Archived posting to the Leica Users Group, 2002/04/08
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]- --- Dan Cardish <dcardish@sympatico.ca> wrote: > This is the information I'm looking for. In the past > whenever I've used > colour negatives films with speeds greater than 400, I've > always found that > the rated speeds were always an overestimate. > > But you find that NPZ can really be rated at the > "official" rating? > > Dan C. - ------------------------------------------------------------ Before blindly accepting someone else's rating, please consider the variables involved. 1. Every camera is slightly different. a. Shutter speed variances b. meter calibration variances c. lens aperture variances ( a 1/3 stop error is considered "normal" and acceptable ) 2. Every photographer composes and meters a little differently. So my suggestion is start with the manufacturer's rating and then experiment with future rolls until you find the value you think is correct for your work. __________________________________________________ Do You Yahoo!? Yahoo! Tax Center - online filing with TurboTax http://taxes.yahoo.com/ - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html