Re: [APML] Light pollution effect on film photography?

["John C. Mirtle" <jmirtle@shaw.ca>]

> >As a newcomer to film astrophotography, I would value the opinion of the
> >experienced people on this list about how serious is the effect of light
> >pollution on film photography.

    For some reason, no-one has mentioned the most effective way of shooting
through light pollution. How about Tech Pan and Lumicon's Hydrogen Alpha
filter?? Another twist works well for prime focus, I doubt it will work for
anything faster than f4.5, but I have managed to shoot planetaries through a UHC
filter onto tech pan. 20 minutes showed little background fogging, but lots of
nebula from downtown Calgary. (over 800,000 well lit people)

John Mirtle
Calgary, Ab. Canada
http://members.shaw.ca/jmirtle



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