The ever changing solar disk presents itself in the PST with tunable views of prominences and surface detail previously unavailable at even 3 times the cost. Sub angstrom Ha systems have long been cost prohibitive for the amateur. Designs other than the Coronado are difficult to use because of temperature and f/ratio requirements. Not only does the PST have a bandpass of 1.0 angstrom but it is also thermally stable and requires no more time to operate than putting in a eyepiece and adjusting the focus. The PST represents the same technology and quality that goes into a SolarMax series telescope but with a few unique design characteristics that allow it to be offered for less than the price of some premium eyepieces. The PST will show prominences, active regions, filaments, as well as other surface details - at 1.0 angstrom it will not reveal as much surface detail as the SolarMax series telescopes and filters but it certainly doesn't disappoint.

Specifications:

• Aperture: 40mm
• Focal length: 400mm
• F/ratio: F/10
• Bandwidth: 1.0Å - 0.6Å
• Thermal Stability: 0.005
• A/C Blocking: Full blocking 10-5 from EUV to far IR.
• Zoom eyepiece 7-21mm 

The PST is made from milled aluminium, not plastic! It comes with a built in "Sol Ranger" finder for easy alignment and a re-usable box with dye-cut foam for safe storage. Optional accessories include a hard travel case, MALTA tabletop mount, CEMAX series eyepieces, and SolarMax40 filter for double stacking and narrowing the bandpass. Adding a SolarMax 40 requires the T-Max 40 for attaching the unit directly to the PST.