Roosevelt Dime Experts Please Help

Is it easy to tell the difference between a PCGS Proof CAM and Proof DCAM clad Roosevelt dime?
I have looked at several photographs online and can't easily see the difference. But there is a big difference in price!
Thanks, Charlie

Thanks, Charlie

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The photos on my Jefferson nickel web page show some different stages. The '38 has slight cameo contrast and would NOT be considered cameo. The '65, while it is a SMS, has solid cameo contrast. The '78 is a strong, no questions asked, Deep Cameo coin.
the first is the frost you alluded to - mostly complete on both obverse and reverse
the second (and difficult to capture with photos) is the depth of field / mirror
=- it is somewhat comparable to PL and DMPL commonly seen in Morgans
=- if you hold the coin and look at it from an angle, how many reflections do you see in the field (flat surface) of the device
Charlie
The mint decided to start making money off of collectors when they took away silver coins 39 years ago
Since then - they have made 2 million + proof sets a year - there are probably thousands of PR68+ DCAMs that are raw in plastic covered sets ( maybe hundreds of thousands in recent years )
the population reports do not tell you much, because many dates need grades very high just to pay for slabbing costs
If you really want to collect clad Roosies - a lower scored (67 or lower) set probably can be collected for under slabbing costs - the 69's and 70's will cost more - but very uncertain on how they will would their value - if they start becoming worth more, people will start looking at the couple million proof sets for that year
The difference between a 69 and 70? need a microscope to tell?
your 68 and 69 look similar but the 69 is probably a little better somewhere - do the fields look like water on the 69? Is there some haze or areas or poorer reflection in the fields on the 68?