Bought new and never used it, in mint condition. This is a high quality original William Optics flattener III - fits into a 2-inch system / T-mount and shortens focal length a little, but improves outer field imaging enormously. Complete with original box and paperwork.
Backfocus is 56mm.
Manufacturers Description - EW Reducer/Field Flattener V. III, especially recommended for users of our Z70,Megrez 80,Megrez 90.The large 50mm clear aperture lens will reduce vignetting to almost nil. Simply loosen the set screws on the side and your adapter will rotate 360 deg. with a thumbscrew to lock it into place! The antireflection multi-coating on all optical surfaces will boost transmission and enhance your astro-imaging performance! But more importantly, your shots will show pinpoint stars and you will maximize the full potential of your apochromatic refractors. What you care most, your shots will show pinpoint stars and you will maximize to the full your apochromatic refractors' potential.</SPAN>
This will fit other scopes around the specified focal lengths.
PRICE $250 posted in Australia. PM me if you are interested.
