| photography_filters {photobiologyFilters} | R Documentation |
Indexing of photography filters
Description
Vectors of names of member objects with spectral data for filters intended to be used on camera lenses, grouped by supplier. Suppliers: B+W, Formatt-Hitech (Hitech, Firecrest), Fotga, Haida, Heliopan, Hoya, Ken & Faith Concept, KinghtX, KolariVision, Purshee, Rocolax, Tangsinuo, Tiffen, UVRoptics, Zeiss, and Zomei.
Usage
photography_filters
hoya_filters
firecrest_filters
haida_filters
zomei_filters
fake_unbranded_filters
baader_filters
uvroptics_filters
tiffen_filters
bw_filters
heliopan_filters
zeiss_filters
kenko_filters
rocolax_filters
kolarivision_filters
fotga_filters
tangsinuo_filters
purshee_filters
knightx_filters
kenfaith_filters
nisi_filters
Format
A vector of character strings.
An object of class character of length 12.
An object of class character of length 14.
An object of class character of length 2.
An object of class character of length 11.
An object of class character of length 2.
An object of class character of length 1.
An object of class character of length 1.
An object of class character of length 3.
An object of class character of length 1.
An object of class character of length 10.
An object of class character of length 1.
An object of class character of length 1.
An object of class character of length 3.
An object of class character of length 1.
An object of class character of length 2.
An object of class character of length 20.
An object of class character of length 2.
An object of class character of length 4.
An object of class character of length 1.
An object of class character of length 1.
Warning!
Data are to be used as "reference values only" as actual transmittance may change in time and with production batch or glass melt. In some cases spectra for multiple filters of the same brand and type are included and show such variation. In other words, these spectra are measured in individual filters, other filters of the same type and brand will almost surely differ to some extent in their spectra.
The dynamic range of the data depends on the instrument used for the measurements. Most of the photography filters have been measured with an Agilent 8453 array spectrophotometer. The noise floor is at approximately 3.5 to 4.0 absorbance units within the range of wavelengths included in the data. Some small apparent "leaks" maybe only noise. A blank and a dark measurement obtained using this instrument are also included in the data set for comparison.
The variables are as follows:
w.length (nm)
Tfr (fraction)
Supplier's web sites, if known
https://www.baader-planetarium.com/en/, https://www.formatt-hitech.com/, https://www.fotga.com/, https://www.haidaphoto.com/en/, http://www.heliopan.de/, https://hoyafilter.com/, https://kenkoglobal.com/, https://www.kentfaith.com/, https://knightx-photography.aliexpress.com/store/924165, https://kolarivision.com/, https://purshee.aliexpress.com/store/1996249, https://schneiderkreuznach.com/en/photo-optics/b-w-filters/filtertypes, https://tangsinuo.aliexpress.com/store/4314008, https://tiffen.com/, https://www.uvroptics.com/, https://www.zomei.com/.
Note
Data measured with an Agilent 8453 spectrophotometer (based on diode array).
Idependent measurement of a single sample, not a specification.
Examples
photography_filters