Digital BW, The Print

I am finding a wave like pattern in some highlights of shots from my 
rebel xt.  They are noticable in areas of cloud and particularly of 
mist, and seem to be more obvious after the conversion to B&W.  It is 
hard to describe, but I have seen similar patterns in oily reflections 
when the light hits it just right or at times in translucent white 
curtain material.  Longitudial swirls of varying intensity.

I have never seen anything like it from a scanned negative and wonder 
if it is an artifact of the digital capture process.  Trying to remove 
it with one of the blur tools removes all of the underlying texture as 
well.  Could this be some sort of lens flare specific to a digital 
chip?  It is most obvious in a shot I have taken through mist on a 
bright day.

Any help appreciated.

Steve

Stephen Kobrin wrote:


> I am finding a wave like pattern in some highlights
> .... Longitudial swirls of varying intensity.

I know a lot about digital artifacts, but I don't understand the 
description you've written. Do you have an image that we can look at?

-- 
Jeff Medkeff
Eagle River, Alaska

Jeff,

I do, but cannot easily post it on a website at this point.  If you 
send an email to kobrins@... I will reply with the 
image attached.  Thanks, I am really groping in the dark trying to 
describe it.

Steve

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Jeff Medkeff 
<medkeff@g...> wrote:
> 
> 
> Stephen Kobrin wrote:
> 
> 
> > I am finding a wave like pattern in some highlights
> > .... Longitudial swirls of varying intensity.
> 
> I know a lot about digital artifacts, but I don't understand the 
> description you've written. Do you have an image that we can look 
at?

> 
> -- 
> Jeff Medkeff
> Eagle River, Alaska

Thanks Jeff,

I do, but it would be difficult to post on my website at this point.  
If you could send an email to kobrins@..., I will send it 
back as an attachement.  


It is difficult to describe and I feel like I am groping in the dark in 
trying to do so -- and mixing metaphors.

Steve
--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Jeff Medkeff 
<medkeff@g...> wrote:

> 
> 
> Stephen Kobrin wrote:
> 
> 
> > I am finding a wave like pattern in some highlights
> > .... Longitudial swirls of varying intensity.
> 
> I know a lot about digital artifacts, but I don't understand the 
> description you've written. Do you have an image that we can look at?
> 
> -- 
> Jeff Medkeff
> Eagle River, Alaska

> From: Stephen Kobrin
>
> I do, but it would be difficult to post on my website at this point.
> If you could send an email to kobrins@..., I will send it
> back as an attachement.

Send me a sample, too. I might be able to figure it out. A 100% resolution
crop from the affected area would be sufficient.

Did you shoot JPEG or raw? If raw, what did you use to convert?

--

Ciao,               Paul D. DeRocco
Paul                mailto:pderocco@...

Is it showing on the print or just on the screen?
 
Tom Baker


Stephen Kobrin <kobrins@...> wrote:
I am finding a wave like pattern in some highlights of shots from my 
rebel xt. They are noticable in areas of cloud and particularly of 
mist, and seem to be more obvious after the conversion to B&W. It is 
hard to describe, but I have seen similar patterns in oily reflections 
when the light hits it just right or at times in translucent white 
curtain material. Longitudial swirls of varying intensity.

I have never seen anything like it from a scanned negative and wonder 
if it is an artifact of the digital capture process. Trying to remove 
it with one of the blur tools removes all of the underlying texture as 
well. Could this be some sort of lens flare specific to a digital 
chip? It is most obvious in a shot I have taken through mist on a 
bright day.

Any help appreciated.

Steve






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BY PARTICIPATING IN AND/OR POSTING MESSAGES TO THE DIGITAL BW, THE PRINT YAHOO! GROUP YOU EXPRESSLY UNDERSTAND AND AGREE THAT THE “OWNER” AND “MODERATORS” OF DIGITAL BW, THE PRINT YAHOO GROUP SHALL NOT BE LIABLE TO YOU FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR EXEMPLARY DAMAGES, INCLUDING BUT NOT LIMITED TO, DAMAGES FOR LOSS OF PROFITS, GOODWILL, USE, DATA OR OTHER INTANGIBLE LOSSES (EVEN IF THE “OWNER” AND “MODERATORS” OF DIGITAL BW, THE PRINT YAHOO GROUP HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES), RESULTING FROM: (i) THE USE OR THE INABILITY TO USE THE DIGITAL BW, THE PRINT YAHOO GROUP; (ii) UNAUTHORIZED ACCESS TO OR ALTERATION OF YOUR TRANSMISSIONS OR DATA; (iii) STATEMENTS OR CONDUCT OF ANY THIRD PARTY ON THE DIGITAL BW, THE PRINT YAHOO GROUP; OR (iv) ANY OTHER MATTER RELATING TO THE DIGITAL BW, THE PRINT YAHOO GROUP.

