next up previous contents
Next: Calculating of Focus Up: Imaging filters Previous: Specification of the

General Remarks

The filters marked with an asterix in Tables gif and gif have been scanned in October, 1994. No lightleaks were found, except for the [OI] 6306 filter. We plan to scan the rest of the interference filters in the first half of 1995, and the scans will be made available as they are done. Many filters are already old, which means that especially their edges are not as smooth as they could possibly be. To prevent stray light coming in through the edges, especially on INT-PF, some blocking off of the edges before observing is advisable.

Tue Aug 15 16:42:46 BST 1995