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Re: [OM] F280 - angle of illumination

Subject: Re: [OM] F280 - angle of illumination
From: "Hans van Veluwen" <hcvanveluwen@xxxxxxxxx>
Date: Sun, 13 May 2001 17:49:00 +0200
: John- forget the 24, but try the 28. The flash covers 74 degrees while the
: 28mm covers 75 degrees. Depending on the subject, it could be ok. You can
: use a T-32 with the 24mm.


The T32 and F280 have identical coverage angles: 74 degrees horizontal, 53
degrees vertical.

The 75 degrees you mention for the 28mm lens is correct, but this the *diagonal*
angle of view. Its horizontal a.o.v. is 64 degrees, its vertical a.o.v. is 45
degrees.

For the 24mm lens these data are 84 degrees diagonal, 74 degrees horizontal and
53 degrees vertical. As you can see this is identical to the coverage angles of
both the T32 and F280.



hnz



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