I found a variable condenser and I am using a 135mm enlarging lens. I found that it keeps the time from being so short. I was also having a bit of a problem with the exposure being too shot to burn a dodge.
Do you mean you have the condenser that is moved depending on the lens or your a non variable condenser that swaps out? In any case what blub are your using, 75, 150 or 250 watt?