Quote:
Originally Posted by bmarlowe1
Exactly what illusionary effects unique to dags are present that would explain the specific gross differences apparent in the above images?
On p. 29 I said:
As to lighting and head angle, again there is no explanation given as to of how this would cause the observed feature differences. It is as if the differing light sources or small differences in head angle exhibited in these photos would magically change the apparent shape of numerous key features in a way we could not understand. However, the differences seen here cannot just be dismissed as illusions. If that contention is true, we should easily be able to find such multiple feature differences among clear photos of the same player from the many thousands of available early ballplayer images. I contend that such a find would be at least extremely rare.
Please tell us how the dag process or hand tinting can, for example, change the shape of the lower edge of the upper lid in these two clearly open eyes from subjects C and A. This feature is apparent in all the subject A images.
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First, they're gross differences to you. Please allow that others might feel differently.
Second, what blows my mind about this is that you raise a point in your response yet prohibit me from seeking a response from Mr. Richards. Wasn't it the case that the publication of the newsletter supplement was delayed for a few days while you and I went back and forth on whether my reference to lens focal length was generated by the knowledge I obtained from being a college physics major who studied optics, as opposed to being obtained from Jerry Richards? (Let me guess-reference to another private communication). Only when I satisfied you that I did not obtain it from Jerry Richards did you consent to have it published. You can't behind the scenes put conditions on what a person may do/say and then criticize him for adhering to your conditions.
Third, as a partial answer to your question, iris size. Mr. Mancusi felt he saw a very significant discrepancy, which I believe influenced him greatly in his conclusion. Yet in the end that discrepancy turned out not to exist. (And please don't mention the 20% difference you still see. May I respectfully suggest you educate yourself on margin of error analysis associated with daguerreotype emulsion type.)