J-log tips and tricks at DVinfo.net

Aaron Jones Sr. · May 14th, 2017, 03:41 PM

So I got my 50mm Roki running on my LS and looking for the J-log tips from you fine gentlemen.

First off how to get to it to turn it on?
Second, give me the don't and the do's.
Thirdly, what to keep in mind from your experience?

I took a little footage in my dark living room with no light on with just a little bit of sun light coming in through closed blinds and i was a amazed at how good this cam can see in the dark. Of course I have a Roki 5mm T1.5 on but still very impressive. I went out side to take a bit of sun light footage and it is very vibrant. I have to close down on the aperture ring on the lens with the full ND in position. I'm impressed at first glance.

Nick Haman · May 15th, 2017, 12:09 AM

When shooting JLog, always use zebras and histogram. I tend to shoot as bright as I can without the zebras showing up. Unless it's on a light/cloud or something like that. Set the zebras to 108% and when they show up on things you don't want to blow out, just stop it down a little.

I don't have the camera with me right now, so I can't help with how to find it, but also make sure you turn on the 1d lut on as well - its also in the menu somewhere, and gives a rough post-grade image on the LCD screen.

Also, look into buying the Leeming Lut Leeming LUT One - it's designed for the Ls300, and comes with a good guide for how to expose your shot to make the most out of it.

Aaron Jones Sr. · May 15th, 2017, 09:40 AM

Thanks for the insight. The leeming lut site had great information for shooting in J-log. Im still trying to figure out how to put the cam in J-log. This seems to escape me.

Edited: Ok I found it is this manual attached... Will do some practicing with the j-log today when I get home from work.

Steve Rosen · May 16th, 2017, 07:21 AM

I wish the LUTs output via HDMI... I never use the wretched viewfinder, and use the LCD mostly for menu changes since I shoulder mount and view with an EVF... I don't find exposure a problem though, the Gratical has good scopes, and the Z-Finder has good zebras - to be honest it's mostly practice, getting accustomed to whatever you're using to view while shooting...

But I would like the LUT output for color, contrast and focusing ...

Aaron Jones Sr. · May 16th, 2017, 10:38 AM

I still seem to be having a little bit of trouble. I went to Camera Process >> Gamma >> and changed to J-log1 but there seems to be no difference. I'm recording 150Mbs 4K 30fps. Trying to get the J-log setup going so I can practice the ETTR principle.

EDIT: I purchased the leeming lut. I have been practicing and I have finally got the hang of it now. I have been running outside and back in for a couple hours filming and then coloring. I need to keep going through the motions to get good at it though.

Aaron Jones Sr. · May 17th, 2017, 08:52 PM

I can't thank you guys enough for all the help. Today at a last minute notice I went and shot Tommy Hitman Hearns with Clarissa Shields today. I took a chance and shot it all in J-log1. MAN!! It turned out great for my first commercial gig with J-log. I will be shooting Clarissa Shield's next fight in Detroit as a result of showing up. So ring side I will have exclusive shots. I will need to grab a wider lens though. I shot all the footage today with a 35mm T1.5 Roki. Very shallow DOF, but I worked with it and got some awesome shots.

I think I finally got the hang of the J-log. I know I will need continual practice, but I'm off at a good start thanks to you fellas. I will post a few shots once I get some threw my post work flow.

Jay P. Kaley · May 17th, 2017, 09:24 PM

Awesome, very cool you got the next fight, congrats. It is so true about the shallow depth of field being nice, I came from a 1/3" sensor and first time a shot on that 35mm the bokeh ability was beauty.

The J-log can look really good, I've been shooting sports lately so haven't been using for sharpness and slo-mo. One note there is an "auto-sharpness" feature that is turned off in j-log, depending on what you're shooting adding a small bit of sharpness filter in post can make a difference. Not a must, just something to be aware of and consider.

Nice going, look forward to seeing some of the footage.

Aaron Jones Sr. · May 17th, 2017, 09:45 PM

Here is little bit of the footage from today.

https://mediazilla.com/joq4pyv13

John Vincent · May 21st, 2017, 02:14 AM

Aaron - great work. Hi from Ypsilanti BTW!

Been looking at the LS300 for a long time now; figured some other company would respond to it, but
so far, no. Maybe Panasonic in a week....

Still loving it?

Aaron Jones Sr. · May 21st, 2017, 02:09 PM

Hello John, Wow, we are pretty close to each other. Yes, trying to get the hang of the this wicket shallow DOF. I'm not quite use to that. I came from the Sony FS100's platform. So this extra sensitive sensor combined with these fast Roki's are quite the challenge in a run and gun flow. It will take more practice to develop that muscle memory and get the feel of the focus ring.

May 14th, 2017, 03:41 PM	#1
Aaron Jones Sr. Major Player Join Date: May 2013 Location: Flint, Michigan, USA Posts: 394	J-log tips and tricks So I got my 50mm Roki running on my LS and looking for the J-log tips from you fine gentlemen. First off how to get to it to turn it on? Second, give me the don't and the do's. Thirdly, what to keep in mind from your experience? I took a little footage in my dark living room with no light on with just a little bit of sun light coming in through closed blinds and i was a amazed at how good this cam can see in the dark. Of course I have a Roki 5mm T1.5 on but still very impressive. I went out side to take a bit of sun light footage and it is very vibrant. I have to close down on the aperture ring on the lens with the full ND in position. I'm impressed at first glance.

