Luminous Landscape Forum

Equipment & Techniques => Beginner's Questions => Topic started by: photomancottrell on September 02, 2010, 11:16:35 pm

Title: Help with image problems...
Post by: photomancottrell on September 02, 2010, 11:16:35 pm

please help me figure out what is wrong.  see photo in the the link "best of the day" and look at the grey that is turning purple.  i shot jpeg+RAW and this is in both.

it looks like a chromatic aberration but it has never happend with this equipment before...1ds mkii, 70-200L at f12 or f16 iso 100.

thanks for any help you can give me!!

http://jpgmag.com/photos/2638421 (http://jpgmag.com/photos/2638421)

Title: Re: Help with image problems...
Post by: photomancottrell on September 03, 2010, 10:26:38 am

no help? :o

pretty please?

Title: Re: Help with image problems...
Post by: Vuurtoren on September 03, 2010, 12:40:41 pm

Hi, if this is B/W where is the purple?

Chris

Title: Re: Help with image problems...
Post by: Ken Bennett on September 03, 2010, 12:54:18 pm

I'm just seeing black and white. Sorry.

Title: Re: Help with image problems...
Post by: photomancottrell on September 03, 2010, 05:14:15 pm

to the left of the subject in the first quarter of the frame....maybe it's my monitor.  I have a print coming in of the image sometime next week...we'll see if it shows up on there.  The thing is that it's not showing up on other images on that screen.

Title: Re: Help with image problems...
Post by: EduPerez on September 05, 2010, 03:54:01 pm

I could not see any purple, but after analysing the image I detected that it is not completely B&W, even if it looks so: most pixels have different values for each RGB channel. On the other hand, any chromatic aberration should have been eliminated while doing the conversion to B&W.

How did you edit the image? How did you do the conversion to B&W?

Title: Re: Help with image problems...
Post by: photomancottrell on September 05, 2010, 08:26:27 pm

i did the BW conversion using OnOne's Phototools. 

Title: Re: Help with image problems...
Post by: solardarkroom.com on September 20, 2010, 03:54:22 pm

Did you flip/rotate the image to see if the purple moves?