Could It Be? Could It Be? Yes It Is An 830B!

The differences in your image of your block and PF's image or your block are proof as to why one can not compare colors for images from 2 different scanners.

Eyeonwall is exactly right. I doubt there is a more misunderstood technical topic in this forum than generating stamp images. I am reminded of watching my television and seeing commercials for other 'great' looking televisions screens being offered for sale. (Oddly enough those screens always seem to reflect the quality of MY television screen and signal provider! )

Remove technology from the color discussion and let's assume we were all standing in the same room with stamps in hand. Would we all see the same colors and shades? And even if we did, no one could say for sure what exact color the stamp(s) might have been when it was freshly printed 50 or more years ago. Has the stamp(s) ever been exposed to any chemicals like lighter fluid? Has a used stamp been soaked in chlorine tap water? Has it been sitting in an acidic wooden cigar box or desk drawer? Did the stamp originally sit on a cover thrown on a dashboard of a car for few weeks? Did it sit on a desk under a window for a while? (We didn't always have electric lights!) Even if a person had total knowledge of a stamp(s) storage conditions over the decades no one could say for sure that the colors had not changed over time. Pure color pigments chemically change over time, never mind the diluted inks which contain the pigments.

But when we return to trying to comparing stamp images we often seem to generate even more confusion. Simply put; we aren't comparing stamps, we are comparing images. We are comparing a user's scanner and scanner software. We are comparing a user's scanning and image saving process. We are comparing our display monitors. We are comparing everything but the stamps actual color.

IF a person scans two stamps at the same time, a relative color comparison might be of some value. This value might be good enough to consider spending money on a cert.
Don

From Cilateliph,



Any comments?

Aside from all of the above on color, we also filter it through our own level of knowledge and experience, what we learned/were taught a color or shade is supposed to look like. That can only be done with a stamp of course, not an image. It is sometimes possible to use the impression itself to make an educated guess about the accuracy of a shade. I sometimes do that with first issue revenues.

Could be any one of a hundred reasons; anything from user error to dirt on the platen.

I have seen many, many scanners (Epson especially) that have with a 'haze' or dirt on the underside of the platen. This is due to the grease that they use on the moving parts. As the scanner is heats up and is used over time the grease vaporizes and sticks to the underside of the glass surface. This results in not only a haze but also a great place for additional foreign material/dirt to 'stick'.

I also think that Siegel uses some kind of process or software manipulation of their online images. All their images have the same, somewhat 'flat' appearance. It appears to be very consistent across all stamp images. When I view their images and then see other images of the same stamp there is a noticeable difference. I am not saying that they intentionally are manipulating the image for some nefarious reason. I think that they settled on a scanning process and/or software which is doing this. Chances are good that this was done to save time and/or disk space. Siegel images are sharp and fine for showing details but I am a bit leery when it comes to their colors representation.
Don

Ray

Ah - mine is actually the "Hard Rain" re-entry!

Geoff

Exactly

Thank you for your posts,

If I had to choose a song that related to this thread, it would have to be "Purple Haze" Jimi Hendrix, "Are you Experienced" Album, 1967.

The revised PF certificate!

Nice rlm
New cert looks like a little lighter blue lol!

What was revised?

The example was sent back to the PF for re scanning.
Check the earlier cert scan. This scan seems right on!

What caused the different shades of color? Intentionally different inks? Unintentionally different inks? Other? Does anyone know? How common are different shades of color on Prexies? On other "old" U.S. stamps?

Thank you.

Hi Paul, I am am still trying to find the answers to some of your questions. Some may be answered in Roland Rustad's book "The Prexies".
Some of your other question's are addressed earlier in this thread.

Stay tuned!

Thought you all would like to look at this listing.


billsbargainstamps, caught another fish.

http://www.ebay.com/itm/830b-ROOSEV...047675.l2557