Table 1: The scalelengths of the galaxies from the Hubble Distance Scale Key Project. Stellar scalelengths from Macri et al. (2005) and dust scalelengths from fitted to the points in Holwerda et al. (2005b).

Galaxy	(light)	err	(dust)	err	R25
	arcmin		arcmin		arcmin
NGC 925	0.588	0.042			10.47
NGC 1365	0.499	0.012			11.22
NGC 1425	0.292	0.002	10	17	5.75
NGC 2541	0.341	0.023	9	5	6.31
NGC 2841	0.358	0.006	-12		8.13
NGC 3198	0.290	0.015	3.5		8.51
NGC 3319	0.323	0.046	6.5	2.0	6.17
NGC 3351	0.391	0.033	-14.1	4.0	7.41
NGC 3621	0.410	0.029			12.3
NGC 3627	0.450	0.011			9.12
NGC 4414	0.258	0.032	6	17	3.63
NGC 4535	0.360	0.014	8.4	2.0	6.17
NGC 4536	0.305	0.007			7.59
NGC 4548	0.240	0.010	9.1	4.8	5.37
NGC 4639	0.150	0.009	1.1	0.4	2.75
NGC 4725	0.562	0.008	9.8		10.72
NGC 7331	0.509	0.006	15		10.47