Originally Posted by Brook Hill
New time = (New length of projected image divided by original length of image) squared multiplied by the original time
Well, not quite ...
See the sticky thread on this subject at the head of this forum http://www.apug.org/forums/forum41/5...ustment-5.html
f-Stop Timers - Enlarging Meters
I see,based on what math skills I have ,it seems the end result would be better calculated taken all things inconsideration by use of a enlarging meter(which so happens to be my plan any wise) thankyou Professor(Nicholas).