Jump to content

Nick Hope

Member Since 12 Sep 2004
Offline Last Active Yesterday, 09:34 PM

Posts I've Made

In Topic: Scorpionfish from Ambon

20 January 2017 - 01:21 AM

Looks like a stonefish (Synanceia verrucosa) to me.

In Topic: Panasonic LUMIX GH5 for underwater video

07 January 2017 - 06:29 PM

Won't be be getting the anamorphic full sensor (4:3) 5K readout in one of the FW updates? This will provide similar image to the 1440p ?


Maybe but my point was, I reckon at 400Mbps there's a good chance they could manage 10-bit 4:2:2 60p at 2.7k, which would be a preferable format for me to shoot because of the scope to stabilize and pan/crop it then deliver full HD. They presumably won't be able to manage that quality at 5K or they would also offer it at 4K. I probably should have left 1440p out of it as I forget that's 4:3, not 16:9 :swimmingfish: 


However, I still think the GH5 is a big update from GH4 shooters, even if it was still only shooting 4K@30p. We now have full width of the sensor, no rolling shutter, the IBIS / DualIS for more silky smooth shoots, better ISO performance, AutoISO and fingers crossed better color rendition.

I totally agree. It appears to be a great upgrade. My personal reason for probably skipping is partly due to spending more time in post than shooting in the next year or two.

In Topic: Panasonic LUMIX GH5 for underwater video

06 January 2017 - 08:19 PM


Thanks. So 10-bit-4:2:2 All-I is only planned up to 30p @ 4k. This may tip the balance towards me sitting this one out and sticking with my GH4.


I wish cameras like this would give us the option of doing 2.7k or 1440p like the GoPros and give us the higher bit depth and color sampling. It's a great format for stabilizing and doing a bit of re-framing before delivering in 1080p.


Guys, there is advantage of shooting at 60 fps (or 48 fps)! I have studied a lot of UW videos done by popular videographers, They incorporated a lot of slow motions, not only to create that "graceful" manta/shark glide by scene, but it's also to create the "stabilized" footage feel. If you shoot high fps and slow it down by 1/3 or 1/2, chances is you don't need to use Warp Stabilizer. If you force a 24 fps/30fps to slow down, you're introducing duplicated in between frames, which I think there is some not so desire effects.


Well yes of course. And that is a good advantage. But as for >30p delivered at >30p, I don't think I've ever heard anyone say they actually like it, apart from the manufacturers selling it. Anyway, that's a subject for another discussion.

In Topic: Panasonic LUMIX GH5 for underwater video

06 January 2017 - 02:48 AM

It's very easy for 48+ frame rate to look really cheap and nasty. It's just too real and has that kind of "video" look associated with crappy TV shows. For me it totally loses the cinematic sense of lower frame rates, and sometimes it's somehow a little unsettling. The Hobbit at 48p was awful. Maybe we'll get used to it and low frame rates will end up looking weird. This Griffin Hammond GH5 video is about the best I've seen someone make of it:



Jonathan Bird's Blue World has been using 60p for a while on YouTube and it doesn't look too bad there. https://www.youtube....ser/BlueWorldTV

In Topic: Panasonic LUMIX GH5 for underwater video

05 January 2017 - 06:49 PM

Wow, those specs look truly impressive, particulary 4:2:2 60p 4k via paid upgrade...


I think it's intended to be free.


There are some native clips to download from the link in the description of this video:



Vegas Pro and Davinci Resolve won't open the 10-bit 422 footage.