----------------------------------- nobody 16 Mar 2017 18:53 ----------------------------------- Filtrul (folia) de la Baader pentru uz fotografic este ND3.8, adica 1/6310, lasa sa treaca de 16 ori mai multa lumina fata de cel ND5. La o adica, nu e recomandata nici pentru uz foto la raporturi focale mici. AstroSolar ™ Photofilm: We offer two densities of AstroSolar™, since passionate Solar photographers have always critizised that the visual density of D=5 would be too dark for eyepiece projection work. Accordingly we manufacture brighter "AstroSolar™ Photo Film" with density D= 3.8, to provide short exposure times when using eyepiece projection. AstroSolar™ OD=3.8 PhotoFilm offers short exposure times up to 1/5000 sec. AstroSolar™ PhotoFilm is not intended for visual observation. PhotoFilm is only for use with telescopes for high magnification photographic work. Do not use it for producing solar eclipse viewers, do not mount it onto DSLR camera lenses. http://www.baader-planetarium.de/com/sofifolie/details_e.htm