Product is special order only; please call or e-mail for approximate delivery time. A 20% nonrefundable deposit is required when ordering.
This 60mm aperture H-alpha filter can be used with virtually any telescope having a 60mm or greater aperture – but is designed to work best with telescopes having a focal length of under 3000mm . . .
Product is special order only; please call or e-mail for approximate delivery time. A 20% nonrefundable deposit is required when ordering.
This 90mm aperture H-alpha filter can be used with virtually any telescope having a 90mm or greater aperture – but is designed to work best with telescopes having a focal length of under 1000mm, particularly fast focal ratio refractors . . .
Product is special order only; please call or e-mail for approximate delivery time. A 20% nonrefundable deposit is required when ordering.
This 90mm aperture H-alpha filter can be used with virtually any telescope having a 90mm or greater aperture – but is designed to work best with telescopes having a focal length of 1000mm to 1500mm, particularly with refractors . . .
Product is special order only; please call or e-mail for approximate delivery time. A 20% nonrefundable deposit is required when ordering.
This 90mm aperture H-alpha filter can be used with virtually any telescope – but it will work best with telescopes having a focal length of 1500mm to 3000mm, particularly with long focal ratio refractors . . .
Product is special order only; please call or e-mail for approximate delivery time. A 20% nonrefundable deposit is required when ordering.
The T-Max 40 mechanical passband tuning mechanism (standard with the current SolarMax 40 H-alpha filters, but optional with older SolarMax 40 units) markedly expands the capabilities of your SolarMax 40 filter.
Some events on the Sun – notably active flares and coronal mass ejections (CMEs) – are extremely fast moving. If such features occur on the disc of the Sun, rather than on the limb, thei . . .
Product is special order only; please call or e-mail for approximate delivery time. A 20% nonrefundable deposit is required when ordering.
The T-Max 60 mechanical passband tuning mechanism (standard with the current SolarMax 60 H-alpha filters, but optional with older SolarMax 60 units) markedly expands the capabilities of your SolarMax 60 filter.
Some events on the Sun – notably active flares and coronal mass ejections (CMEs) – are extremely fast moving. If such features occur on the disc of the Sun, rather than on the limb, thei . . .
Product is special order only; please call or e-mail for approximate delivery time. A 20% nonrefundable deposit is required when ordering.
The T-Max 90 mechanical passband tuning mechanism (standard with the current SolarMax 90 H-alpha filters, but optional with older SolarMax 90 units) markedly expands the capabilities of your SolarMax 90 filter.
Some events on the Sun – notably active flares and coronal mass ejections (CMEs) – are extremely fast moving. If such features occur on the disc of the Sun, rather than on the limb, thei . . .
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