A rough start matching cameras at DVinfo.net

Don Litten · August 9th, 2012, 06:30 PM

I'm just starting work making a picture profile for my new AC160, that will match the GH2 with Flow Motion 2,2.

This is real rough but gives me something to start with and there is a learning curve with the 160 profiles.
The GH2 was shot with an 85mm, standard, -2.

Chip Thome · August 9th, 2012, 11:28 PM

Don I think I would start with doing an across your lens lineup comparison to make sure none is giving you colors already tweaked compared to the rest. I have read so many comments in the various forums I frequent, where people rant or rave about "colors" from such and such a lens. I want to say my Lumix Leica branded lenses "appear" to be giving me different colors than my other Lumix lenses. I might be full of crap there too, or just seeing a far sharper image. Either way, its something for you to consider as you go down this investigation of yours.

Good luck with it !!!

Chris Harding · August 10th, 2012, 12:05 AM

Hi Don

I had two AC-130's for 3 months and the lens on the 160 definately doesn't have the wow factor that the Leica lenses give you! My HMC82's with a smaller lens than the 160, gives a much better result in good light compared to my 130's (same lens as the 160) and simply cos it the Leica lens!!

What I did notice was the default scene file on the 130/160 is very flat ..especially Chroma so I would start off with at least a +2 on the Chroma scene file parameter. Actually try comparing footage shot on the F3 scene file (called spark) That will bring you a lot closer to the GH!! All the weddings I shot on the 130's with the default scene file needed a hefty colour saturation in post before I changed parameters..colours were just washed out!!

In case you were not aware, keep your iris on the 160 on or below F5.6 if you can...resolution suffers at anything from F8 and smaller with the 1/3rd chips!!!

Chris

Don Litten · August 10th, 2012, 08:27 AM

Thanks Chris! I was hoping you'd jump in.

Don Litten · August 10th, 2012, 12:31 PM

Getting better but I still need to work on the shadows and green

Chris Harding · August 10th, 2012, 07:16 PM

Hey Don

That's a HUGE improvement!!! For some reason I found that the 130/160 tended to throw the grass colour quite artificial ..sorta closer to a lime green especially if you over expose (which due to the tiny aperture range is very easy to do!!) I found that a bit of under-exposure kept grass the right colour and not looking like artificial turf.

Chris

August 9th, 2012, 06:30 PM	#1
Don Litten Major Player Join Date: Jun 2010 Location: Richmond Va Posts: 400	A rough start matching cameras I'm just starting work making a picture profile for my new AC160, that will match the GH2 with Flow Motion 2,2. This is real rough but gives me something to start with and there is a learning curve with the 160 profiles. The GH2 was shot with an 85mm, standard, -2. Attached Thumbnails

August 9th, 2012, 11:28 PM	#2
Chip Thome Major Player Join Date: Aug 2009 Location: Green Bay Wisconsin Posts: 553	Re: A rough start matching cameras Don I think I would start with doing an across your lens lineup comparison to make sure none is giving you colors already tweaked compared to the rest. I have read so many comments in the various forums I frequent, where people rant or rave about "colors" from such and such a lens. I want to say my Lumix Leica branded lenses "appear" to be giving me different colors than my other Lumix lenses. I might be full of crap there too, or just seeing a far sharper image. Either way, its something for you to consider as you go down this investigation of yours. Good luck with it !!!

August 10th, 2012, 12:05 AM	#3
Chris Harding Inner Circle Join Date: Jul 2009 Location: Perth, Western Australia Posts: 8,441	Re: A rough start matching cameras Hi Don I had two AC-130's for 3 months and the lens on the 160 definately doesn't have the wow factor that the Leica lenses give you! My HMC82's with a smaller lens than the 160, gives a much better result in good light compared to my 130's (same lens as the 160) and simply cos it the Leica lens!! What I did notice was the default scene file on the 130/160 is very flat ..especially Chroma so I would start off with at least a +2 on the Chroma scene file parameter. Actually try comparing footage shot on the F3 scene file (called spark) That will bring you a lot closer to the GH!! All the weddings I shot on the 130's with the default scene file needed a hefty colour saturation in post before I changed parameters..colours were just washed out!! In case you were not aware, keep your iris on the 160 on or below F5.6 if you can...resolution suffers at anything from F8 and smaller with the 1/3rd chips!!! Chris

August 10th, 2012, 08:27 AM	#4
Don Litten Major Player Join Date: Jun 2010 Location: Richmond Va Posts: 400	Re: A rough start matching cameras Thanks Chris! I was hoping you'd jump in.

August 10th, 2012, 12:31 PM	#5
Don Litten Major Player Join Date: Jun 2010 Location: Richmond Va Posts: 400	Re: A rough start matching cameras Getting better but I still need to work on the shadows and green Attached Thumbnails

August 10th, 2012, 07:16 PM	#6
Chris Harding Inner Circle Join Date: Jul 2009 Location: Perth, Western Australia Posts: 8,441	Re: A rough start matching cameras Hey Don That's a HUGE improvement!!! For some reason I found that the 130/160 tended to throw the grass colour quite artificial ..sorta closer to a lime green especially if you over expose (which due to the tiny aperture range is very easy to do!!) I found that a bit of under-exposure kept grass the right colour and not looking like artificial turf. Chris