Quote:
Originally Posted by N1
A while back, I dug through some old negatives, of (among others) eclipses and comet Hale-Bopp. It occurred to me that I was looking at a physical trace those events and objects had left. I think I understand why some would want to use film. In 3 years' time, a total eclipse of the Sun will occur right here, a mere kilometre from the centre line. among the many ways we'll attempt to record the event, I am considering a capture on film.
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Hi Mirko,
I've observed and photographed 15 total eclipses, the first five on film. Considerations photographing an eclipse on film are different to deep sky astrophotography because: -
1. Reciprocity failure is not really an issue in eclipse
photography as it is with deep sky photography
2. Prominences and chromosphere are very bright
during an eclipse so lack of red sensitivity is not
an issue as it is in deep sky astrophotography.
3. Pure digital capture provides much cleaner images
of an eclipse and modern high end digital sensors have
vastly bigger dynamic range than film does.
Film..............Dynamic Range
Slide.....................5ev
Colour Neg............7eV
Monochrome.........9eV
Modern sensors 13-15eV
The attached photo was captured with a single exposure, no compositing with my Pentax K5, a 15 year old APSc camera body. My full frame camera has an even bigger PDR.
So yes sure do some film photography as a side project but modern digital sensors outperform film in PDR by about 5-9eV(30-500 x greater PDR)