Hi everyone, I am looking for a red filter for both infrared photography (with Kodak HIE) and general Black and White (mostly landscapes.) I am considering either a Red 25 or a Deep Red 29; most importantly, I want to make sure the filter sufficiently enhances the infrared effects of Kodak HIE--blackening the skies and whitening foliage, etc. I have read that some infrared photographers use a Red 25, but others recommend a Deep Red 29. Also, I plan to use the filter for dramatic landscapes with "popping" white clouds and dark grey or black skies. My question here is: will the Deep Red 29 be too exaggerated for this purpose? I know that the Red 25 has a significant impact on skies and green foliage--this is precisely the effect I want. How different are the two filters, really? Would a Deep Red filter be the best choice for both infrared photography and contrasty black and white landscapes, or should I stick with a Red #25? Thanks for your help, Francis.