May 15th, 2017, 12:09 AM	#2
Nick Haman Regular Crew Join Date: Dec 2016 Location: Utrecht Posts: 88	Re: J-log tips and tricks When shooting JLog, always use zebras and histogram. I tend to shoot as bright as I can without the zebras showing up. Unless it's on a light/cloud or something like that. Set the zebras to 108% and when they show up on things you don't want to blow out, just stop it down a little. I don't have the camera with me right now, so I can't help with how to find it, but also make sure you turn on the 1d lut on as well - its also in the menu somewhere, and gives a rough post-grade image on the LCD screen. Also, look into buying the Leeming Lut Leeming LUT One - it's designed for the Ls300, and comes with a good guide for how to expose your shot to make the most out of it.

May 16th, 2017, 07:21 AM	#4
Steve Rosen Major Player Join Date: Dec 2005 Location: Monterey, California Posts: 895	Re: J-log tips and tricks I wish the LUTs output via HDMI... I never use the wretched viewfinder, and use the LCD mostly for menu changes since I shoulder mount and view with an EVF... I don't find exposure a problem though, the Gratical has good scopes, and the Z-Finder has good zebras - to be honest it's mostly practice, getting accustomed to whatever you're using to view while shooting... But I would like the LUT output for color, contrast and focusing ...

May 16th, 2017, 10:38 AM	#5
Aaron Jones Sr. Major Player Join Date: May 2013 Location: Flint, Michigan, USA Posts: 394	Re: J-log tips and tricks I still seem to be having a little bit of trouble. I went to Camera Process >> Gamma >> and changed to J-log1 but there seems to be no difference. I'm recording 150Mbs 4K 30fps. Trying to get the J-log setup going so I can practice the ETTR principle. EDIT: I purchased the leeming lut. I have been practicing and I have finally got the hang of it now. I have been running outside and back in for a couple hours filming and then coloring. I need to keep going through the motions to get good at it though. Last edited by Aaron Jones Sr.; May 16th, 2017 at 07:03 PM.

May 17th, 2017, 08:52 PM	#6
Aaron Jones Sr. Major Player Join Date: May 2013 Location: Flint, Michigan, USA Posts: 394	Re: J-log tips and tricks I can't thank you guys enough for all the help. Today at a last minute notice I went and shot Tommy Hitman Hearns with Clarissa Shields today. I took a chance and shot it all in J-log1. MAN!! It turned out great for my first commercial gig with J-log. I will be shooting Clarissa Shield's next fight in Detroit as a result of showing up. So ring side I will have exclusive shots. I will need to grab a wider lens though. I shot all the footage today with a 35mm T1.5 Roki. Very shallow DOF, but I worked with it and got some awesome shots. I think I finally got the hang of the J-log. I know I will need continual practice, but I'm off at a good start thanks to you fellas. I will post a few shots once I get some threw my post work flow.

May 17th, 2017, 09:24 PM	#7
Jay P. Kaley Regular Crew Join Date: Jan 2017 Location: Chattanooga TN Posts: 117	Re: J-log tips and tricks Awesome, very cool you got the next fight, congrats. It is so true about the shallow depth of field being nice, I came from a 1/3" sensor and first time a shot on that 35mm the bokeh ability was beauty. The J-log can look really good, I've been shooting sports lately so haven't been using for sharpness and slo-mo. One note there is an "auto-sharpness" feature that is turned off in j-log, depending on what you're shooting adding a small bit of sharpness filter in post can make a difference. Not a must, just something to be aware of and consider. Nice going, look forward to seeing some of the footage.

May 17th, 2017, 09:45 PM	#8
Aaron Jones Sr. Major Player Join Date: May 2013 Location: Flint, Michigan, USA Posts: 394	Re: J-log tips and tricks Here is little bit of the footage from today. https://mediazilla.com/joq4pyv13 YouTube (Short URL)

May 21st, 2017, 02:14 AM	#9
John Vincent Trustee Join Date: Sep 2005 Posts: 1,065	Re: J-log tips and tricks Aaron - great work. Hi from Ypsilanti BTW! Been looking at the LS300 for a long time now; figured some other company would respond to it, but so far, no. Maybe Panasonic in a week.... Still loving it?

May 21st, 2017, 02:09 PM	#10
Aaron Jones Sr. Major Player Join Date: May 2013 Location: Flint, Michigan, USA Posts: 394	Re: J-log tips and tricks Hello John, Wow, we are pretty close to each other. Yes, trying to get the hang of the this wicket shallow DOF. I'm not quite use to that. I came from the Sony FS100's platform. So this extra sensitive sensor combined with these fast Roki's are quite the challenge in a run and gun flow. It will take more practice to develop that muscle memory and get the feel of the focus ring.