dlruckus schreef: > Hi Ernst. What a great effort you've put into this. Thank you. > Just a quick question if I may. I caught your post relating to the Teflon rolls on the other group and I wondered if you have curves for them using your Spectrolino/spectroscan(?) available as well as those from the i1 that you show in the posted data here. Do you think that the new spectro is less sensitive at the 400nm end of the scale or does it show similar results as your other instruments? > > Your work is going to be very useful to all of us. > Thanks again, both to you and to your son. > Regards, > Duane It all started with a discussion some time ago on this forum about the different white readings of Canson Rag Photographique. I didn't trust the Spectrocam anymore and it is an old one meanwhile. So I got the new Eye ! Basic and did the paper measurements again. Meanwhile I have seen lots of discussions on Spectro- Colorimeter measurements here, on DPreview forums etc and I think the deviations of the Spectrocam were not that bad either. I plan to add its readings of Teflon on another page than the paper white page to reduce confusion. The Spectrocam still has some nice features, the flash light source allows faster sampling than the Eye 1, if I pull it over a paper it will take up to 30 samplings per patch if I recall it correctly and give an average result. The light source is closer to daylight. It will read a slightly wider spectrum. It is no longer available in the market so this is not so relevant anymore. -- Met vriendelijke groeten, Ernst Try: http://tech.groups.yahoo.com/group/Wide_Inkjet_Printers/ | Dinkla Grafische Techniek | | www.pigment-print.com | | ( unvollendet ) |
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Re: [Digital BW] Re: Paper white spectral curves
2010-05-13 by Ernst Dinkla
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