6
Manual: Cool-Ceramic Safety Herschel Prism Mark II
Technical data and most important optional adapters
Telescope side connection options (included as standard)
• 2" (50.8 mm) nose piece with safety kerfs and M48 filter thread
• Ring dove tail S58 x 3.7 mm, for connection e.g. to Zeiss M8 and other Baader
connection standards with optional adapters
Additional filters (included as standard)
• 2" neutral density filter density 3.0 (1:1000, transmission 0.1%)
# 2458332
• Baader 7.5 nm Solar Continuum Filter (SCT) 2" (540 nm)
# 2961581
Both filters are pre-mounted in the rotatable filter mount of the Herschel prism.
The photographic version of the Herschel prism additionally contains the three filters
• Neutral density filter (grey filter) 2", ND 0.6 (T=25%)
# 2458321
• Neutral density filter (grey filter) 2", ND 0.9 (T=12,5%)
# 2458322
• Neutral density filter (grey filter) 2", ND 1.8 (T=1,5%)
# 2458331
These filters are also available separately.
Connection options on the eyepiece side (included as standard)
• 2" (50.8 mm) ClickLock
®
clamp with brass clamping ring, optical length 30 mm
• S58 ring dovetail, exactly the same as on the Diamond Steeltrack
®
focusers
Technical data
Optical length: As supplied with ClickLock
®
eyepiece clamp:
115 mm without filter
With two filters of 2 mm glass thickness (ND 3, SCT): 112.4 mm
With optional SteelTrack M48/M68/T-2 adapter
instead of ClickLock
®
eyepiece clamp: 85-86 mm without filter
Weight:
650g single unit, ~1,6 kg total weight incl. case
Housing:
cast metall, milled
matt black anodised and pearl white textured finish
Three-point adjustment system
Recommended accessories
• 2" polarising filter, single
# 2408342
, for stepless brightness control
• S58 Steeltrack adapters allow the 2" ClickLock
®
eyepiece clamp to be replaced
with one of the following short length adapters:
• Diamond Steeltrack® T-2 Adapter
# 2957202
, optical length 2 mm.
• Diamond Steeltrack® M48 adapter
# 2957204
, optical length 1 mm
• Diamond Steeltrack® M68i adapter
# 2957207
, optical length 2 mm
• Reducer to 1¼", e.g. Baader 2" to 1¼" ClickLock
®
reducer
# 2956214