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Godfrey Manning's photospectrographs

:: EPE Chat Zone ­:: ­Radio Bygones Message Board :: » EPE Forum Archives 2007-2009 » Archive through 17 June, 2008 » Godfrey Manning's photospectrographs « Previous Next »

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derek
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Posted on Monday, 26 May, 2008 - 04:00 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Greetings to all CZ'ers...my first post, but have been a reader since it was steam driven!..I am so impressed with the photospectrographs by Godfrey Manning (Readout in the June issue), that I can't not ask if Mr Manning could tell us how he achieved such excellent results?...however, I understand and respect that Mr Manning may not wish to make his research public, so can anyone offer a method of taking such pictures?...I know there are many talents out there!....Regards,....Derek
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john_becker
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Posted on Tuesday, 27 May, 2008 - 07:56 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Hi Derek, welcome!

I regret Godfrey is not a CZer.

J
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derek
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Posted on Tuesday, 27 May, 2008 - 09:01 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Thanks for the welcome John, and the info....time for a bit of research then!....Regards,...Derek
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boris
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Posted on Tuesday, 27 May, 2008 - 11:14 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

http://en.wikipedia.org/wiki/Spectrometer
Two cannibals are eating a clown.
One says “Does this taste funny to you?”.
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derek
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Posted on Friday, 30 May, 2008 - 08:37 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Many thanks boris
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john_becker
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Posted on Sunday, 01 June, 2008 - 12:57 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

Derek, I've spoken with Godfrey, who replied -

"The spectroscope is a basic prismatic device sold for educational purposes by Rapid Electronics (their order code 06-6560). The trouble is, it's meant to be looked down by eye at close quarters. I tried a so-called
T-mount that enables a camera body to mount to a microscope, the eyepiece
then projecting the image onto the focal plane of the camera. Didn't work.
So now I use a standard lens at close-focus extended by a macro tube, the
T-mount goes on the filter ring of the lens (with appropriate adapters) and
supports the spectroscope - just. It's a bit wobbly. Great care needed, not
something I want to do too often, the plastic spectroscope has to physically
rest against the lens - haven't scratched it so far. Some photographic
expert out there is bound to have a better idea as to how to accomplish this!"

Hope that helps

J
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derek
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Posted on Monday, 02 June, 2008 - 12:15 pm:   Edit Post Delete Post Print Post    Move Post (Moderator/Admin Only)

John - thank you so much for taking the time & trouble to get this information - it is the photography aspect that I am most interested in, and this helps a lot. Please pass on my thanks to Godfrey Manning when you next contact him....truly, people on this site are the tops!....Regards,....Derek

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