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Peter Zetner | all galleries >> Astrophotography >> Solar Photos (2014+) >> Spectroheliograph > pic_2393.jpg
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03-JUN-2014

pic_2393.jpg

Canon EOS 5D Mark II
1/125s f/8.0 at 50.0mm iso100 full exif

other sizes: small medium original auto
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Peter Zetner23-Aug-2014 18:08
Astro-Rubinar 1000mmfl f10 catadioptric telescope.
Pentax Takumar 200mmfl f5.6 + Televue Powermate 2.5x collimator (~ 500mmfl) + 254mmfl EO achromat field lens.
Schneider Tele-Xenar 135mmfl + Komura 2x tele-extender camera lens.
25 um slit
2400 /mm holographic grating (25mm x 50mm)
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