Check the listing for details. Dwarf Mini Optical Accessory Kit. Color: Black, Condition: New, Made in United Kingdom. Listed at 23.29 USD. A magnetic threaded base which also keeps the view from the wide angle lens unobstructed (when not using the dew shield, view is partially obstructed when the dew shield is fitted). This allows for the fitting of 3rd party 1.25" astro filters and also the attachment of a threaded and flocked dew shield. The DwarfLab mini as part of it's calibration process for tracking the sun fully closes (knocking the filter holder off) before opening the scope again (at which point you must attach the filter holder again, before the main objective lens aligns with the sun. Currenty we've been experiencing and extrordinary amount of cloud (no clear sky in over 2 months) which means we haven't been able to take any shots with the Mini as yet. As soon as we get a clear night we'll get some example shots up.