Neat pictures I've taken

jinx · 08-22-2010, 08:56 PM

9:01

lumberjim · 08-22-2010, 09:42 PM

it grew back!

phenomenal shots

dmg1969 · 08-30-2010, 08:38 AM

Quote:

Originally Posted by jinx

9:01

That is fantastic jinx! Do you use the same setting each time or experiment based on the amount of light due to moon phase?

squirell nutkin · 08-30-2010, 12:34 PM

Quote:

Originally Posted by dmg1969

That is fantastic jinx! Do you use the same setting each time or experiment based on the amount of light due to moon phase?

The moon's reflectivity is constant. IIRC it reflects about 9% of the light falling on it. Your settings shouldn't change unless you are compensating for haze.

The "Rule of f:16" from the days of film states that proper exposure for a subject in full sun (between the hours of 10am and 4pm, May-Sept) is f:16 with a shutter speed of 1/ISO.

So, on a typical sunny summer day (excluding the beach) with ISO 400 film proper exposure would be 1/400 @ f:16

The average reflectance of earth is 18%. So the extrapolate a proper lunar exposure (since the days are always sunny on the moon) would be one stop more exposure since the moon reflects one stop less light than earth.

So, proper lunar exposure should be 1/ISO @ f:11 regardless of the moon's phase.

Typically, people assume that because it is night they need to give the moon lots of exposure. They don't, the moon is very bright.

08-22-2010, 08:56 PM	#1
jinx Come on, cat. Join Date: Nov 2003 Location: general vicinity of Philadelphia area Posts: 7,013	9:01 Attached Images __________________ Crying won't help you, praying won't do you no good.

08-22-2010, 09:42 PM	#2
lumberjim I can hear my ears Join Date: Oct 2003 Posts: 25,571	it grew back! phenomenal shots __________________ This body holding me reminds me of my own mortality Embrace this moment, remember We are eternal, all this pain is an illusion ~MJKeenan

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