{"id":30990,"date":"2025-03-13T01:03:00","date_gmt":"2025-03-13T05:03:00","guid":{"rendered":"https:\/\/phsc.ca\/camera\/?p=30990"},"modified":"2025-03-11T22:53:28","modified_gmt":"2025-03-12T02:53:28","slug":"looking-at-small-things-1680-style","status":"publish","type":"post","link":"https:\/\/phsc.ca\/camera\/looking-at-small-things-1680-style\/","title":{"rendered":"Looking at Small Things – 1680 style"},"content":{"rendered":"
\"\"<\/a>

an early single lens microscope c1680 – reproduced by Zeiss staff as an exercise<\/p><\/div>\n

Toronto<\/strong>. When I was a kid, an issue of Popular Mechanics magazine showed how the tiny lens of a pen-light 1.5v bulb could be used as a powerful (about 200x) microscope – just like one made by Leeuwenhoek in Delft, Netherlands.<\/p>\n

In issue 22-2, editor Everett Roseborough, discussed a tiny Zeiss object \u00a0(barely a handful) he saw at a 1996 \u00a0Zeiss Historica meeting. It was a reproduction of the tiny Leeuwenhoek single lens microscope once used to see tiny things including bacteria (the hand-crafted lenses had different focal lengths and were estimated to be anywhere from 50x to 500x magnification).<\/p>\n

I mentioned in an earlier post that many camera collectors also collect other strange optical instruments – this was such a device. Ev opens his artcle by saying, “This <\/span>re<\/span>productio<\/span>n <\/span>o<\/span>f a <\/span>Lee<\/span>uwe<\/span>nhoe<\/span>k\u00a0Microsco<\/span>pe <\/span>is <\/span>a <\/span>pro<\/span>duc<\/span>t o<\/span>f Ze<\/span>i<\/span>ss <\/span>Re<\/span>fl<\/span>ex <\/span>–\u00a0a <\/span>co<\/span>mpa<\/span>ny w<\/span>ithin a <\/span>co<\/span>mpa<\/span>ny <\/span>tha<\/span>t nee<\/span>ds\u00a0<\/span>no <\/span>intro<\/span>duc<\/span>ti<\/span>o<\/span>n.<\/span><\/p>\n

“Mi<\/span>c<\/span>hae<\/span>l Ke<\/span>r<\/span>s<\/span>te<\/span>n o<\/span>f Ca<\/span>rl <\/span>Ze<\/span>iss <\/span>In<\/span>c.<\/span>, N<\/span>.<\/span>Y.<\/span>, <\/span>s<\/span>howe<\/span>d it <\/span>to <\/span>me a<\/span>t th<\/span>e <\/span>Ze<\/span>iss\u00a0<\/span>Hi<\/span>st<\/span>ori<\/span>ca<\/em> m<\/span>eetin<\/span>g at T<\/span>oront<\/span>o, <\/span>and h<\/span>avin<\/span>g\u00a0o<\/span>ne <\/span>in <\/span>my <\/span>co<\/span>ll<\/span>ec<\/span>ti<\/span>o<\/span>n be<\/span>ca<\/span>me <\/span>impe<\/span>ra<\/span>ti<\/span>ve.<\/span><\/p>\n

“Z<\/span>ei<\/span>ss R<\/span>efl<\/span>ex i<\/span>s a co<\/span>mp<\/span>an<\/span>y wh<\/span>er<\/span>e n<\/span>ew\u00a0<\/span>empl<\/span>oyees in <\/span>m<\/span>ark<\/span>etin<\/span>g, t<\/span>ec<\/span>hn<\/span>ol<\/span>ogy and\u00a0<\/span>oth<\/span>er <\/span>ph<\/span>ases of c<\/span>omp<\/span>an<\/span>y p<\/span>oli<\/span>cy and\u00a0<\/span>a<\/span>ctiv<\/span>it<\/span>y <\/span>rece<\/span>i<\/span>ve <\/span>tra<\/span>inin<\/span>g<\/span>. <\/span>They <\/span>de<\/span>cide o<\/span>n\u00a0pro<\/span>jec<\/span>ts a<\/span>nd ca<\/span>rry <\/span>the<\/span>m t<\/span>o c<\/span>omple<\/span>ti<\/span>o<\/span>n. <\/span>I\u00a0<\/span>b<\/span>el<\/span>ieve th<\/span>ese repli<\/span>cas ar<\/span>e p<\/span>ar<\/span>t of <\/span>th<\/span>e a<\/span>ppre<\/span>nti<\/span>ces<\/span>hip prog<\/span>ra<\/span>m.<\/span><\/p>\n

“In <\/span>th<\/span>e <\/span>pa<\/span>mphle<\/span>t whic<\/span>h <\/span>acco<\/span>mpa<\/span>ni<\/span>es\u00a0<\/span>t<\/span>he <\/span>re<\/span>plica, <\/span>Ze<\/span>iss <\/span>ma<\/span>in<\/span>ta<\/span>in<\/span>s <\/span>tha<\/span>t\u00a0Lee<\/span>uwe<\/span>nh<\/span>oe<\/span>k was a <\/span>ba<\/span>ke<\/span>r by <\/span>tra<\/span>de<\/span>, <\/span>this\u00a0<\/span>co<\/span>uld be a <\/span>tra<\/span>ns<\/span>l<\/span>a<\/span>ti<\/span>o<\/span>n e<\/span>rro<\/span>r as <\/span>was <\/span>“<\/span>vo<\/span>n<\/span>”\u00a0<\/span>L<\/span>eeu<\/span>wenh<\/span>oe<\/span>k<\/span>.<\/p>\n

“Th<\/span>e <\/span>in<\/span>s<\/span>trume<\/span>nt <\/span>is <\/span>b<\/span>ea<\/span>utif<\/span>ull<\/span>y\u00a0<\/span>p<\/span>oli<\/span>sh<\/span>ed but I<\/span>\u00a0<\/span>feel <\/span>th<\/span>at th<\/span>e good <\/span>An<\/span>toni <\/span>‘s\u00a0<\/span>ha<\/span>ndi<\/span>wo<\/span>rk wo<\/span>uld <\/span>no<\/span>t have <\/span>bee<\/span>n, <\/span>but\u00a0ra<\/span>th<\/span>e<\/span>r b<\/span>l<\/span>ac<\/span>ke<\/span>ne<\/span>d.<\/span><\/p>\n

“H<\/span>e was <\/span>th<\/span>e fir<\/span>st m<\/span>an t<\/span>o see b<\/span>act<\/span>eri<\/span>a,\u00a0<\/span>w<\/span>hich he o<\/span>bta<\/span>in<\/span>e<\/span>d fro<\/span>m hi<\/span>s <\/span>t<\/span>ee<\/span>th,\u00a0<\/span>a<\/span>nima<\/span>l<\/span>c<\/span>ul<\/span>ae [tiny beings in pond water]<\/span>, <\/span>c<\/span>irc<\/span>ul<\/span>at<\/span>in<\/span>g <\/span>bloo<\/span>d a<\/span>nd spe<\/span>rma<\/span>tozoa<\/span>. Sp<\/span>o<\/span>nt<\/span>a<\/span>neo<\/span>us ge<\/span>ne<\/span>ra<\/span>ti<\/span>o<\/span>n\u00a0th<\/span>eory was di<\/span>sp<\/span>roven <\/span>even b<\/span>ef<\/span>or<\/span>e P<\/span>ast<\/span>eur.”<\/span><\/p>\n

Members read the rest of Ev’s article in the pdf file for issue 22-2 on the free members-only DVD. Joining the PHSC is easy – see above or at right. Any questions, please email Lilianne at member@phsc.ca<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

Toronto. When I was a kid, an issue of Popular Mechanics magazine showed how the tiny lens of a pen-light 1.5v bulb could be used as a powerful (about 200x) microscope – just like one made by Leeuwenhoek in Delft, … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1944],"tags":[2017,398,512],"class_list":["post-30990","post","type-post","status-publish","format-standard","hentry","category-history","tag-article","tag-camera","tag-microscope"],"_links":{"self":[{"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/posts\/30990","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/comments?post=30990"}],"version-history":[{"count":3,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/posts\/30990\/revisions"}],"predecessor-version":[{"id":30994,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/posts\/30990\/revisions\/30994"}],"wp:attachment":[{"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/media?parent=30990"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/categories?post=30990"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/phsc.ca\/camera\/wp-json\/wp\/v2\/tags?post=30990"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}