240324 1NL82A22(.KTT/G): http://farbe.li.tu-berlin.de/fek2/fek2.htm or http://color.li.tu-berlin.de/fek2/fek2.htm

For this page, see fek2 in English, fgk2 in German.
For the previous similar page, see fek1 in English, fgk1 in German.
For the next similar page, see fek3 in English, fgk3 in German.

For the corresponding image page with 10 colour series, see feks in English, fgks in German.
For the previous image page, see fejs in English, fgjs in German.
For the next image page, see fels in English, fgls in German.

TUB-test chart fek2; Achromatic thresholds, 5 Lu & Lm on Y
thresholds delta_L (0,4s), contrast and lightness; experi-
mental data of Lingelbach and Richter with adaptation

Figure fek2l0n1: Output layout of page 1 of the file fek2l0np.pdf with the format A6, see
fek2l0n1. ps / txt / jpg / pdf
and the format A4 in the following tables.

One page, orientation A4L, Intended for pdf output, No linearization or transfer	One page, orientation A4L, Intended for ps output, No linearization or transfer
fek2l0np. ps / txt / pdf	fek2l0na. ps / txt / pdf

Two pictures of one page (left side)	Two pictures of one page (right side)
fek20-3n. ps / txt / pdf fek20-7n. ps / txt / pdf	fek21-3n. ps / txt / pdf fek21-7n. ps / txt / pdf