- Posts: 670
- Joined: Thu Apr 28, 2016 3:50 am
Hey all,
So took my BMPCC4K out for a spin at a soccer game yesterday. I have it set up using the DEC LensRegain, and my Canon 28mm lens. I noticed something, which I suspect I should have known... there was no IRIS (fstop?) option for my lens. So, somehow, I had it wide open I guess because when I first turned on the unit, the screen was basically gray lines, though I could see my hand wave in front of it.. it was like there was a gray mesh in front of the lens. I first thought something was wrong with the camera. Later I finally was able to auto white balance and that seemed to have work, in that it set the FPS to like 2000, ISO to 100, and that was it. It was still a bit blown out but it worked well enough.
So, I guess.. the LensRegain controls the IRIS. I think I knew this before and just forgot and havent had much of a chance to really experiment with it. I didnt have the module attached to the LensRegain either, so had no way of adjusting the focus or iris. I vaguely recall now that with the LensRegain IRIS info wont ever make it in to the camera? Even without, I guess most lenses dont have iris control via the camera? Either way, given I was using a photo lens.. with no manual Iris wheel, is there a proper way to adjust the Fstop on the lens so that, in day time shots, I can shoot without a good portion of the image being bokeh/blurry. Ideally depending on the lens, I basically dont even want any bokeh. At least not for shooting sports video from the stands.
Also.. I used my 49WH battery (on a rails/vmount setup) with DTAP to DC in cord that I got off of Amazon for $35, and it worked great. The battery has 4 dots, and after shooting for a bit over an hour, it was still at 4 dots. Incidentally, I recorded 2 sets of 40minute halves, at 60P/HD, no problem. I was curious how long it could record continuously, and this didnt let me down. I went HD to get the added crop as my 28mm on 4K was getting the entire field and I wanted it a bit closer in without moving my position. So switching to HD did the trick.
So took my BMPCC4K out for a spin at a soccer game yesterday. I have it set up using the DEC LensRegain, and my Canon 28mm lens. I noticed something, which I suspect I should have known... there was no IRIS (fstop?) option for my lens. So, somehow, I had it wide open I guess because when I first turned on the unit, the screen was basically gray lines, though I could see my hand wave in front of it.. it was like there was a gray mesh in front of the lens. I first thought something was wrong with the camera. Later I finally was able to auto white balance and that seemed to have work, in that it set the FPS to like 2000, ISO to 100, and that was it. It was still a bit blown out but it worked well enough.
So, I guess.. the LensRegain controls the IRIS. I think I knew this before and just forgot and havent had much of a chance to really experiment with it. I didnt have the module attached to the LensRegain either, so had no way of adjusting the focus or iris. I vaguely recall now that with the LensRegain IRIS info wont ever make it in to the camera? Even without, I guess most lenses dont have iris control via the camera? Either way, given I was using a photo lens.. with no manual Iris wheel, is there a proper way to adjust the Fstop on the lens so that, in day time shots, I can shoot without a good portion of the image being bokeh/blurry. Ideally depending on the lens, I basically dont even want any bokeh. At least not for shooting sports video from the stands.
Also.. I used my 49WH battery (on a rails/vmount setup) with DTAP to DC in cord that I got off of Amazon for $35, and it worked great. The battery has 4 dots, and after shooting for a bit over an hour, it was still at 4 dots. Incidentally, I recorded 2 sets of 40minute halves, at 60P/HD, no problem. I was curious how long it could record continuously, and this didnt let me down. I went HD to get the added crop as my 28mm on 4K was getting the entire field and I wanted it a bit closer in without moving my position. So switching to HD did the trick.
Custom DIY AMD1950x 16-core/32-thread, liquid cooled, 64GB 3600Mhz RAM, 950Pro-512GB NVMe os/apps, 2x500GB 850 Evo RAID 0 SATA3, Zotac 1070 8GB video, USB 3.1Gen2 RAID0 2x4TB, 2x2TB Crucial MX500 SSD SATA3.