curtis_lowe Posted August 13, 2008 Share Posted August 13, 2008 I know both the Efke & Rollei films extend to 820nm but does any body know what sensitivity they peak at? Link to comment Share on other sites More sharing options...
wolf_rainer_schmalfuss Posted August 13, 2008 Share Posted August 13, 2008 Hi Curtis, very simply for ROLLEI films, if you going to download the data sheets under: www.mahn.net For the Photokina (Sept. 22 - 28th) there will be new interesting ROLLEI film, paper and chemistry in the pipline. Watch for the press releases. Cheers Link to comment Share on other sites More sharing options...
Fotohuis RoVo Posted August 13, 2008 Share Posted August 13, 2008 Rollei 820/400 730-740nm as you can see on the data sheet. Efke IR820 a bit higher. Link to comment Share on other sites More sharing options...
jason_mekeel2 Posted August 14, 2008 Share Posted August 14, 2008 This is Rollei with a 750nm filter. It took 4 whole seconds, at F4, to get a very thin negative.<div></div> Link to comment Share on other sites More sharing options...
Fotohuis RoVo Posted August 14, 2008 Share Posted August 14, 2008 The film is going down fast in sensitivity over 750nm, one of the reasons a 715nm filter or 720nm filter is the optimum. M645 pro, RG715 (Heliopan), iso 12, 1/30S f=5.6 Sekor 3,5/150mm Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now