</span><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (lee @ Jan 10 2003, 03:07 PM)</td></tr><tr><td id='QUOTE'> I use gels and have for several years placed the filter in the rear of the lens and I see no difference in the the sharpness or any loss of contrast. You should try it and see if it works for you and your equipment.
lee\c </td></tr></table><span class='postcolor'>
Lee, if there is no apparent difference, I would assume that means there is no advantage to using the filters behind the lens. For sharpness and contrast anyway. Since you go the extra step to put them behind the lens, what is the advantage from your experience? Also how do you attach the gels?