Antlia 3nm Narrowband H-Alpha (Ha) Pro Filters (H-ALPHA-3NM-PRO)

Antlia 3nm Narrowband H-Alpha (Ha) Pro Filters (H-ALPHA-3NM-PRO)Antlia H alpha Pro narrowband filter optimizes the FWHM (full width half maximum) to 3nm bandpass. As the bandwidth becomes narrower, the 3nm Pro narrowband filters enhance contrast of emission targets by lowering the unwanted background signal. Antlia H alpha 3nm Pro filters are designed to deliver 88% transmission at the 656. 3nm line which provides you with the maximum signal and well defined nebulae structures. Conventional broader narrowband

this Altitude Gear and Clutch upgrade kit can be used to replace the altitude gear/clutch of an iOptron MiniTower Pro/MiniTower II

Magnesium is a highly magnetised chemical on the sun

which is the youngest among the FRA family well-known to our customers

optimum carrying comfort

and the data is often lost

Great for educators

Askar V not only has an elegant appearance and high-quality mechanical design

So it's going to be very easy for observers to see and the exposures will be very short

5 INNER CONNECTION (LENS-SIDED) Thread

25% reflection

The larger objectives add weight and bias the center of balance forward which could lead to user fatigue and possible hand-shake

9x Corrector - insertable or thread-on Thread-on Corrector thread size M56x1 female/M48 male Corrector back focus 55mm Corrector illuminated field 30mm Includes one ED element Yes F/Ratio with reducer installed 5