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Location: UFOUpDatesList.Com > 2004 > Feb > Feb 2

Re: Whittlesea Australia UFO Photograph - Maccabee

From: Bruce Maccabee <brumac.nul>
Date: Mon, 2 Feb 2004 12:16:49 -0500
Fwd Date: Mon, 02 Feb 2004 16:34:00 -0500
Subject: Re: Whittlesea Australia UFO Photograph - Maccabee

>From: Dan Bright <ufo.nul>
>To: ufoupdates.nul
>Date: Sun, 01 Feb 2004 18:36:09 -0000
>Subject: Re: Whittlesea Australia UFO Photograph

>>From: John Velez <johnvelez.aic.nul>
>>To: ufoupdates.nul
>>Date: Sun, 1 Feb 2004 11:28:00 -0500
>>Subject: Re: Whittlesea Australia UFO Photograph


>>first, we need to find out some 'knowns'... ie; lens settings,
>>aperture, whether a zoom was used, approximate distances to
>>objects in the photo, etc. etc. etc.

>>Can someone get the raw data from one of the principles,
>>preferably the civil engineer/cameraman himself. Once we get our
>>mitts on that info, getting a good 'guesstimate' on the size,
>>distance and approximate speed of the object is a piece of cake.

>For the benefit of those who don't have access to photoshop or
>something similar, the EXIF data provides the following:

>Exposure time: 1/250 seconds
>F-stop: 9.5
>Date/time: January 15 2004, 14:52:46
>Shutter Speed: 1/256 seconds
>Aperture Value: 6.5
>Metering Mode: Average
>Focal Length: 10mm
>Pixel X Dimension: 1280
>Pixel Y Dimension: 960

>Not everything, but it's a start.

Amusing to note that the shutter speed (1/256) is shorter than
the exposure time (1/250). Also, what is the "aperture value" of
6.5 mean; the f-stop is given as 9.5.Incidently, with focal
length of 10 mm, then the aperture diameter would be 10mm/9.5 or
a hair bigger than 1 mm.... quite a small aperture.

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