I am just starting out with 4x5. I have done 35/120 for a great part of my life. I have been "given" 4 holders that always leave light leaks on the negative. Is there anyone out there who has film holders 4x5 that are proven "sealed" ? I only need maybe 2 for now so I can see what it is like to make a great 4x5. I live in W/Canada so shipping will be the biggest deciding factor. I have invested in the camera, lens, enlarger lens and 100 sheets of film only to be discourage by the holders. Maybe that the marks are left by something else but people here and in LFP think as I do. Someone must have some proven light sealed 4x5 that are just taking up space in their collection. And NO I do not want your "free" ones as I have paid shipping across N America for crap.