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Origyptian Wrote:

> So then, perhaps it really was a 'stain' after all
> and not just a flash artifact.

If it is white candle wax then the illuminant (flash) has made a very good job of rendering it as exactly what it is, white candle wax.
Or an unknown white residue.
Anything that appears as white obviously has a higher reflective index and reflects all wavelengths equally than anything that is not white. Which is exactly why it appears as white and we refer to it as white.
Black being identical in that it reflects all wavelengths equally but at a much lower amplitude (intensity) therefore appears as very dark white... Which we call black.
Yes, black and white are the same in terms of spectral reflectance.
Halfway in terms of reflectance (reflected amplitude) is called grey. More specifically 18% grey.

The other localised white hotspots/artifacts are specular highlights which occur when a part of the reflective surface (the wall) that is positioned at exactly the right angle relative to the flash and lens reflect the transmitted light directly back into the camera lens. If you illuminate a surface you will see a hotspot. For example catchlights in a persons eye.
A specular highlight.
In reality there are no white dots in the persons iris.

In the photos the spectral highlights (Hotspots on the wall) are remote from the 'stains'. The 'stains' therefore not being at the optimum position and angle to produce spectral highlights.
The stains appear in the photograph as being white because they are white, High reflective index and reflecting all wavelengths equally.

Something else to consider is orthochromatic or panchromatic photographic emulsion.
Early emulsions were orthochromatic in that they were less sensitive at the red end of the spectrum. Later panchromatic being equally sensitive to all wavelengths.
Orthochromatic emulsions continued to be used in darkrooms (printing), as they are unaffected by red light. "Darkroom Safelight"

Trivia.
Look at a early B&W orthochromatic photo of a red white and blue flag. The red will appear as near black.
A later panchromatic emulsion will render the red as grey.
Airplane's are good because they tend to have red white and blue national insignia. WW1 planes vs. WW2 planes.
Americans were earlier and better at it than Europeans because George Eastman (Mr. Kodak) was an American.
They didn't want to share the technology for commercial and military reasons. (Hollywood/Wars)
Kinda like the wheel ;)

So yes it could very well be a white residue or stain that was once in liquid form as demonstrated by the flow pattern.
I don't know how one would determine the exact chemical nature of the white stain.
An as yet undefined white stain?

Rant over:)

