The lake of Posta Fibreno, is located by the village of Posta Fibreno, a small council of the Frosinone area in the Lazio Region. The lake is in a karstic terrain and rich in underwater springs.
Waiting for clearer water in winter time I edited some test shots filmed this summer. In this period, warmer, slower moving waters increase the production of algae and allow it to accumulate in large blobs covering most of lake vegetation. Underwater shots are almost completely ruined by this mucilage, that constantly sticks to the port. In the opening shots I got the front lens writing caught on the port. I have to put some black tape on it. Shame on me!
We will be back in water in January with a gin clear water.
For now, just a taste of this wonderful place.
Shot on a Panasonic GH2 + Lumix 8mm & 7-14mm loaded with Lee Powell’s Flow Motion 2.02 settings; Nauticam Housing.
Posted by Davide DB
on 23 September 2012 - 02:11 PM
Davide, Thanks for those most recent links. I will pass them on. I really found them interesting and, in a discussion yesterday with someone, we talked about how it was actually fun to learn more and more about this BM cam finding the good and the bad. Remember that this is a first generation cam so there should be improvements down the line.
I came across this comparison between 5DMK3 and BMC. They are compared for "dynamic range, sharpness, pushing levels, banding, artifacts, rolling shutter, chromakeying, wide/telephoto lengths, DOF (depth of field), low light, macro blocking, contrast, and more"
From what I understand they tried to shot in challenging conditions trying to see the camera limits. Maybe I missed something because the clips from the 5dMKIII are the ugliest I've seen so far. Really strange.
I suggest to see fullscreen and reading the video desciption.
Posted by Davide DB
on 20 September 2012 - 01:41 AM
Modified frog or modified shuffle kick is the way to go for filming while swimming. Anyway you have to exercise you video skills a lot to obtain a steady hand. Of course a nearly perfect setup is a good starting point
A DPV is a better choice for filming cave and wreck diving. Despite of the added difficulty of using a scooter in a cave environment (maybe a proper scooter cave training is a must) it adds a lot of stability.
The key point is getting a perfect trim and buoyancy of the entire setup. The best option is trying to have both camera setup and scooter+mount separately neutrally buoyant . If for some reason you have to remove the camera from the scooter mount you still have a working/manageable scooter. Sometimes it's hard to achieve and mainly depends on the camera setup.
A suggestion for tech dives: evaluate carefully the buoyancy system. I was so stupid to use Stix floats in a 80m+ dive. On the box neither on their web site they specify the max depth and it was my fault to not investigate. I used them a lot of times above 45m but below they became like chewing gum and it's a PITA finding yourself at depth with a heavy scooter and camera and a lot of deco on your back... Once crushed they need some hour to return to the original shape.
Posted by Davide DB
on 13 September 2012 - 12:03 PM
Everything went good, as all vacations, after all
Thank you for point me out your article. It's nearly the same work-flow I use with Edius. Except using 10M for 1080p and I'm satisfied with the results. My question on Vimeo arises because I found several people who use higher bitrate for Vimeo and they states that the final quality is better... The ratio behind this is since Vimeo compresses the material one more time after upload, you will get better quality if you have a higher bit rate to start with. Hummm... I wonder if this is true and if someone has tried.
He is referring to an Howard Hall video which is only 386MB while being of extreme quality. Ok: he is HH, he is using a Red camera and blah blah blah... but downloading his original file:
Well I answered my own question regarding the Howard Hall video. I downloaded the original source file. It was variable bit rate, dropping down to 9 Mbsec in the simple scenes and spiking to over 26 Mbsec in the complex scenes.
On the other hand, what is the maximum bitrate I can use for home viewing? Or better saying which bitrate is worth using? At home I have a Samsung tv with an integrated media palyer and a db plyer. Both reads H.264 files..