Distances and stellar population properties for 12 elliptical galaxies

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Table 2

Photometric calibration.

	m_z.p.,I	k_I	Targets	Landolt (1992) fields^a

Cal. #1, 7 April	25.80 ± 0.05	0.02 ± 0.01	ESO 322-G101, NGC 4645, NGC 4696, NGC 5761, NGC 6483	SA 110 (7); PG 0942-029 (5); PG 1657+078 (4)
Cal. #2, 12 May	25.77 ± 0.11	0.01 ± 0.05	NGC 6502, NGC 6987, NGC 7117, NGC 7118	Mark_A (4)
Cal. #3, 21 June	25.76 ± 0.02	0.06 ± 0.03	NGC 4616, NGC 5090, NGC 5193	SA 110 (7); SA 92 (5); PG 2213-006 (4)

Notes.

^(a)

The number of photometric standards in each frame is shown in parenthesis.

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