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Water marks on King's Chamber shaft opening 2358 Romulus the 2nd 13-Aug-17 14:57
Re: Water marks on King's Chamber shaft opening 468 Thanos5150 13-Aug-17 15:58
Re: Water marks on King's Chamber shaft opening 448 Romulus the 2nd 13-Aug-17 16:14
Re: Water marks on King's Chamber shaft opening 434 Jon Ellison 13-Aug-17 16:25
Re: Water marks on King's Chamber shaft opening 357 Romulus the 2nd 13-Aug-17 16:32
Re: Water marks on King's Chamber shaft opening 313 Jon Ellison 13-Aug-17 16:41
Re: Water marks on King's Chamber shaft opening 302 Romulus the 2nd 13-Aug-17 16:38
Re: Water marks on King's Chamber shaft opening 324 Jon Ellison 13-Aug-17 16:52
Re: Water marks on King's Chamber shaft opening 327 Romulus the 2nd 13-Aug-17 16:58
Re: Water marks on King's Chamber shaft opening 351 Jon Ellison 13-Aug-17 17:06
Re: Water marks on King's Chamber shaft opening 265 Thanos5150 14-Aug-17 20:04
Re: Water marks on King's Chamber shaft opening 395 Thanos5150 13-Aug-17 18:31
Re: Water marks on King's Chamber shaft opening 346 Romulus the 2nd 13-Aug-17 21:24
Re: Water marks on King's Chamber shaft opening 370 Thanos5150 13-Aug-17 23:57
Re: Water marks on King's Chamber shaft opening 330 Romulus the 2nd 14-Aug-17 08:53
Re: Water marks on King's Chamber shaft opening 272 Jon Ellison 14-Aug-17 10:06
Re: Water marks on King's Chamber shaft opening 259 Romulus the 2nd 14-Aug-17 22:38
Re: Water marks on Queen's Chamber 335 Howard West 13-Aug-17 23:59
Re: Water marks on Queen's Chamber 343 Jon Ellison 14-Aug-17 00:40
Re: Water marks on Queen's Chamber 306 Howard West 14-Aug-17 14:59
Re: Water marks on Queen's Chamber 241 D-Archer 15-Aug-17 10:35
Re: Water marks on Queen's Chamber 251 Origyptian 15-Aug-17 13:41
Re: Water marks on Queen's Chamber 222 D-Archer 15-Aug-17 14:13
Re: Where the salt water came from 262 Howard West 15-Aug-17 14:44
Re: Water marks on Queen's Chamber 214 Origyptian 15-Aug-17 16:23
Re: Water marks on King's Chamber shaft opening 307 Thunderbird 14-Aug-17 00:48
Re: Water marks on King's Chamber shaft opening 266 gulsbo 15-Aug-17 16:24
Re: Water marks on King's Chamber shaft opening 297 Origyptian 15-Aug-17 16:55
Re: Water marks on King's Chamber shaft opening 215 Romulus the 2nd 16-Aug-17 22:46
Re: Water marks on King's Chamber shaft opening 274 M. J. Thomas 14-Aug-17 09:16
Re: Water marks on King's Chamber shaft opening 269 Merrell 14-Aug-17 11:34
Re: Water marks on King's Chamber shaft opening 261 Romulus the 2nd 14-Aug-17 12:03
Re: Water marks on King's Chamber shaft opening 229 M. J. Thomas 14-Aug-17 16:05
Re: Water marks on King's Chamber shaft opening 256 Origyptian 14-Aug-17 17:30
Re: Water marks on King's Chamber shaft opening 218 M. J. Thomas 14-Aug-17 19:00
Re: Water marks on King's Chamber shaft opening 221 Origyptian 14-Aug-17 20:33
Re: Water marks on King's Chamber shaft opening 216 M. J. Thomas 14-Aug-17 22:31
Re: Water marks on King's Chamber shaft opening 241 Jon Ellison 14-Aug-17 23:12
Re: Water marks on King's Chamber shaft opening 234 Origyptian 14-Aug-17 23:40
Re: Water marks on King's Chamber shaft opening 212 Jon Ellison 15-Aug-17 00:12
Re: Water marks on King's Chamber shaft opening 252 M. J. Thomas 15-Aug-17 00:45
Re: Water marks on King's Chamber shaft opening 269 Jon Ellison 15-Aug-17 07:54
Re: Water marks on King's Chamber shaft opening 215 Origyptian 15-Aug-17 13:36
