HMC150's "Dynamic Range Stretch"

armisiano

armisiano

Veteran
Anyone out there who owns the HMC150, would you post some footage demonstrating the "Dynamic Range Stretch" feature please? Something very simple would be perfect, just the same static scenic shot before and after. You could even just do screen grabs. Either way I'm very curious to see this feature demonstrated and I'd like to think I'm not the only one.
 
Thomas Lew said:
I'd be glad to do this for you but what exactly is that feature?...
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I'm not exactly sure, but according to the Panasonic website, it's listed as: "A host of advanced video functions like Cinelike Gamma and Dynamic Range Stretch (DRS)", all I can say is read the manual, :) and see if you stubmle across it.
 
I believe it's a process to allow a wider exposure and detail latitude.. or something like that
 
Dynamic range stretch increases the perceived lattitude of the camera - that is, provides more detail in dark and bright areas - by somehow adjusting the gamma on a pixel-by-pixel basis. So a good test of this would be a scene with both very dark and very bright areas - spotlighting - theatrical lighting - bright window in a dim room - etc.
 
that does suck, DRS on the mode we are least likely to shoot on- gotta save something for the HMC150A I guess....
 
It was said the 170 could use it in 60i or 60p. Edweirdo, unless I have a different copy of that manual, it says not available in settings other than 50i/50p, so most likely 720p60 should be good too.

I'm thinking that function would be more useful for impromptu or event shooting where you don't have controlled lighting (which is often shot 60i/p anyway). In a controlled shoot doing 24p, I don't see it being as useful. On the other hand, I can't think of a good technical reason why it couldn't work in all modes.

Maybe I am understanding it wrong, but would DRS mess with your gamma and knee settings?
 
DRS is like every pixel having its own gamma and knee. I mean, it's not quite that, but that's sort of like what it's like.
 
mcsmooth said:
In a controlled shoot doing 24p, I don't see it being as useful.
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I can see added dynamic range being useful in all modes.

Page 5 of the brochure doesn’t have any asterisks or fine print stating "only certain modes"- this was one of several features that helped sell me on the camera

I am a 24p shooter. Will I cancel my order, no- I am still excited and can't wait to get it. But had I known this I would have looked for other "features only avail in certain modes" before deciding
 
I checked the manual earlier today then just tried to change the DRS settings. I tried to turn it on at 24p - no go. I switched to 60p and the DRS option was no longer greyed out. It appears that the camera can only use DRS in the 60p/60i modes. Not sure why.
 
kurtmo said:
I checked the manual earlier today then just tried to change the DRS settings. I tried to turn it on at 24p - no go. I switched to 60p and the DRS option was no longer greyed out. It appears that the camera can only use DRS in the 60p/60i modes. Not sure why.
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Just for kicks, can you try DRS in 720/30p and/or 1080/30p (since 30p is "over 60")?
 
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