The image you've posted is an iphone 'photo' of a .pdf of an openoffice spreadsheet that was posted by me here on APUG: http://www.apug.org/forums/attachmen...nchart.pdf.att
Originally Posted by heespharm
in this thread:
Please do not post it to flickr as if it were a image created and copyrighted by you. It's not either of those things. Please reference the original here on APUG with a link to the .pdf, and don't reproduce it on your flickr account. I want it to stay with the original text and in its original context, with proper credit and attribution to Howard Bond for the experimental data on which the spreadsheet is based, and to Patrick Gainer, as the formula I used is the same as a method he published in PhotoTechniques with one small change. The internet is bad enough about taking things out of context and without attribution without us making proper sources even harder to track. Information of this kind without context and attribution becomes meaningless and useless noise.
BTW, my sources, among them Robert Reeves' Wide Field Astrophotography, test FP4+ and HP5+ as having differing rates of reciprocity failure.
P.S. I see that you've also included several iphone images of pages from an Ansel Adams book on your flickr account next to the one of mine that you took. That's not fair use, and you should probably remove them as well before flickr gets complaints.
Last edited by Lee L; 12-06-2010 at 02:59 PM. Click to view previous post history.