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General Remarks

The filters marked with an asterisk in Table  B have been scanned in October, 1994. No lightleaks were found, except for the [OI] tex2html_wrap_inline6385 6306 filter (see Fig. 18). We plan to scan the rest of the interference filters in the first half of 1995. Many filters are already old, which means in particular that their edges are not as smooth as they could be. To prevent stray light coming in through the edges, especially on INT-PF, some blocking off of the edges before observing is advisable. Finally, remember that what you measure is the transmission of the filter convolved with the CCD response (see Fig  6).

Table  17 gives the standard colour terms for the TEK2 chip at prime focus; this information can also be found in the information browsers at La Palma and Cambridge and in the LPINFO system on the Cambridge VAX GXVG. See also Section 4.8.

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Table 17: Colour terms for the TEK2 chip at Prime Focus. The Colour terms are given in the sense of (Observed - Landolt).

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Figure 15: RGO Glass filters

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Figure 16: Kitt Peak/Harris filters

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Figure 17: Harris/Narrow Band filters

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Figure 18: Narrow Band filters

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Figure 18: Narrow Band filters

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Figure 19: Redshifted H tex2html_wrap_inline5501 Filters

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Figure 19: Redshifted H tex2html_wrap_inline5501 Filters

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Figure 19: Redshifted H tex2html_wrap_inline5501 Filters



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Wed Sep 17 12:36:20 BST 1997