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A marvel of optical precision
Folded Length 455 mm / 18 "
and the result is the X4 GND – the world’s sharpest and most color neutral GND
9mm sensor
Starscape - Light Pollution Size:72 A marvel of optical precisionThis filter has many names; Starscape, Intensifier, Red Intensifier, Ra54, Light Pollution filter, "didymium" filter (technical term) and so on. In today's digital photography world it is most commonly used by astrophotographers to reduce the orange yellow glow caused by city lights. The filter targets specific wavelengths of light emitted by common Sodium and Mercury vapor street lamps and blocks a portion of that orange yellow glow as it passes
US$ 392.50
US$ 515.00
US$ 392.50
US$ 392.50
