Brian Griffith Posted December 12, 2006 Share #1 Posted December 12, 2006 Advertisement (gone after registration) I've made available a couple test settings files for RAW Developer which use a new camera ICC profile for the M8. A zipped folder containing 2 RAW Developer settings files can be found here: http://www.iridientdigital.com/downloads/LeicaM8_BG_ProfilingTests.zip The "rdsf" settings files can be loaded into RAW Developer by first opening an image and then double clicking the settings file or by clicking the "Load" button found near the top of the Settings window. These are preliminary test settings and may or may not give good results over a wide range of shooting conditions. I'm interested in receiving feedback from M8 users. The camera ICC profile used by these settings was created using a Color Checker SG chart shot under studio lighting without an IR cut filter. I have not received any color chart reference files for the M8 that have been shot with an IR cut filter, but hopefully will be getting some soon. These settings are designed for use without an IR filter, however some adjustment of the white balance color correction adjustment (approx +6 to +10 towards magenta) may give OK results in some cases when an IR cut filter has been used. No effort has been made with this camera profile to correct for potential IR black issues. If you are looking for a "black fix" profile this is not it. Also note that the camera tone curves used in these files is specifically designed for use with the embedded ICC profile and may not give good results when used with other ICC profles. Thanks, Brian Griffith Iridient Digital Link to post Share on other sites More sharing options...
Advertisement Posted December 12, 2006 Posted December 12, 2006 Hi Brian Griffith, Take a look here New Test M8 profile and settings for RAW Developer. I'm sure you'll find what you were looking for!
harmsr Posted December 13, 2006 Share #2 Posted December 13, 2006 Brian, I have the M8, B+W 486 IR cut filters, SG card, daylight balanced 5000K lighting with tent for product photography, White balance cards, and the following lenses: 28 Cron ASPH coded, 35 Lux ASPH coded, 50 Lux ASPH coded, 75 Cron ASPH coded, 28/35/50 Tri-Elmar coded. If other lenses are important, Guy M. is local and I'm sure would loan me a lens for a day to take the shots together. Describe for me how you want the shots set-up and I would be happy to send you DNG files. I am completely clueless on what you need to develop a profile, so please let me know ISO, aperature, lens, amount to fill the frame if vignetting is important, and whether you want the lens coding enabled. Best, Ray Link to post Share on other sites More sharing options...
Brian Griffith Posted December 13, 2006 Author Share #3 Posted December 13, 2006 Brian, I have the M8, B+W 486 IR cut filters, SG card, daylight balanced 5000K lighting with tent for product photography, White balance cards, and the following lenses: 28 Cron ASPH coded, 35 Lux ASPH coded, 50 Lux ASPH coded, 75 Cron ASPH coded, 28/35/50 Tri-Elmar coded. If other lenses are important, Guy M. is local and I'm sure would loan me a lens for a day to take the shots together. Describe for me how you want the shots set-up and I would be happy to send you DNG files. I am completely clueless on what you need to develop a profile, so please let me know ISO, aperature, lens, amount to fill the frame if vignetting is important, and whether you want the lens coding enabled. Best, Ray The #1 critical issue for profiling is that the lighting be even across the color target with no shadows, relections or color casts from nearby objects present on the chart. Ideally the background should be neutral (gray) and brightly color objects should not be placed around the chart. For a general purpose profile a light source that is full spectrum and close to daylight color temperature (around 5000K) generally works best. To avoid lens aberrations it is best not to shoot wide open. Lens coding should be enabled. To ensure even lighting across the target the lens choice and shot setup should be chosen to minimize vignetting as much as possible. I would not try to push the chart out to fill the whole frame in order to avoid vignetting and other lens distortions which may be more present near the edges, leave some "breathing" room around the edges with the chart centered in the frame as best as possible. ISO should be set to 160 to avoid color noise. The Color Checker SG chart has white patches around the outside that can be used to check how even the lighting is across the frame, these white patches should roughly fall around 242 in sRGB space and should show similar readings from the left to right columns and in the top and bottom rows. The closer the better, but in some cases I am able to get decent results if there is say a some consistent top to bottom or left to right fall off which I can easily correct in RAW processing. It's often a good idea to shoot an exposure series, say maybe 5 shots from -2/3 to +2/3. A standard gray card shot under the same lighting and setup can be helpful with checking gray balance and/or gray scale reference charts (Kodak Q-13 or Q-14, Stouffer) can be beneficial for tone curve adjustments as the Color Checkers basically only have 6 gray steps. I can provide temporary access to my FTP server for uploading files, contact me by email if you're interested. Brian Griffith Iridient Digital Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted December 13, 2006 Share #4 Posted December 13, 2006 Ray you and i can do it together. I have everything except the damn SG card or i would have done it already. Brian i know these are tough to shoot i have a full line of profoto's also besides what Ray and also almost every latest M lens. Link to post Share on other sites More sharing options...
