Gijs van Ginkel
Well-known member
We never measured in any binocular we have investigated transmission values of 97,5%, not in porros and not in roofs.
Gijs van Ginkel
Gijs van Ginkel
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Why is twilight transmission lower than daylight? (1 Viewer)
- Thread starter tenex
- Start date
elkcub
Silicon Valley, California
Hi Gijs,
Is there a way to obtain the numerical values for the transmission curves that you publish at the House of Outdoors? For example, 5 nm spacing in Excel format? Of course, I'd be happy to credit you/them as the data source.
Ed
Gijs van Ginkel
Well-known member
Ed, post 23,
Of course you can read the values form the curves in the old fashioned way, taking a ruler measure the value and use a calculator. Works good, but takes a little time. In the meantime I will approach my colleague who has all the digital files and who is on vacation right now, so patience is a wonderful thing...It will probably somewhere in August that he is back....And I promise to think about your request while camping myself on one of the most beautiful islands in this universe. Are you also the Ed who asked for a reprint of one of my oxygen radical studies? If so I can try to extract that also from my own files (I do not have it in a digital form, but it can be copied).
Gijs van Ginkel
Of course you can read the values form the curves in the old fashioned way, taking a ruler measure the value and use a calculator. Works good, but takes a little time. In the meantime I will approach my colleague who has all the digital files and who is on vacation right now, so patience is a wonderful thing...It will probably somewhere in August that he is back....And I promise to think about your request while camping myself on one of the most beautiful islands in this universe. Are you also the Ed who asked for a reprint of one of my oxygen radical studies? If so I can try to extract that also from my own files (I do not have it in a digital form, but it can be copied).
Gijs van Ginkel
Gijs van Ginkel
Well-known member
Ed, post 25,
Which spectra are you particularly interested in?
Gijs van Ginkel
Which spectra are you particularly interested in?
Gijs van Ginkel
Edmund
Gijs's transmission reports were not produced with publication via Birdforum in mind so your request may not be possible.
Lee
elkcub
Silicon Valley, California
Gijs,
At this point, I'd be most interested in a few (maybe three) spectra that are decidedly non-flat, like the Meopta Meostar shown below, which I borrowed from an earlier post. The more the shapes differ the better.
If possible, I'd also like to know your assessment of the "Day/Night" values and color bias is they are available.
Thanks,
Ed
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Gijs van Ginkel
Well-known member
Ed, post 29,
We will select some spectra, which fulfill your wishes, but as I wrote: my colleague is on vacation riht now for 4-5 weeks and he guards the spectra in his backup system and in that time I can not reach them. How can I send them to you when he is back: ordinary mail, e-mail ????
Gijs van Ginkel
We will select some spectra, which fulfill your wishes, but as I wrote: my colleague is on vacation riht now for 4-5 weeks and he guards the spectra in his backup system and in that time I can not reach them. How can I send them to you when he is back: ordinary mail, e-mail ????
Gijs van Ginkel
