extended-depth-of-field design support wide-field stargazing and meteor-shower viewing.
83%
approximate visible-light transmittance
33 g
approximate net weight
140 mm
temple length
Approximately 33 g
The lightweight frame reduces the physical burden during extended periods of sky scanning.
Multi-coated lenses
Kenko combines the spectral-control design with a multi-coating intended to support useful light transmission.
Official transmission curve
Reduce more yellow-orange light than blue light.
Kenko's graph marks an approximate 10% reduction at 450 nm and an approximate 25% reduction at 590 nm. The targeted response reduces selected artificial light, including LED and high-pressure sodium sources, helping the sky appear less orange.
Meteor-shower viewing
The ES lens design keeps a broader range of distances in focus, reducing the need for precise refocusing while you watch a wide area of sky.
Broad sky sweeps
Extended depth of field supports scanning across the sky with less continual focus adjustment.
Fit depends on your prescription frames.
Designed for
Over-glass use. The frame can sit over many prescription glasses.
Worth knowing
Not every frame shape will fit. Compatibility depends on the shape of your existing prescription glasses.
Specifications.
Optics
Lens design
ES lens with Extended Depth of Field Design
Visible-light transmittance
Approximately 83%
Lens coating
Multi-coated
Lens dimension
65 mm
Manufacturer lens classification
Single-vision lenses for vision correction
Frame
Temple length
140 mm
Frame material
TR-90
Dimensions (W × H × D)
160 × 50 × 175 mm
Physical and included
Net weight
Approximately 33 g
Verified included accessory
Semi-hard case × 1
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Kenko Star Cluster Glasses
Reduce selected urban light. See a less orange night sky.
Spectral-control lenses, approximately 83% visible-light transmittance and ES extended-depth-of-field design support wide-field stargazing and meteor-shower viewing.
83%
approximate visible-light transmittance
33 g
approximate net weight
140 mm
temple length
Approximately 83% transmission
The lenses retain high visible-light transmittance while applying their targeted spectral response.
Approximately 33 g
The lightweight frame reduces the physical burden during extended periods of sky scanning.
Multi-coated lenses
Kenko combines the spectral-control design with a multi-coating intended to support useful light transmission.
Official transmission curve
Reduce more yellow-orange light than blue light.
Kenko's graph marks an approximate 10% reduction at 450 nm and an approximate 25% reduction at 590 nm. The targeted response reduces selected artificial light, including LED and high-pressure sodium sources, helping the sky appear less orange.
Meteor-shower viewing
The ES lens design keeps a broader range of distances in focus, reducing the need for precise refocusing while you watch a wide area of sky.
Broad sky sweeps
Extended depth of field supports scanning across the sky with less continual focus adjustment.
Fit depends on your prescription frames.
Designed for
Over-glass use. The frame can sit over many prescription glasses.
Worth knowing
Not every frame shape will fit. Compatibility depends on the shape of your existing prescription glasses.
Specifications.
Optics
Lens design
ES lens with Extended Depth of Field Design
Visible-light transmittance
Approximately 83%
Lens coating
Multi-coated
Lens dimension
65 mm
Manufacturer lens classification
Single-vision lenses for vision correction
Frame
Temple length
140 mm
Frame material
TR-90
Dimensions (W × H × D)
160 × 50 × 175 mm
Physical and included
Net weight
Approximately 33 g
Verified included accessory
Semi-hard case × 1
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