Olympus-OM
[Top] [All Lists]

Re: [OM] My first attempt at HDR

Subject: Re: [OM] My first attempt at HDR
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Thu, 01 Aug 2013 14:27:07 -0400
I thought the calculations were important as a first approximation for a 
place which I think we were told is not easy to get to.

Chuck Norcutt


On 8/1/2013 10:18 AM, Bob Whitmire wrote:
> You can also go out the night before and eyeball things. They won't be 
> exactly the same as on shoot-night, but they'll be close. Then, with gear 
> ready, you prepare to use your shoe leather to position yourself in exactly 
> the right spot.
>
> --Bob "No Math" Whitmire
> Registered Neanderthal
>
> On Aug 1, 2013, at 12:05 AM, Chuck Norcutt wrote:
>
>> If you use the Windows calculator in scientific mode you will not see
>> ArcTan listed as a function on the keys.  To compute ArcTan click the
>> "Inv" (inverse) setting  above the function keys and then click the
>> "tan" button.  The expression ((W/2)/D) computes the tangent of the half
>> angle between camera and width of the lighthouse.  Arctan converts the
>> tangent into its inverse which is the angle.  Multiplying it by 2
>> converts the half angle into the full angle.
>
-- 
_________________________________________________________________
Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
Archives: http://lists.thomasclausen.net/mailman/private/olympus/
Themed Olympus Photo Exhibition: http://www.tope.nl/

<Prev in Thread] Current Thread [Next in Thread>
Sponsored by Tako
Impressum | Datenschutz