• It is vitally important to avoid looking directly at the sun.  To avoid any potential damage to eyes, use live view or an electronic viewfinder to both set up your composition and to watch the progress of the eclipse. (The camera should be switched off or live view disabled when not viewing or taking photographs, as damage to the sensor is possible even with a filter in place.)
• Switch your lens to manual focus and set it to infinity.  This will prevent the lens from hunting once the filter is in place.
• Slide the Solar Eclipse Filter into the holder.  To avoid light leaks, the filter must be placed into the slot closest to the lens, with the foam seal facing the camera's backplate.
• Your starting exposure should be approximately 1/800sec at f/8 (ISO 800).  Initially test the filter in clear conditions and bracket to find which exposure gives the best results.
• Use the Solar Eclipse Filter during the partial phases of the eclipse, but remove it during totality, otherwise your images will be underexposed.
• After totality, the filter can be replaced to continue photographing as the moon moves clear of the sun.
• As the Solar Eclipse Filter has been designed to filter out some of the sun's harmful infrared rays, it is very blue in colour.  This cast can be corrected in postproduction, or images converted to black and white.

LEE Filters