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| WFC3 Instrument Handbook |
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Washington C filter.Figure A.34: Integrated system throughput for F390W.Figure A.35: Point source S/N vs. V+ABν for the F390W filter, assuming high sky backgrounds and a 5×5 pixel aperture.Figure A.36: Extended source S/N vs. V+ABν for the F390W filter, assuming high sky backgrounds and a source uniformly filling a 1 arcsec2 aperture.