photography_filters: Indexing of photography filters

In aphalo/photobiologyFilters: Spectral Transmittance and Spectral Reflectance Data

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

aphalo/photobiologyFilters documentation built on Feb. 28, 2024, 12:05 a.m.