I have long admired here the seascapes made with long exposures to get the blurred moving water effect. I specialize in seascapes, but have never tried this. I bought a very "cheapy" 77mm multi coated ND Fader filter on ebay. It is cool, as it has marked increments from almost clear (probably one stop) to almost opaque. I assume shutter speeds around 5 to 10 seconds will be needed. I will be using a Pentax 645D, & mirror lock up. In my film days I did some long night exposures, and compensated for film reciprocity failue, but have never made digital exposures longer than around 1 second. Is there anything I need to know (noise, reciprocity, etc)? Any special processing from RAW? I will be using ISO 100 and f16 to 22 (I am willing to accept difraction lens issues).
Thanks in advance. If I get something worth keeping, I will post here.
Dave G
Thanks in advance. If I get something worth keeping, I will post here.
Dave G