It is only in the last few months that I have been trying to get my photos into a finalized print ready and portfolio form. This has had to do with past time constraints, but also with my knowledge and ability to process the images effectively. I've gotten better at this photoshop thing, and have been working on a lot of the older photos. What I'm coming across all too often is a snake or worm type striping in a lot of my Pentax 645D files. It happens more in patterned areas. I notice it all the time in my water - wave images, but also to some extent in almost all my digital files.
I see this happening to a lot of other images I see being posted from others also, so I don't think its just my particular camera. Even saw this with Sony's A-7 in one of their ads.
I'm wondering if there is something I should be doing differently while shooting. Is the sensor overheating when I do many shots in succession or by using longer exposures? Is there a way to process the files to somewhat ameliorate this phenomenon? I realize anything that adds contrast or clarity will make this worse. What type of artifact is this? What's it called?
I find myself using various masking techniques and a lot of cloning and healing to try and hide - fix the photos. It's very frustrating and I'm wondering what other folks are doing?
The ice shot is from the Pentax and has just been quickly adjusted in Lightroom. The striping is very apparent. The dune shot was worked on years ago and has some corrections done to it. The original is a 4x5 velvia scanned with an Epson 750 and converted to Black and White. I believe there was some of this wormy thing that happened with the scanned image that I cloned out (worked on this a long time ago), but nothing like what I see in my Pentax files. Almost makes me want to dust off the old Toya, and see if I still know how to shoot film. Or do I need to sell the house, live in the camper, and go with an IQ something with all the trimmings.