Radiance 3D LUT (5x5x5 Cube) Calibration with CalMAN 5 - Page 9

Good to know, thank you.

I know my need for a night and day settings for power gamma are virtually eliminated using IT.1886.
I would like to continue using it.

Correct the cube AutoCal does not change the BT1886 but it does use it. You can't have different gamma choices from grayscale to cube they have to be the same choice. Otherwise things just won't line up and you will get indeterminate results. But CalMAN 5 handles all of that for you. Select you gamma formula and target before you run grayscale AutoCal and use the same for cube AutoCal..

As Derek said: you will need two different CMS settings in your Radiance.

Did a full calibration of my RS35 with the Radiance and Calman 5. The Radiance did a brilliant job with no artifacts at all (I've seen some blocking issues if you are aggressive with the Radiance in the past, I was worried this might be a problem with the LUT but it wasn't). The process didn't take long at all with my C6. Couldn't have been any easier. Big congratulations to Spectracal for the new software and Lumagen for one of the best free updates one could ask for from one of the best products on the market already.

With the RS35, was there much improvement with the new 125 pt CMS? Which image preset was the best to start with?

Yes. The RS35 does a great job on its own for grayscale calibration and basic CMS, but points outside of 75% could be better. I also don't think the gamma calibration in the RS35 (or any JVC for that matter) does as good of a job as the Radiance. You tend to get issues such as banding and solarization. I've been using the Radiance for calibration alongside my RS35 for quite some time now and have always been happy with it. I did notice that if you push the Radiance too hard some blocking is noticed in the image, so I would usually dial in the grayscale and color as good as possible with the RS35 controls and then fine tune with the Radiance and that would work pretty well. But with the new LUT capabilities the Radiance got my color points nearly perfect along with grayscale and gamma (I used BT1886 for gamma and 2000 for Delta) and didn't notice any artifacts at all in the image with the test clips I typically use to evaluate for issues.

For preset I just use User 1. I also used Custom Gamma and selected 2.5 and Custom grayscale with the 6500 preset and adjust the two point using 30 and 100 (used 100 based on recommendation from Spectracal).

" via a RS-232 serial port on the back of the lumagen" If you don't have a RS-232 serial port on your laptop, but have VGA, HDMI, USB 3 power port. What kind of cable can you use to connect the laptop to the Mini for Calman to control the Mini?

ss

You'll need a USB to serial adapter like this one:
http://store.spectracal.com/consumer/accessories/calman-certified-usb-hub-237.html

It doesn't have to be that one, but we strongly recommend getting one that is FTDI based. The one above is what we do all our testing with, so we know it's rock solid.

I've used that USB-serial adapter plus models from Keyspan (19 in the model number) and TRENDnet (TU-S9) and all three have worked flawlessly. USB-serial adapters have gotten quite inexpensive. Monoprice.com doesn't carry any of these particular models, but their prices start at $5.54 for USB-serial converters and top out below $10. I think I paid $20 for the Keyspan model way back around 2007 but prices are generally much lower. Amazon is selling the TRENDnet TU-S9 for $10.15. It is based on a Prolific chipset known for a high degree of compatibility. The only thing you have to know to use a USB-serial converter is how to figure out what COM Port number is assigned to the USB-serial adapter. This is easy enough to do in Windows 7...

Control Panel > Device Manager > Ports (COM & LPT) (this won't appear in the Device Manager list until the USB-serial adapter is connected to the computer and is active (device driver loaded).

I just plugged mine in and it came up as COM13 even though there are no other active serial ports. That number isn't necessarily consistent, so each time you use the USB-serial adapter, check for the COM port number. Once you know the COM port number you can select it in the Radiance update executable file's menu before you start the update process.

You can change the default com port to com1 or com2 on most computers, using the properties in the device manager for Startech adapters or the keyspan utility for the keyspan. Com1 is best if available because it's the default in calman, so you get connected a bit faster.

Once you set it that way, it doesn't change.

Sent from my iPad using Tapatalk HD

However CalMAN will support any com port numbered device 1 to 4096.

Thanks,

The RS232 cable that comes with the mini, is that cable a F/F cable and how long is it?

If I go with this cable and not use the supplied RS232 cable, I am guessing I would need a DB9 Female/Female Mini Gender Changer - Coupler, if so will adding a F/F adapter cause problems?
http://www.amazon.com/Serial-Adapter-Chipset-Supports-Windows/dp/B003N9TYW0/ref=pd_cp_e_2

ss
Edited by sillysally - 9/27/12 at 2:40am

No, the Supplied Null rs232 cable that comes with Radiance is M/F (around 6' long) You use this cable connected to the back of Mini in line with the FTDI based USB/rs232 adaptor which is male so connects directly to the female end of the rs232 null cable & the other end to USB on PC..

