An empirical test? Wudda concept!
That said, it looks like the plane of focus is a bit different in each
shot. The image on the right seems a bit less clear overall. This is
most obvious in the little white cap on the left side of each image.
This reminds me of story . . . chap who owns a local photo lab visits
Cuba regularly and has done so for years. He befriended a number of
older photographers who were active during the Revolution and serves
as their agent here in the U.S. But I digress . . .
Point being, he accidentally damaged a filter one day and to make sure
he didn't use it again he used a broad felt tip permanent maker to
make a big squiggle on the surface. On a whim, he later shot some pix
with it and was amazed when his employees complimented the 'look' of
those pix. He now uses it regularly for people pictures that he sells
through his gallery.
FWIW/ScottGee1
On 5/31/05, Chuck Norcutt <chucknorcutt@xxxxxxxxxxx> wrote:
> Puttin' my money where my mouth is:
> Here's a shot of a rhododendron blossom done with my A1.
> <http://home.comcast.net/~chucknorcutt/wsb/html/view.cgi-photo.html--SiteID-2246544.html>
> Here are 320x240 pixel crops from two shots taken of this same blossom.
> <http://home.comcast.net/~chucknorcutt/wsb/html/view.cgi-photo.html--SiteID-2246545.html>
>
> These are from full resolution 5MP JPEG's. No additional processing has
> been done beyond the default camera settings for sharpening, contrast,
> saturation, etc. One of the shots has a big "speck" stuck on the lens
> about 5-10mm off center. I didn't even make it black. The "speck"
> consists of a triangular piece of bright blue Scotch "Long Mask" masking
> tape approximately 2x3x3 mm. Which one has the "speck" stuck to the
> lens? There are only two images. You've got a 50/50 chance of getting
> it right.
>
> Chuck Norcutt
>
> Chuck Norcutt wrote:
> > Undoubtedly, but I'll bet you can't actually see the difference.
> >
> > Chuck Norcutt
> >
> > AG Schnozz wrote:
> >
> >>> The speck will have no affect on performance.
> >>
> >>
> >>
> >> However, the speck could cause increased flare and a localized
> >> loss of contrast.
>
>
> ==============================================
> List usage info: http://www.zuikoholic.com
> List nannies: olympusadmin@xxxxxxxxxx
> ==============================================
>
==============================================
List usage info: http://www.zuikoholic.com
List nannies: olympusadmin@xxxxxxxxxx
==============================================
|