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Chronos User Discussion / Re: Newbie Questions
« on: February 24, 2021, 09:28:52 AM »
Hi Matt, I can try and answer most of your questions.
1. The 5mm spacer is to account for proper focusing, usually at infinity. This will depend on the lens. The best way is to just check with the specific lens you want to use and see if you can focus properly.
2. I haven't used an Expo Disk for white balance, but I've definitely used a x-rite color checker which has a proper white balance chip. I like to shoot Cinema DNG with my Chronos 2.1 and do proper color balance/correction in post.
3. The Chronos 2.1 has what is effectively a 2x crop sensor compared to 35mm full-frame.
4. Unfortunately there is no exposure Histogram. Hopefully that is something that can be added to the software at some time in the future as it would be nice to have.
5. Shutter angle on the Chronos is no different than any normal video shooting. Around 180 deg gives you a very natural look to video wrt motion blur, but it's not a hard rule. I would generally try and stay away from 360 deg shutter, but if you are shooting at extremely high speeds, that might be the only option. It will be a tradeoff for "look" compared to boosting the gain that degrades the quality. It's best to experiment a bit.
6. You shouldn't have to do a black calibration after changing the shutter angle. You definitely need to with changing resolutions and frame rates, and wait until the camera is fully warmed up for best results. Also, search for my post on optimal horizontal resolutions, there are really only 4 base horiz resolutions on the 2.1: 1920, 1472, 1152, and 832. Everything else won't gain you anything wrt speed - only file size, and would be the same as cropping in post.
1. The 5mm spacer is to account for proper focusing, usually at infinity. This will depend on the lens. The best way is to just check with the specific lens you want to use and see if you can focus properly.
2. I haven't used an Expo Disk for white balance, but I've definitely used a x-rite color checker which has a proper white balance chip. I like to shoot Cinema DNG with my Chronos 2.1 and do proper color balance/correction in post.
3. The Chronos 2.1 has what is effectively a 2x crop sensor compared to 35mm full-frame.
4. Unfortunately there is no exposure Histogram. Hopefully that is something that can be added to the software at some time in the future as it would be nice to have.
5. Shutter angle on the Chronos is no different than any normal video shooting. Around 180 deg gives you a very natural look to video wrt motion blur, but it's not a hard rule. I would generally try and stay away from 360 deg shutter, but if you are shooting at extremely high speeds, that might be the only option. It will be a tradeoff for "look" compared to boosting the gain that degrades the quality. It's best to experiment a bit.
6. You shouldn't have to do a black calibration after changing the shutter angle. You definitely need to with changing resolutions and frame rates, and wait until the camera is fully warmed up for best results. Also, search for my post on optimal horizontal resolutions, there are really only 4 base horiz resolutions on the 2.1: 1920, 1472, 1152, and 832. Everything else won't gain you anything wrt speed - only file size, and would be the same as cropping in post.