wrapped 24p is working perfectly, but sometimes the 720p60 show a very low datarate around 6Mbps. to try to solve this there is the patches below with another matrix for 720p

gh1 is very pŕoblematic camera.

the achievement to avoid the diagonal rain only works with noise reduction +2 in camera, but it hurts resolution

using noise reduction -2 improves resolution but diagonal rain shows up ugly.

big problem: 5dtorgb does not remove it !!!

oh my god! what to do now? go back to default matrices with small datarate improvement???

No Dagonal Rain Patch for GH1

the patch in this post is special. it uses the original panasonic matrix and default gop, but there is a fine tuned qp (quantization parameter) adjust to avoid the diagonal rain and keep a good enough datarate in low light in wrapped 24p and in 60p. it can use the noise reduction -2 for best resolution and no problem.

@apefos after your description, I wonder if a used GH1 should be worth around 150 Euro. With all the problems, no audio hack, lower bitrate, no touch screen, no high burst mode, etc, may be adding another 100 Euro to have a GH2 is a wiser decision.

I did some real world footage with the gh1 today with the "No Diagonal Rain Patch" and it works ok. The datarate vary from 11 to 37Mbps depending on detail and exposure on scene. The codec is variable datarate, when there is no detail and less movements the datarate is lower but the quality is pretty good. I did wrapped 24p and 720p60 for slowmotion, both works without empty frames in streamparser. 720p60 upresize ok to 1080p. I used the noise reduction -2 and sharpness 0 in camera for better quality, the contrast and saturation can vary depending on scene. Iso was from 100 up to 1600. The vertical stripes lines just show up when the image is underexposed, in good exposure I cannot see it no matter the iso. The iDynamic works pretty good to lift the shadows when needed, I used it with iso 100 for less noise. The horizontal pulsing banding starts to show up in iso 1250 and above, from iso 100 up to iso 1000 there is no significant horizontal pulsing banding. The pulldown removal is easy to do in computer, the order of pulldown is always the same. There is no diagonal rain with this patch. The gh1 is a great camera for blu-ray and web videos (youtube and vimeo) and it does good grading in post (to be honest if you do good settings in film mode contrast and saturation and a good exposure and good white balance there is no need of grading in post), I perceived that the standard film mode delivers the best dynamic range and image quality. Neatvideo cleans the iso 1600 very good and can reduce the horizontal pulsing banding from the iso 1600 using temporal set to 1. If you ask me, for cinema theater projection I miss the great gh2 image noise and texture quality from The End NR4 Intra 120 Patch, for bluray and web gh1 is ok, and a good B camera for gh2 cinema production.

@apefos the "No Diagonal Rain Patch" looks great in my screen. Did you use noise reduction in your post production for the evening scene? Well, I hope that @humpman will soon get his "qp" things to GF1 and G2 to live up the old pal!

@apefos I will have same time tomorrow and Id like to make final decision for stable GH1 settings 25p? No Dagonal Rain Patch would be your no1 at the moment to test?

NeatVideo 4.1.1 Presets and Profiles for GH1 using "No Diagonal Rain Patch" (for 24p).

Tweaked for best noise reduction and to minimize the vertical strip pattern and the horizontal lines pulsing from iso 100 up to iso 3200.

I got a GH1 for fun. I will install your patch and report later.

@yskunto thanks, you will like...

@owen i dont know if it can work on gf1, maybe there is an answer in hacks faq.

@yskunto I saw your post in other topic and I will answer here because it is related to this patch: do not worry about increase the datarate and about native 24p.

native 24p is completely unstable in GH1 so it is better to record wrapped 24p inside 60i. You can use a free software called HandBrake to convert the footage to native 24p. It can save custom settings and do batch processing.

The datarate in "no diagonal rain patch" is enough for grading in post and works ok for web videos, pendrive/bluray delivery or tv broadcast, no problem.

In the "no diagonal rain patch" there are no custom matrices, I started experimenting with custom matrices and different QP, but I ended using the panasonic original matrices, and the QPmin is 19 and QPmax is 19 also. Stable and good quality.

In my previous post above where I said "QPmax is 19 also" it was a wrong information, the correct information is: the QPmax is 51

@yskunto can you say how the LPowell patch is better than the no diagonal rain? does it show better image in which situations? also you can try to change the no diagonal rain patch for QPmin=4 or 5 or 6... and keep QPmax=51 to perceive differences. you can also try to increase datarate to something like 48Mbps...