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Re: [APML] Photographing the Moon (Was: question about mirror lockup...)
>>>>> "Robert" == Robert Martin <rmartin@sonoranfoothillseng.com> writes:
Robert> On 15 Oct 2002, at 10:41, Roland Roberts wrote:
>> I haven't tried enough shots yet to be sure, but I'm getting
>> the strong impression that I can ... just treat [the Moon] as a
>> "sunny f/16" target and bracket about one stop on either side.
Robert> I have found that Covington's results are the maximum
Robert> exposure for lunar and solar shots. I prefer one to two
Robert> stops shorter exposure.
Last night was completely clouded over, but I had time to develop my
Tech Pan shots from the previous night; 10 minutes HC-100 Dilution F
at 68°F. This should have given me an effective EI of about 50. The
1/125 sec shots look best by eye, I haven't scanned them yet or used a
loupe. The 1/60 sec might be okay, but they appear a little dark.
The 1/30 sec are definitely too dark.
I haven't compared that with Covington's table yet....
roland
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Roland B. Roberts, PhD RL Enterprises
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roland@astrofoto.org Forest Hills, NY 11375
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