Re: Water marks on King's Chamber shaft opening 227 Origyptian 14-Aug-17 23:25
Re: Water marks on King's Chamber shaft opening 197 Jon Ellison 14-Aug-17 23:39
Re: Water marks on King's Chamber shaft opening 249 cladking 15-Aug-17 00:59
Re: Water marks on King's Chamber shaft opening 254 Jon Ellison 14-Aug-17 12:51
Re: Water marks on King's Chamber shaft opening 218 Romulus the 2nd 14-Aug-17 14:13
Re: Water marks on King's Chamber shaft opening 255 Thunderbird 15-Aug-17 01:18
Re: Water marks on King's Chamber shaft opening 229 Origyptian 14-Aug-17 15:57
Re: Water marks on King's Chamber shaft opening 293 cladking 14-Aug-17 17:31
Re: Water marks on King's Chamber shaft opening 232 Jon Ellison 14-Aug-17 19:08
Re: Water marks on King's Chamber shaft opening 244 Origyptian 14-Aug-17 20:40
Re: Water marks on King's Chamber shaft opening 397 Thanos5150 14-Aug-17 16:37
Re: Water marks on King's Chamber shaft opening 317 Origyptian 14-Aug-17 17:52
Re: Water marks on King's Chamber shaft opening 290 M. J. Thomas 14-Aug-17 20:08
Re: Water marks on King's Chamber shaft opening 117 Origyptian 14-Aug-17 20:44
Re: Water marks on King's Chamber shaft opening 328 Thanos5150 14-Aug-17 21:00
Re: Water marks on King's Chamber shaft opening 253 Romulus the 2nd 14-Aug-17 22:41
Re: Water marks on King's Chamber shaft opening 241 Jon Ellison 14-Aug-17 22:57
Re: Water marks on King's Chamber shaft opening 226 Origyptian 14-Aug-17 23:32
Re: Water marks on King's Chamber shaft opening 247 Romulus the 2nd 15-Aug-17 12:42
Re: Water marks on King's Chamber shaft opening 296 Origyptian 15-Aug-17 14:29
Re: Water marks on King's Chamber shaft opening 230 Romulus the 2nd 15-Aug-17 15:55
Re: Water marks on King's Chamber shaft opening 263 Origyptian 15-Aug-17 16:38
Re: Water marks on King's Chamber shaft opening 206 Thanos5150 15-Aug-17 21:11
Re: Water marks on King's Chamber shaft opening 209 Romulus the 2nd 15-Aug-17 22:45
Re: Water marks on King's Chamber shaft opening 226 Jon Ellison 15-Aug-17 23:06
Re: Water marks on King's Chamber shaft opening 235 M. J. Thomas 15-Aug-17 15:36
Re: Water marks on King's Chamber shaft opening 245 Romulus the 2nd 15-Aug-17 16:04
Re: Water marks on King's Chamber shaft opening 295 Jon Ellison 15-Aug-17 16:26
Re: Water marks on King's Chamber shaft opening 238 M. J. Thomas 15-Aug-17 19:25
Re: Water marks on King's Chamber shaft opening 209 Origyptian 15-Aug-17 20:09
Re: Water marks on King's Chamber shaft opening 236 M. J. Thomas 15-Aug-17 21:53
Re: Water marks on King's Chamber shaft opening 221 Origyptian 15-Aug-17 22:14
Re: Water marks on King's Chamber shaft opening 218 Jon Ellison 15-Aug-17 20:26
Re: Water marks on King's Chamber shaft opening 232 M. J. Thomas 15-Aug-17 21:24
Re: Water marks on King's Chamber shaft opening 215 M. J. Thomas 15-Aug-17 21:27
Re: Water marks on King's Chamber shaft opening 216 Jon Ellison 15-Aug-17 22:57
Re: Water marks on King's Chamber shaft opening 243 M. J. Thomas 15-Aug-17 23:38
Re: Water marks on King's Chamber shaft opening 199 Origyptian 15-Aug-17 23:04
Re: Water marks on King's Chamber shaft opening 240 M. J. Thomas 15-Aug-17 23:53
Re: Water marks on King's Chamber shaft opening 247 Origyptian 16-Aug-17 00:49
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Re: Great Step ‘V-Shape’ Depression 238 Origyptian 16-Aug-17 00:47
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Re: Great Step ‘V-Shape’ Depression 248 Origyptian 16-Aug-17 03:38
