BP wrote on Apr 29
th, 2018 at 3:10pm:
I have both of Campbell's books, so the referenced page numbers with the "misinterpretations & outright inventions" you've claimed exist would definitely be helpful to myself and many others on this forum.
Get out your notebook, & Vol. 2.
Page 194--re: "fire-saled" A5s, allegedly due to quality-control issues. No-most of these were military-purchased scopes used for purposes other than sniper issue, such as artillery bore scopes, which were auctioned off after WWI.
Page 195--here begins his reiteration of the Prof. Hastings myth of "compensating errors." Talk to a competent optical engineer (which I did): sheer marketing nonsense. Anybody with an optical bench can measure the characteristics of a lens system--there are no "secrets" to be hidden.
Page 196-7--here is presented his crackpot theory of a "trick lens system" contrived not by the Prof but copied from the Cummins Duplex scope. (Which you can learn more about in GD 2005, if you're interested.) His bizarre misinterpretation of the ray-tracing shown in the Cummins patent drawing reveals that he must have been too busy theorizing to consult an elementary optics manual that would have explained what he was looking at in this drawing. '"I'm sure to get myself in trouble on this one too." Serious scholars of anything usually take pains to avoid getting themselves "in trouble" with uninformed speculation.
Page 197--"purchased Stevens Scope Co." Need I say more?
Page 221--another reference to the nonsense of "optical trickery" again.
Incidentally, much of what appeared in this A5 discussion bears a rather remarkable resemblance to two papers which appeared in the May & July, 1998, issues of the SSJ; that's several months prior to the publication of Vol. 2.