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[Non-text portions of this message have been removed]

Tom,

It is actually more obvious in the print -- UT-2 carbon on HR.

Steve

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Tom Baker 
<tbaker1328@s...> wrote:
> Is it showing on the print or just on the screen?
>  
> Tom Baker
> 
> 
> Stephen Kobrin <kobrins@w...> wrote:
> I am finding a wave like pattern in some highlights of shots from 
my 
> rebel xt. They are noticable in areas of cloud and particularly of 
> mist, and seem to be more obvious after the conversion to B&W. It 
is 
> hard to describe, but I have seen similar patterns in oily 
reflections 
> when the light hits it just right or at times in translucent white 
> curtain material. Longitudial swirls of varying intensity.
> 
> I have never seen anything like it from a scanned negative and 
wonder 
> if it is an artifact of the digital capture process. Trying to 
remove 
> it with one of the blur tools removes all of the underlying texture 
as 
> well. Could this be some sort of lens flare specific to a digital 
> chip? It is most obvious in a shot I have taken through mist on a 
> bright day.
> 
> Any help appreciated.
> 
> Steve
> 
> 
> 
> 
> 
> 
> Please visit the Group Homepage to check the Files, and other 
resources as they are often being updated.
> 
> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint
> 
> If you wish to receive no emails or just a daily digest, or you 
wish to unsubscribe, please edit your Membership preferences by 
visiting this same page.
> 
> Please follow these basic guidelines:
> - As threads develop, trim off excess portions of earlier messages 
to keep them short.
> - Good manners are required at all time. No personal attacks or 
flames. Hostile, aggressive or argumentative users may be removed 
from the membership without notice.
> - Keep your posts and threads related to the group topic of digital 
B&W printing. Users who persistently make off-topic posts may be 
removed from the membership.
> - By posting on this forum you agree to abide by the group rules 
and guidelines, and to abide by the actions and decisions of the 
group Owner and Moderators. See "Group Topic, Rules and Guidelines" 
in the Files section:
> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/
> 
> BY PARTICIPATING IN AND/OR POSTING MESSAGES TO THE DIGITAL BW, THE 
PRINT YAHOO! GROUP YOU EXPRESSLY UNDERSTAND AND AGREE THAT 
THE "OWNER" AND "MODERATORS" OF DIGITAL BW, THE PRINT YAHOO GROUP 
SHALL NOT BE LIABLE TO YOU FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
SPECIAL, CONSEQUENTIAL OR EXEMPLARY DAMAGES, INCLUDING BUT NOT 
LIMITED TO, DAMAGES FOR LOSS OF PROFITS, GOODWILL, USE, DATA OR OTHER 
INTANGIBLE LOSSES (EVEN IF THE "OWNER" AND "MODERATORS" OF DIGITAL 
BW, THE PRINT YAHOO GROUP HAVE BEEN ADVISED OF THE POSSIBILITY OF 
SUCH DAMAGES), RESULTING FROM: (i) THE USE OR THE INABILITY TO USE 
THE DIGITAL BW, THE PRINT YAHOO GROUP; (ii) UNAUTHORIZED ACCESS TO OR 
ALTERATION OF YOUR TRANSMISSIONS OR DATA; (iii) STATEMENTS OR CONDUCT 
OF ANY THIRD PARTY ON THE DIGITAL BW, THE PRINT YAHOO GROUP; OR (iv) 
ANY OTHER MATTER RELATING TO THE DIGITAL BW, THE PRINT YAHOO GROUP.

> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 
> 
> 
> 
> 
> [Non-text portions of this message have been removed]