Example of a cleaned coin

Also I just so happened to have a Franklin proof that also has some very light damage in the field.

 

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And a heavily cleaned quarter...

 

And also! I went to Lowe's and got some incandescent style led bulbs and they have the same exact effect as the incandescent.

 

And this is with halogen..obviously also effective and much brighter. Notice how the light gets down much deeper into the shadows compared to any other light.

 

Awesome experimentation!
those Feit Electric LED bulbs are soft white, 2700K (similar to incandescent) 800 Lumen (similar to 60 watt output) and the CRI of that particular bulb is 92. it's very close to incandescent in every way, just a tad lower on CRI but not that far out.

Where this went wrong I think, was in the early days of Halogen and LED, it wasn't apples to apples, CRI was trash, Kelvin and Lumen was unknown quantities that meant nothing to most people that only really knew "60W, 75W, 100W" and a lot of people didn't consider that with the lighting for grading, and popped in a new fangled bulb and automatically said "well halogen or LED is no good, it's too bright and washes everything out".

it's not necessarily the case, but you do have to be in the same neighborhoods of Kelvin, lumen, and CRI to get a similar performance as incandescent, if any one area is "off" viewing things well will be difficult, or impossible, or just plain tiring on the eyes from the strain if that far off.

you get likes from me just for the work done here on this!

 

Good conclusion. Many thanks sir.