Re: Great Step ‘V-Shape’ Depression 190 Jon Ellison 16-Aug-17 14:03
Re: Great Step ‘V-Shape’ Depression 245 Romulus the 2nd 16-Aug-17 22:17
Re: Great Step ‘V-Shape’ Depression 275 Romulus the 2nd 16-Aug-17 22:44
mise–en–scène 368 Dr. Troglodyte 16-Aug-17 23:29
Re: Water marks on King's Chamber shaft opening 311 Origyptian 14-Aug-17 23:05
Re: Water marks on King's Chamber shaft opening 246 Romulus the 2nd 15-Aug-17 11:34
Re: Water marks on King's Chamber shaft opening 251 Jon Ellison 15-Aug-17 12:16
Re: Water marks on King's Chamber shaft opening 251 Origyptian 15-Aug-17 13:46
Re: Water marks on King's Chamber shaft opening 262 Thanos5150 15-Aug-17 20:57
Re: Water marks on King's Chamber shaft opening 245 Origyptian 15-Aug-17 21:58
Re: Water marks on King's Chamber shaft opening 226 Apap 15-Aug-17 23:33
Re: Water marks on King's Chamber shaft opening 237 Origyptian 16-Aug-17 00:44
Re: Water marks on King's Chamber shaft opening 173 Thanos5150 16-Aug-17 01:13
Re: Water marks on King's Chamber shaft opening 222 Thanos5150 16-Aug-17 01:25
Re: Water marks on King's Chamber shaft opening 249 Thanos5150 16-Aug-17 01:31
Re: Water marks on King's Chamber shaft opening 212 Origyptian 16-Aug-17 03:47
Re: Water marks on King's Chamber shaft opening 277 Thanos5150 16-Aug-17 04:41
Re: Water marks on King's Chamber shaft opening 206 Origyptian 16-Aug-17 12:29
Re: Water marks on King's Chamber shaft opening 270 Thanos5150 16-Aug-17 14:30
Re: Water marks on King's Chamber shaft opening 229 Jon Ellison 16-Aug-17 13:01
Re: Water marks on King's Chamber shaft opening 325 Romulus the 2nd 16-Aug-17 21:03
Re: Water marks on King's Chamber shaft opening 248 eyeofhorus33 17-Aug-17 17:27
Re: Water marks on King's Chamber shaft opening 275 cladking 17-Aug-17 18:09
Re: Water marks on King's Chamber shaft opening 302 eyeofhorus33 17-Aug-17 19:12
Re: Water marks on King's Chamber shaft opening 259 cladking 17-Aug-17 21:43
Re: Water marks on King's Chamber shaft opening 251 Romulus the 2nd 17-Aug-17 23:18
Re: Water marks on King's Chamber shaft opening 209 Origyptian 18-Aug-17 16:42
Re: Water marks on King's Chamber shaft opening 235 Jon Ellison 18-Aug-17 16:56
Re: Water marks on King's Chamber shaft opening 231 Romulus the 2nd 18-Aug-17 19:44
Re: Water marks on King's Chamber shaft opening 211 Origyptian 18-Aug-17 20:04
Re: Water marks on King's Chamber shaft opening 217 Jon Ellison 18-Aug-17 20:44
Re: Water marks on King's Chamber shaft opening 213 Origyptian 18-Aug-17 21:07
Re: Water marks on King's Chamber shaft opening 197 Thanos5150 18-Aug-17 22:10
Re: Water marks on King's Chamber shaft opening 230 Apap 18-Aug-17 22:35
Re: Water marks on King's Chamber shaft opening 207 Jon Ellison 18-Aug-17 23:05
Re: Water marks on King's Chamber shaft opening 257 Thanos5150 18-Aug-17 23:30
Re: Water marks on King's Chamber shaft opening 224 Apap 18-Aug-17 23:32
Re: Water marks on King's Chamber shaft opening 206 Jon Ellison 18-Aug-17 23:49
Re: Water marks on King's Chamber shaft opening 213 Apap 19-Aug-17 00:03
Re: Water marks on King's Chamber shaft opening 241 Jon Ellison 19-Aug-17 00:08
Re: Water marks on King's Chamber shaft opening 142 Romulus the 2nd 22-Aug-17 10:00
Re: Water marks on King's Chamber shaft opening 142 Jon Ellison 22-Aug-17 11:21
Re: Water marks on King's Chamber shaft opening 162 Jon Ellison 22-Aug-17 11:39
Re: Water marks on King's Chamber shaft opening 165 Romulus the 2nd 22-Aug-17 21:06
