Re: The Greville Emerald Brooch - only one stone Archived Message
Posted by Franck on November 30, 2016, 5:04 am, in reply to "Re: The Greville Emerald Brooch - only one stone"
Dear Baxter, I am also delighted to see that the mystery has been solved. --Previous Message-- : Thank you Baxter for this very clear proof of : the impact colour processing has on images.I : was delighted to see that the mystery has : been solved. : : --Previous Message-- : : I must agree with the others above and in : the previous thread who say that this brooch : has only ever contained an emerald when worn : by the Queen Mother. : : As has already been stated, when comparing : photographs of jewels we must take into : account how lighting can greatly change the : appearance of a stone and how quickly that : can change when the jewel is moved even a : millimeter. : : Another factor we must also consider is how : vastly different photographs can appear : depending on the camera and the way in which : the photo is processed. Compare these two : photos from HM's 94th birthday taken just : moments apart but by different : photographers: : : : : : In the first photo the color of the emerald : is very apparent, yet in the second there is : almost no indication of green. Here's a : side-by-side comparison: : : : : However, even when I edit the photo to : adjust the color, the green is more apparent : but the stone still appears quite different : due to the way the light was hitting it. : This is why both lighting and photo : processing must be considered when comparing : colored stones in different photos. : : : : : : : :
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