Skywatcher .77x Reducer Flattener for Esprit 120EDDesigned specifically for the Sky Watcher Esprit 120 ED Apo Refractor, the new three lens Focal Reducer Flattener has a reduction factor of 0. 77x. It comes with a standard adaptor with M48 thread edge and 55mm back focus for use with Sky Watcher's M48 Canon EOS (code 20237) and Nikon (code 20238) adaptor rings. After removing the adaptor, an M71x1 internal thread with maximum 75mm back focus is available for self made adaptor solutions. The Reducer

Strap:  2” wide hook & loop strap for attachment to tripod leg

25 CCD Narrowband 7nm Ha SII OIII Filter Set is used to create high contrast deep sky images of certain objects

With a cyclindrical case measuring 74mm in diameter and 130mm in length

• 9x50 finderscope to help accurately find objects

Its built-in wedge allows you to track long exposures

so successful deep-sky photography is also possible from close to the city

The simple condenser with rotating disc aperture adjusts the lower illumination for enhanced viewing

This literal shortcut gives a manufacturer the ability to reduce stock and easily produce filters on demand or to readily produce odd sizes

2 lens (depending on the thickness of the filter)

66mm(height)*66mm(length)*21mm(thickness)

The black anodized housing with orange highlights matches the eyepieces in the Celestron X-Cel LX line

sharp images with excellent color correction