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Custom
4" Coma Correctors for the Dream Astrograph line and other
select customers. |
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The photo to the left shows ten custom 4" coma
correctors next to the new 4" Off-Axis
Guider. This combination allows guiding prior to the filters. |
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Spot diagrams for this corrector can be seen by clicking
below. |
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Dream is blackening the edges of each lens element
inside the new Custom 4" Coma Corrector for maxiumum contrast,
as well as using a Teflon gasket under the metal retaining ring. |
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The photo to the right shows the 4" Off-Axis-Guider
attached to the custom 4" coma corrector. |
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Click on the small image below to see the matrix spot
diagram, which shows chromatic performance of this corrector. |
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