It's 400 w/s so similar to my Impact 41's which are 375 w/s. Good for medium format and digital, plenty of light

I've sold 16x20 B&W silver gelatin prints from 8x10 and 4x5 B&W portrait negatives. Not really interested in digital (I use it for testing lighting), happy with my Sinars. I have sold 30x40 color prints from Hasselblad negatives when I was doing analog weddings, it's all different. Never anything as big as 40x50. Anyway Good Luck to you whatever you are working on.

I'm also interested in shooting dry plates and alternative process films. This requires a LOT of light. Dry plates are about ISO 1.5 LOL