The piece of tape is absolutly gigantic compared to a dust spec. I made
it large just to make the point. As stated, it's a triangular piece
approx. 3x3x2 mm. Photos were shot at f/10 for depth of field. This
small lens only goes to f/11. Best optical performance is probably
about f/5.6.
Chuck Norcutt
John A. Lind wrote:
>>On 5/31/05, AG Schnozz <agschnozz@xxxxxxxxx> wrote:
>>
>>>>An empirical test? Wudda concept!
>>>
>>>Ok, that does it. I'll do the same thing, but I'm going to shoot
>>>a scenic into the sun.
>>>
>>>Gotta be some way to prove a point.
>>>
>>>AG
>
>
> Not certain how big the piece of tape was. I would predict it's more
> likely to show up when aperture is stopped down than when it's opened up
> wide. Reason? Some of the special effects I've used in the past with
> "masks" in a Cokin filter holder are sharper along their edges when stopped
> down. Might depend on where the "speck" is placed and how big it is.
>
> -- John Lind
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