The Astronomik OWB (Original White Balance) CCD
(EOS Clip) Type 2 filter shifts the complete spectrum of a converted Canon EOS DSLR so that it is not just exclusively usable for astro-photography, but can take great daytime photography shots as well even on auto exposure.
The filter is quick and easy to insert and remove.
Not suitable for a 60Da camera, but suitable for other modified cameras.
As new, in case, Only been inserted once for testing in a 60Da camera.
Cost $189, asking $80 ONO post free. Pay by PayPal. Money back filter condition warranty.
See Bintel:
http://tinyurl.com/aqmnaee
Please PM me for further contacts.