Here is an image from my P45+. This problem occurs every once and then ruining a shot here and a shot there, maybe 3 per4GB card full.
My question: Is there any MF solution which is as reliable as Canon ? That just makes a picture when one presses the shutter ? Without dark streaks, color bands, centerfolds or other artefacts ?
I too have seen this happen and I do believe P1 will tell you it appears that the camera is being shot to quickly and the buffer is being over run.
You should not ever see that with AF cameras and AF coupled lenses because it was explained to me by P1 Tech that the camera will not allow you to shot too quickly on a AF style camera body because it will not release the shutter. I demo and install these cameras everyday and I do not see this with AF cameras.
My experience has been when I had several P backs at a fashion shooter studio several years ago and he started seeing these. He was shooting V system 500 CM and ELM We really couldnot explain the issue or solve it. Later I was told that if we had a 555 ELD I would not see this. A week later I asked if we could bring a system back and show him we had solved the problems. We took a 555 and let him shoot and he could never out run the buffer because the camera would not release until the P1 back was ready. This is why sometimes you shoot and the camera will not release until the buffer frees up space.
We had the same problem at a demo with Nasa. They wanted to shoot as fast as the spec, so they set the camera to shoot as fast as the Hasselblad would allow. As it got to the 12 image, it over runs the buffer and you start to see corrupted images like these. They also had old ELM and EL cameras that fired remotely.
And we never see this with P21 or P21 Plus. We see photographers skip flashes all the time because they shoot faster than the pack is recycling.
Plus backs should not do this as often as non Plus backs because the buffer is twice as large.
I think you may want to try to isolate this with AF lens and then try the Hasselblad 110mm with adapter. This would also explain why the meta data is not there because this is a manual lens. I would bet that the problem could be only when using the manual lens on this AF camera.
I am going to try this later this morning with 2 Phase One 645 with P45+ and manual Hasselblad lens attached using Mamiya AF/Hasselblad lens adapter.
Also FYI, when I was at Phase One headquarters several years ago when the P45 was first being built, one of the engineers at P1 stated that all P1 P backs had been developed around the Sandisk technology. That is why P1 ships with Sandisk and the reason I always use and recommend these. I have seen many cards work fine too and I have never been able to determine that a bad card caused this.
But for anyone that experiences this with manual Hasselblad V system, 555 ELD or shooting slower after you have heard the ready confirmation beep will solve this issue.
Good luck Edmound, I know you will solve this as you are the most scientific member of this board. I will report my findings later today.
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