Re: Water marks on King's Chamber shaft opening 176 Origyptian 22-Aug-17 12:02
Re: Water marks on King's Chamber shaft opening 115 Romulus the 2nd 22-Aug-17 21:15
Re: Water marks on King's Chamber shaft opening 144 Origyptian 23-Aug-17 04:01
Re: Water marks on King's Chamber shaft opening 198 Audrey 23-Aug-17 02:09
Re: Water marks on King's Chamber shaft opening 167 Origyptian 23-Aug-17 04:06
Re: Water marks on King's Chamber shaft opening 280 Jon Ellison 23-Aug-17 08:57
Re: Water marks on King's Chamber shaft opening 214 Jon Ellison 19-Aug-17 00:04
Re: Water marks on King's Chamber shaft opening 228 Origyptian 19-Aug-17 15:34
Re: Water marks on King's Chamber shaft opening 345 Apap 17-Aug-17 18:45
Re: Water marks on King's Chamber shaft opening 284 Romulus the 2nd 18-Aug-17 00:36
Re: Water marks on King's Chamber shaft opening 268 Jon Ellison 18-Aug-17 10:05
Re: Water marks on King's Chamber shaft opening 236 Origyptian 18-Aug-17 17:23
Re: Water marks on King's Chamber shaft opening 208 M. J. Thomas 18-Aug-17 18:22
Re: Water marks on King's Chamber shaft opening 247 Jon Ellison 18-Aug-17 19:12
Re: Water marks on King's Chamber shaft opening 285 Origyptian 18-Aug-17 20:23
Re: Water marks on King's Chamber shaft opening 230 Romulus the 2nd 18-Aug-17 19:49
Re: Water marks on King's Chamber shaft opening 210 Origyptian 18-Aug-17 16:50
Re: Water marks on King's Chamber shaft opening 260 Apap 18-Aug-17 18:05
Re: Water marks on King's Chamber shaft opening 212 Jon Ellison 18-Aug-17 19:20
Re: Water marks on King's Chamber shaft opening 214 Jon Ellison 18-Aug-17 19:58
Re: Water marks on King's Chamber shaft opening 222 Jon Ellison 18-Aug-17 20:28
Re: Water marks on King's Chamber shaft opening 198 Origyptian 18-Aug-17 20:15
Re: Water marks on King's Chamber shaft opening 237 Romulus the 2nd 18-Aug-17 20:16
Re: Water marks on King's Chamber shaft opening 247 Apap 18-Aug-17 22:02
Re: Water marks on King's Chamber shaft opening 207 Origyptian 19-Aug-17 15:10
Re: Water marks on King's Chamber shaft opening 150 Romulus the 2nd 20-Aug-17 21:59
Re: Water marks on King's Chamber shaft opening 240 DUNE 19-Aug-17 12:16
Re: Water marks on King's Chamber shaft opening 230 M. J. Thomas 19-Aug-17 20:54
Re: Water marks on King's Chamber shaft opening 238 Jon Ellison 19-Aug-17 22:04
Re: Water marks on King's Chamber shaft opening 235 DUNE 19-Aug-17 22:51
Re: Water marks on King's Chamber shaft opening 199 Origyptian 19-Aug-17 23:17
Re: Water marks on King's Chamber shaft opening 237 Origyptian 21-Aug-17 03:02
Re: Water marks on King's Chamber shaft opening 216 Jon Ellison 21-Aug-17 09:27
Re: Water marks on King's Chamber shaft opening 195 Origyptian 22-Aug-17 05:21
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Re: KC Watertight flooring 266 Jon Ellison 20-Aug-17 07:41
Re: KC Watertight flooring 163 M. J. Thomas 20-Aug-17 17:26
Re: Water marks on King's Chamber shaft opening 220 Apap 18-Aug-17 21:43
Re: Water marks on King's Chamber shaft opening 223 Dr. Troglodyte 18-Aug-17 22:54
Re: Water marks on King's Chamber shaft opening 261 Apap 18-Aug-17 23:51
Re: Water marks on King's Chamber shaft opening 284 Origyptian 19-Aug-17 15:53
Re: Water marks on King's Chamber shaft opening 190 M. J. Thomas 20-Aug-17 00:55
Re: Water marks on King's Chamber shaft opening 168 Origyptian 20-Aug-17 04:15


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