I recently got as a gift an excelent Rolleiflex 2.8a #1154034 (1949-1951, Opton), very good technical and look conditions, fully serviced. I have only a doubt: the image through the ground glass looks no that bright (3-4 stops darker than true). Moreover, light is not even through the whole glass: while the centre is bright (good for critical focusing), corners fade smoothly in a grey shade. Is that normal? Should the almost 60 years old glass be replaced with a newer and brighter one?
thanks!