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Nick Hope

Member Since 12 Sep 2004
Offline Last Active Yesterday, 06:16 PM

Posts I've Made

In Topic: Another Unidentified Fish

06 March 2017 - 06:10 PM



Possibly Kyphosus cinerascens, (blue seachub)

In Topic: Shooting Macro for the first time

24 January 2017 - 08:41 PM

I would shoot 4k. Hopefully, once you're framed and shooting, the camera will be settled on something, preferably some sort of tripod, and still.


"Somewhere in the middle" of the range usually works best for aperture. Don't go too very small or you'll get diffraction and the image will go soft. Better get the lights closer than go very wide, unless you specifically want a shallow depth of field.


Longer light arms give more options including backlighting. But if it's your first time then try one from the front and one from the side, or just a single light from one side or directly above before getting too fancy with backlighting.


For me, the Keldan 4x are too wide for macro. More backscatter gets lit up and it's difficult not to light the background as well as the subject. I 3D printed shades for mine but then eventually changed to narrower FIX lights.


Framing.... Try to get at least one wide establishing shot. Often you can do this after getting your tight shots as it's usually easier and faster to get. Also try to get low down so you can see more distant background to give shots depth.

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.