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Solar Observation > Solar Filters > Mounted glass filters > Lunt Solar Systems > Lunt Solar Systems Filters H-alpha LS50FHa/B1800d1
Product no.: 12689

Filters H-alpha LS50FHa/B1800d1

$ 4,000.00 incl. VAT, plus shipping costs
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Product description

BF blocking filter: The deflection optics with the eyepiece receiver also accommodate the blocking filter. This filter reduces the brightness of the solar image and is therefore a very important part of the solar telescope, and which must under no circumstances be removed! For purely visual observing, a small blocking filter is sufficient, but for photography a larger one should be selected.

The B1800 blocking filter is very well suited to visual solar observation but can also be utilised for solar photography using cameras with a small sensor chip or which use the APS-C format. For cameras with large sensors, a telescope with a larger blocking filter should be used so that the sensor will be illuminated. For solar photography, we generally recommend so-called planetary cameras which work smoothly with this blocking filter.

Because the LS50 has an estimated bandpass of <0.70 Angstroms it is capable of providing high contrast views of both surface and edge detail. Adding an additional etalon system will reduce the bandpass to ~<0.50 (dependant upon scope) allowing for higher resolution viewing and/or imaging.

Specifications

Capacity


Frame
lens filters
Free transmission (mm)
50
Half-value width
<0,75
Connection ( to eyepiece)
1,25"
Connector (at camera end)
T2
Connection (to the telescope)
1,25"
Connection
M90

Equipment


Transport cases
yes

General


Type
Solar Filters
Type of build
line filter

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*All prices include VAT plus shipping costs.

Lunt Solar Systems Filters H-alpha LS50FHa/B1800d1
Example of use
Lunt Solar Systems Filters H-alpha LS50FHa/B1800d1
Example

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