That is what I thought after I ordered the above cable, I guess I will send that cable back because 10 feet plus 6 feet is just to long imo.

I asked Loel at the SpectraCal store if this cable would connect directly to the mini, he said probably.

ss

The Radiances we sell direct have the proper cable and USB to RS232 adapter included in the kit.

Are you saying that there is this kit that is included from Lumagen or is this a bonus from SpectraCal when you buy a Radiance.

You may want to tell Sotti and the sales team about the "USB to RS232 adapter included in the kit". It seems that nobody at SpectraCal knows about that, or at-least they are not telling there customers about it.
Also you may want to suggest that the "Kit" is added to your description of the different Radiance's that are listed on the web page.

ss

The cable comes with the radiance.

The adapter comes from us.

I didn't assume you were buying the radiance from us, I was just letting you know everything you'd need.

I talked to your sales dept in detail, but ended up buying from the AVS store today around 3PM, should have the mini this Monday.

ss

regarding undersaturation of the standard color profile at RS55/65/X70/X90:
I could get RGBCMY closer to the Rec709 targets (in normal lamp mode) by a little service menu tweak.
There, profile preset "standard" has a parameter named "L2", set to 5 as factory default.
I set it to 4 because this seems to be in association to color profile "Cinema 2".
With this, profile "standard" gots a little bit larger color space (not much, but visible).
For the cube 3 can be better (that's "Cinema 1" with larger color space).
To get it active I had to close the service menu and switch to any other than the standard and back to it.
But do not switch to color preset "off", cause there is a FW bug - if you change back from "off" to "standard", the low end grayscale gots a bit shifted..

Edited by *Harry* - 9/28/12 at 12:47pm

Hi Derek,

Sure, but for some reason that I don't understand (I reported this discrepancy many times during the beta) Calman has an "auto" setting that works perfectly to find the Radiance as a pattern generator, but as a display it defaults to COM1 and not to auto (which is not available), so you have to specify the com port manually.

Because I'm lazy, I therefore prefer to set the com port of the adapter I use most frequently to com1:).

Also the Radiance config utility and f/w upgrade utility don't work well if the com port is 10 or above in my set up (keyspan adapter, haven't tried with the startech), so staying below that is preferable in some situations. I have reported this to Lumagen as well a while ago, so it might have been fixed in V1.4 of the config utility, I haven't tried this as I'm happy with my workaround of using COM1.
Edited by Manni01 - 9/28/12 at 12:56am

Your calibration of the VT50 seems near perfect. It will be interesing to see what the Lumagen calibration can add.

I have had Lumagens for years and I really appreciate the scaling.

- Rich

Thanks for your kind words.

I am getting the mini 3D for it and Calman 5's cube/inter outer point's CMS calibration capability. I don't think I can do much more with a normal 2D ISF calibration.

ss

You could by calibrating Rec.709 at 75% saturation.

The 125 point LUT will improve your picture. Once you move your 100% primary points out and then run the calibration you'll get something like this:



Here's an extreme LUT fix of a Sony DLP I did last night:

Kyle DLP 02 Studio Report-9_27_2012_AVS.pdf 472k .pdf file

I do calibrate at 75%/709.

Yes that's why I am getting the mini to see for myself what differences it makes for my eye's. And because I do this as a hobby (NFP), I am under no time restriction and don't need to impress anybody's eyes but mine.
Of-course if someone other than me finds my settings pleasing to there eyes, that's a nice plus.

ss.

I can't help but wonder how much of an improvement the 125 pt calibration will have on the VT50.

Looking forward to your honest opinion.

Not exactly a VT50, but these were my results with a VT25
http://www.avsforum.com/t/1427834/radiance-3d-lut-5x5x5-cube-calibration-with-calman-5/60#post_22400505

You asked this 8 days ago:

And it was answered.

What is it you're looking for? Numbers? Pictures? An excuse to buy a Radiance?

I think Jim wants more than one opinion, and a excuse to get a mini.

He's probably smart waiting for the bugs to get iron out, and let us beat are brains out trying to get perfection,

ss

regarding the USB-to-Serial adapter:

I have a hard time finding a USB-to-Serial adapter in stores here in LA that uses a FTDI chipset... tried Frys, Staples, Best Buy... any suggestions on where to buy one with FTDI chipset (incl. Win 7 support) at a physical store ?

Has anybody personal experience with Calman 5 and the Radiance using a USB-to-Serial adapter with a Prolific PL2303HX Chipset ? I heard that they are unstable and provide issues on Win 7 x64...


Thanks.

- M