Nikkor Z 600 mm f/6.3 S with Nikon Z7II


Scale = 1.538 arsec/pixel (Astronetry.net)

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f/6.3:


NGC 884 - 22 novembre 2025 - Nikon Z7 II - Exposure = 17 x 8 s - 1000 ISO

FHWM map (CCD Inspector)



FWHM stat - Full-frame


FWHM stat - Center (521 × 512 pixels)


HFD map:

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