Shoot a roll of Kodachrome shooting at 64, being very careful to expose it right on. Try to avoid bright sunlight conditions, heavy overcast being best. Get that roll developed and see how you did. Be very critical in your analysis. Are you consistently over or under or are you pretty close? If an adjustment is needed, do the adjustment at the meter. If pics are too thin, try ISO 80, if too dense, try 50. Once you get the Kodachrome nailed down, then you know what your meter's error is and you can take it to the bank, because Kodachrome is developed by a very precise process. It may take three rolls to really get the kit dialed in, but it's worth it in the long run. To shorten the process, shoot twelve exposures at each of ISO 50, 64, and 80. Then use the next roll to zero in on it. Lastly, expose for the highlights and let the shadows go to black when there's any contrast to speak of. Good luck! You'll love both otf those films!
