Re: [APML] E-200 Push Phil Jones

[Roland Roberts <roland@astrofoto.org>]

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>>>>> "kgk" == KGKIRKLEY  <KGKIRKLEY@aol.com> writes:

    kgk> I don't suggest pushing films when using Schmidt cameras.  As
    kgk> you say, with, in my case, 5-10 minute exposures there is no
    kgk> need to push process E-200. This is with the 8 inch f1.5
    kgk> Celestron-Schmidt.

This more-less fits with my experiences doing piggy back shots.  My
dark-sky location has a ZLM of 6.0--6.5 and shots high in the sky at
f/4 for 40 minutes produce a pleasant deep-gray backgound on the
slide.  Shots I took last year at the Summer Star Party (near
Pittsfield, MA) were 30 minutes at f/2.8 and had a similar background.
Those times and f-stops are in the same range as your 5-10 minutes at
f/1.5.

regards,

roland
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Roland B. Roberts, PhD                             RL Enterprises
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