Aperture	Shutter (secs)	Shutter equiv	Log2 (Shutter)	Files and Crop (difference frame)	Min	Max	Mean	St Dev	Noise (StDev/√2)	Mean DN	Mean DN-ofs	log2     (DN-ofs)	S/N unadjusted	S/N dB
5.66	0.0250000	0.025000000	-5.322	_DSC0268_g1.fit[972:1171, 1323:1522]-_DSC0267_g1.fit[972:1171, 1323:1522]	-5	4	0.0	1.299	0.918	15897.6	15897.6	14.0	17310.7	42.38
5.66	0.0200000	0.020000000	-5.644	_DSC0270_g1.fit[972:1171, 1323:1522]-_DSC0269_g1.fit[972:1171, 1323:1522]	-7	7	0.0	1.683	1.190	15903.0	15903.0	14.0	13361.3	41.26
5.66	0.0166667	0.016666667	-5.907	_DSC0272_g1.fit[972:1171, 1323:1522]-_DSC0271_g1.fit[972:1171, 1323:1522]	-7	6	-0.4	1.588	1.123	15912.4	15912.4	14.0	14169.5	41.51
5.66	0.0125000	0.012500000	-6.322	_DSC0274_g1.fit[972:1171, 1323:1522]-_DSC0273_g1.fit[972:1171, 1323:1522]	-1034	966	-3.8	246.220	174.104	14858.9	14858.9	13.9	85.3	19.31
5.66	0.0100000	0.010000000	-6.644	_DSC0276_g1.fit[972:1171, 1323:1522]-_DSC0275_g1.fit[972:1171, 1323:1522]	-1027	807	-149.2	218.008	154.155	11907.7	11907.7	13.5	77.2	18.88
5.66	0.0050000	0.005000000	-7.644	_DSC0278_g1.fit[972:1171, 1323:1522]-_DSC0277_g1.fit[972:1171, 1323:1522]	-912	330	-279.1	151.340	107.014	5863.1	5863.1	12.5	54.8	17.39
5.66	0.0025000	0.002500000	-8.644	_DSC0280_g1.fit[972:1171, 1323:1522]-_DSC0279_g1.fit[972:1171, 1323:1522]	-490	433	-11.6	111.236	78.656	3022.0	3022.0	11.6	38.4	15.85
5.66	0.0012500	0.001250000	-9.644	_DSC0282_g1.fit[972:1171, 1323:1522]-_DSC0281_g1.fit[972:1171, 1323:1522]	-216	584	182.8	77.373	54.711	1346.3	1346.3	10.4	24.6	13.91
5.66	0.0006250	0.000625000	-10.644	_DSC0284_g1.fit[972:1171, 1323:1522]-_DSC0283_g1.fit[972:1171, 1323:1522]	-337	262	-12.9	57.306	40.521	761.6	761.6	9.6	18.8	12.74
5.66	0.0003125	0.000312500	-11.644	_DSC0286_g1.fit[972:1171, 1323:1522]-_DSC0285_g1.fit[972:1171, 1323:1522]	-286	339	-5.4	42.945	30.367	384.7	384.7	8.6	12.7	11.03
5.66	0.0001563	0.000156250	-12.644	_DSC0288_g1.fit[972:1171, 1323:1522]-_DSC0287_g1.fit[972:1171, 1323:1522]	-288	270	-13.1	34.208	24.188	213.4	213.4	7.7	8.8	9.46
5.66	0.0001250	0.000125000	-12.966	_DSC0290_g1.fit[972:1171, 1323:1522]-_DSC0289_g1.fit[972:1171, 1323:1522]	-203	258	19.2	31.804	22.489	158.2	158.2	7.3	7.0	8.47
11.31	0.0002500	0.000062500	-13.966	_DSC0292_g1.fit[972:1171, 1323:1522]-_DSC0291_g1.fit[972:1171, 1323:1522]	-206	205	1.4	24.861	17.579	72.2	72.2	6.2	4.1	6.14
11.31	0.0001250	0.000031250	-14.966	_DSC0294_g1.fit[972:1171, 1323:1522]-_DSC0293_g1.fit[972:1171, 1323:1522]	-182	165	4.8	21.500	15.203	39.2	39.2	5.3	2.6	4.12
16.00	0.0001250	0.000015625	-15.966	_DSC0296_g1.fit[972:1171, 1323:1522]-_DSC0295_g1.fit[972:1171, 1323:1522]	-172	151	-0.7	19.690	13.923	25.4	25.4	4.7	1.8	2.61