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OR?

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Unless I'm mistake, this is an essay based on the author's own research? — BillC talk 07:19, 1 January 2009 (UTC)[reply]

Yup. I say delete this page. C.anguschandler (talk) 22:10, 29 May 2009 (UTC)[reply]

The "recent" discovery notion is incorrect, since the Zeiss d/1730 formula has been known as standard fact for many decades, from before WWII (perhaps long before?). The article is correct that there are hundreds of Google hits about 1/1730 + "depth of field", but it is a huge jump to imagine this was a recent discovery or contribution by the named individuals. The d/1730 fact is good stuff to know, but its recent origin is wrong. 173.64.206.142 (talk) 19:58, 24 August 2009 (UTC)[reply]

I searched long and hard for sources, but the closest I could find was d/1500. Please share your sources with us, so we can fix it. Dicklyon (talk) 04:06, 25 August 2009 (UTC)[reply]

Well, I'm going to cut this page down to the bare essentials, and maybe it can be built back up from there with more citations, etc. C.anguschandler (talk) 05:35, 3 November 2009 (UTC)[reply]

Yes, that needed to be done. The article was my first attempt at a wikipedia article, several years ago, and it was full of my own OR that I had written for other purposes. I've added back material from sources, with minimal interpretation and properly cited, which makes for a much more concise and appropriately toned article. Dicklyon (talk) 16:47, 10 December 2009 (UTC)[reply]
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Cheers.—cyberbot IITalk to my owner:Online 04:18, 31 March 2016 (UTC)[reply]

LGTM. Dicklyon (talk) 04:35, 31 March 2016 (UTC)[reply]

Carl Zeiss "Camera Lens News" — new address

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http://blogs.zeiss.com/photo/de/?page_id=127

--212.197.169.127 (talk) 06:29, 23 March 2017 (UTC)[reply]