Kind of a weird question. What is better for printing a 6x7 negative: a 4x5 enlarger or an enlarger designed for 6x7cm? The reason I ask this is: would a the condenser head in a 4x5 enlarger cover the 6x7 area more evenly? I remember using a Beseler 23c in college with my 6x7 negs and the corners would be slightly darker than the rest of the image. I know there is an adjustment on the 23c, but I remember never getting it to work right. Could it just be the 23c? Are all 6x7 enlargers susceptable to this?