A7III Spectral Sensitivity Curves?

Started 3 weeks ago | Discussions thread
Xasan Contributing Member • Posts: 747
Re: A7rII Spectral Sensitivity Curves
1

Jack Hogan wrote:

NateW wrote:

Thanks Jack! I had come across some data for the NEX cameras, but not with the individual RGB curves.

Wonder how close the newer full frame cameras are? Seems like maybe they changed up the sensor stack filters after the original A7 to avoid the corner color issues cause by the hot filter, but I’m not sure.

A secret pen pal sent me these SSFs for an A7rII. Says: "I use the following with more or less decent results":

They look fairly similar to the earlier ones. He was kind enough to include relative values, copied below.

Jack

{
"camera_name": "Sony ILCE-7RM2",
"ssf_bands": [380,390,400,410,420,430,440,450,460,470,480,490,500,510,520,530,540,550,560,570,580,590,600,610,620,630,640,650,660,670,680,690,700,710,720,730],
"red_ssf": [0,0,0.00700387433,0.01077820342,0.01815979114,0.02012348164,0.01565629737,0.01404169748,0.01407123435,0.01822175416,0.022860118,0.02443097759,0.02982797294,0.04248003312,0.06160887837,0.08125166468,0.07441004581,0.07326246923,0.08764831914,0.1530269215,0.3298476789,0.4908234631,0.4906934829,0.4431903934,0.3756572426,0.32960244,0.2655814136,0.2081655044,0.1452284138,0.09098955241,0.03977587833,0.01333219701,0.005448699163,0.003364003765,0.002176048766,0],
"green_ssf": [0,0,0.01159239969,0.01991649756,0.04107354051,0.06515079649,0.08679315112,0.113212929,0.1560372625,0.2665007035,0.4036001771,0.4830990634,0.6422759457,0.8169646466,0.918987844,1,0.9361831581,0.8975832301,0.7554053156,0.6452534302,0.4866233549,0.3510852707,0.2022501827,0.115297427,0.06568183515,0.04772055761,0.03507253208,0.02515567182,0.01767051918,0.01350153184,0.007862531278,0.003961504992,0.001891808472,0.001229503656,0.001015290297,0],
"blue_ssf": [0,0,0.04875386305,0.1250566318,0.3507247249,0.5973280853,0.6854071804,0.7922351254,0.8282285453,0.8175585266,0.7675087888,0.6382718088,0.486864858,0.3333306217,0.190268705,0.1169469107,0.07573855948,0.05140486245,0.03203002089,0.02472937531,0.02036022945,0.01705092047,0.01231771418,0.009645645908,0.008429851671,0.008214243604,0.007349157319,0.007836373924,0.006396352323,0.004911465654,0.002239315319,0.0006778101828,0.0003896377625,0.0003224571766,0.0002895082375,0]
}

Data doesn't pass white balance test, excite the table with daylight or incandescent spectra and the coefficients are nothing like presets.

Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow