Just uploaded our “Technical examination services for stamps” guide.
Using our onsite, mobile, non-invasive and non-destructive methods to evaluate historical prints. Ask for our art examination service or participate to our Training programs to learn these methods and set up your own laboratory.
Just published the CHSOS Infrared Photography Lenses Database. Anybody is welcomed to ship their lenses to be tested for infrared photography and be added to the database. Also everybody with a Nikon DSLR camera modified for Infrared is welcomed to contribute to this database by doing a similar test and providing the photos to be…
I’m sharing in this post the Technical Photography images of my Historical Pigments swatches collection painted with gum arabic. I used a Nikon D800 36 MP modified for UV-VIS-IR and the set of filters for multispectral imaging described here. All the images are shot RAW and then edited in Camera RAW. VIS (Visible). Be sure…
This post compares an InGaAs camera – used for Infrared Reflectography (IRR) with a Digital camera modified for Infrared photography (IR). An InGaAs camera is your choice when it comes to imaging underdrawings. Though, the advantages of the InGaAs camera, even if real, are limited. So, we should be aware of them before we decide…
I want share with you my list of best readings on Scientific and Technical Art Examination. Friends keep asking me for suggested readings…so, here you are! This is not comprehensive, of course, but, I would say, a good starting point. I don’t mention more technical readings on specific topics, such as pigments identification and analytic…
Just published Infrared Technical Photography for Art Examination. A. Cosentino “Infrared Technical Photography for Art Examination” e-Preservation Science, 13, 1-6, 2016. This paper discusses technical photographic methods based on the extended infrared sensitivity of a digital camera modified with the removal of the in-built hot mirror filter on the CCD or CMOS sensor, which in…
I had a Fujifilm S5 Pro that I used for multispectral imaging back in Brooklyn. This camera was manufactured specifically for UV-IR forensic photography. I sold it to switch to a Nikon D800. The camera was great, I sold it just because I needed a higher pixel count (I went from 12MP to 36MP) and there were…
