pardon me list for leaving all the stuff he wrote in replying - that's how I save things - I never empty my "sent" mailbox :)
Good info - of course I need to get some sort of filter immediately I simply cant keep a lens cap from getting lost... and even if the filter is next to useless it you can shoot in a hurry with it in place and it keeps the lens safe. ann Godfrey DiGiorgi wrote: > > On May 19, 2005, at 8:39 AM, Ann Sanfedele wrote: > > > Now I can.... but do they work the same way? that > > is have the same effect? > > > > A red filter on my darkside PRO 1 and camera set > > to BW acheive the > > same effect as a red filter on my lx? > > Approximately, yes, depending upon the sensor's spectral sensitivity. > > In general, to work B&W with a digital camera you get a lot more > control of the rendering by capturing in RGB color and then using image > processing software to mix channels down to B&W. You can then adjust > the RGB values to emulate the response of your favorite B&W films plus > all the Yellow, Orange, Green, Blue, etc traditional B&W filters. There > are also plug-ins available that have pre-canned such adjustments (and > film grain effects of popular emulsions) giving you a lot more > flexibility than the in-camera B&W capture option. > > The in-camera B&W capture option is generally doing the effective > equivalent of a Channel Mixer with 20% Red, 75% Green and 5% Blue > settings in most cameras I've played with that have one. > > > Without getting into to much technobabble - what > > about a polarizer? > > Polarizers work as polarizers always do. The effect might not be easily > visible as you rotate the filter on the Pro-1's EVF because the EVF is > somewhat low resolution ... I always found it easier with an EVF camera > to manage a polarizer the same way I did for rangefinder cameras: > rotate the filter looking through it with your eye, check the > orientation of an index mark, then fit it and place the index where it > ought to be. > > > UV filter? > > Digital sensors have very little to no UV sensitivity and white balance > adjustments take care of warming up the blue tint from photos taken > under open blue sky. A UV filter basically has no useful function on a > digital camera as a result ... The only useful function for this class > of filter (UV, Skylight 1a, etc) is for occasionally protecting the > front element of the lens when you're shooting in conditions of flying > debris or water, when best resolution and flare prevention are > secondary priorities. > > ND filters, both full and partial, remain useful. I use an 8 or 9 stop > ND filter occasionally for extended time exposure effects. I don't know > how much the ND function in the Pro-1 nets you. > > Godfrey
