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• Matched to your camera’s response for equal red, green and blue

• G2V calibrated for “true color”

• Correct OIII emission “teal” color for planetary nebula

• Parfocal – even the narrowbands – and do not require refocusing

• Superior blue transmission for highest signal and guide star selection

• Same guide star exposure for red, green and blue

• Equal color exposures needing only one dark exposure time

• Research quality construction (e.g. ¼ wave) at amateur prices