Filter wheel has slots for 4 filters
| Filter | Central  (A) | Width (A) | Thickness (mm) |
Focus Offset (mm from r') | Domeflats * | Transmission Text File |
|---|---|---|---|---|---|---|
| r' | 6255 | 1470 | 3.05 | - | 5 | r'.txt |
| i' | 7680 | 1540 | 3.05 | - | 3 | i'.txt |
| z' | ~9000 | ~1800 (w/qe) | 3.05 | - | 5 | z'.txt |
| g' | 4660 | 1400 | 8.02 | +1.5 | 40 | g'.txt |
| u' | 3540 | 590 | 8.38 | +1.6 | 120 (HIGHLAMP) | u'.txt |
| Rs | 6930 | 1220 | 10.26 | +2.0 | 8 | Rs.txt |
| Is | 8190 | 1670 | 10.26 | +2.0 | 5 | Is.txt |
| B-bess | 4400 | 1000 | 7.0 | +1.3 | 2 (HIGHLAMP) | B.txt |
| V-bess | 5500 | 900 | 7.0 | +1.3 | 40 | V.txt |
| R-bess | 6300 | 1200 | 7.0 | +1.3 | 10 | R.txt |
| I-bess | 9000 | 3000 | 7.0 | +1.3 | 4 | I.txt |
| Broad-RI | 7670 | 2940 | 6.0 | RI.txt | ||
| H-alpha | 6570 | 100 | 11.68 | +2.8 | 120 | see plots below |
| S-II | 6730 | 90 | 11.68 | +2.8 | 120 | see plots below |
| 6610/100 | 6610 | 100 | 7.06 | +1.3 | 120 | see plots below |
| 6650/100 | 6650 | 100 | 7.06 | +1.3 | 120 | see plots below |
| 6700/100 | 6700 | 100 | 6.93 | +1.3 | 120 | see plots below |
| 3990 | 3990 | ? | 7.67 | +1.4 | 100(highlamp) | not yet on record |
| 4010/90 | 4010 | 90 | 12.19 | +2.9? | not yet on record | |
| 5200/70 | 5200 | 70 | 4.90 | ? | not yet on record | |
| 5085/70 | 5085 | 70 | 5.13 | ? | not yet on record |
* Seconds to 10,000 DN(unbinned)
Figure: Sloan filters convolved with ccd quantum efficiency
u'.txt g'.txt r'.txt i'.txt z'.txt
Rs transmission curve (without Q.E.) Rs.txt
Is transmission curve (without Q.E.) Is.txt
Figure: Newest (2006) LFC Bessell and custom RI filters
B-Bessell.txt
V-Bessell.txt
R-Bessell.txt
I-Bessell.txt
RI-Mike Brown.txt
Rs transmission curve (without Q.E.)
Is transmission curve (without Q.E.)
New (Nov. 2007) Narrow Band Filters, Courtesy of Karl Stapelfeldt.
H-alpha transmission curve (without Q.E.)
S-II transmission curve (without Q.E.)