Brian Griffith Posted December 13, 2006 Author Share #5 Posted December 13, 2006 Ray you and i can do it together. I have everything except the damn SG card or i would have done it already. Brian i know these are tough to shoot i have a full line of profoto's also besides what Ray and also almost every latest M lens. Hi Guy, I'll gladly take whatever reference shots I can get. To a certain degree the more different combinations the better the chance to get a good overall feel for the color rendering. In theory each lens and light source is going to be just a bit different, but with a decent gray balance hopefully not radically so. If you want to shoot several different lenses and several different light sources that's great, but I can't promise I'll make custom profiles for all of them. The primary goal here is to hopefully get one good general purpose profile for use without the IR cut and a 2nd general purpose profile for use with the IR filter. I would recommend shooting each setup you do both with and without the IR cut filter if possible. Brian Griffith Iridient Digital Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted December 13, 2006 Share #6 Posted December 13, 2006 Brian i certainly can give you anything out of the Yosemite thread i shot for sure. Just let me know which ones. There mostly all shot with the IR filter. Just a FYI lately in Raw developer i have lowered the kelvin about 500 degrees and backed off to -5 on saturation seems to help. I did all the B&W work in raw developer , great setup for that Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted December 13, 2006 Share #7 Posted December 13, 2006 Advertisement (gone after registration) Brian do you have a M8 by chance and were are you located. Link to post Share on other sites More sharing options...
drjon Posted December 13, 2006 Share #8 Posted December 13, 2006 I've made available a couple test settings files for RAW Developer which use a new camera ICC profile for the M8. A zipped folder containing 2 RAW Developer settings files can be found here:http://www.iridientdigital.com/downloads/LeicaM8_BG_ProfilingTests.zip The "rdsf" settings files can be loaded into RAW Developer by first opening an image and then double clicking the settings file or by clicking the "Load" button found near the top of the Settings window. These are preliminary test settings and may or may not give good results over a wide range of shooting conditions. I'm interested in receiving feedback from M8 users. The camera ICC profile used by these settings was created using a Color Checker SG chart shot under studio lighting without an IR cut filter. I have not received any color chart reference files for the M8 that have been shot with an IR cut filter, but hopefully will be getting some soon. These settings are designed for use without an IR filter, however some adjustment of the white balance color correction adjustment (approx +6 to +10 towards magenta) may give OK results in some cases when an IR cut filter has been used. No effort has been made with this camera profile to correct for potential IR black issues. If you are looking for a "black fix" profile this is not it. Also note that the camera tone curves used in these files is specifically designed for use with the embedded ICC profile and may not give good results when used with other ICC profles. Thanks, Brian Griffith Iridient Digital Brian, thanks for the new profiles. I tried them on some indoor shots taken with the 24mm 2.8 with UV filter, 640 iso. They seemed washed out with these new profiles. But the earlier stdtonecurve with 'Auto2' seems fine. Two attached - one via RD, one via CS2 and using the JHR-lowsat curve. Beware, I am no expert here. Via RD Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Via CS2 Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! Via CS2 ' data-webShareUrl='https://www.l-camera-forum.com/topic/11237-new-test-m8-profile-and-settings-for-raw-developer/?do=findComment&comment=117091'>More sharing options...
harmsr Posted December 13, 2006 Share #9 Posted December 13, 2006 Brian, I would be happy to help get this moving. I'll call Guy tomorrow and we can coordinate shooting with my lights and his with several lenses, to try and give you the best information to work with. I also have the Kodak Gray scale chart. Once we have the files in hand, I'll email you so that we can upload them to you. Best, Ray Link to post Share on other sites More sharing options...
Brian Griffith Posted December 13, 2006 Author Share #10 Posted December 13, 2006 Brian do you have a M8 by chance and were are you located. Unfortunately I don't have my own M8 at this time. I'm located in Monterey, CA (a couple hours south of San Francisco). Brian Griffith Iridient Digital Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted December 13, 2006 Share #11 Posted December 13, 2006 How about a demo unit from Sean at Camera West. Link to post Share on other sites More sharing options...
Brian Griffith Posted December 13, 2006 Author Share #12 Posted December 13, 2006 How about a demo unit from Sean at Camera West. With the short supply of M8s I didn't really expect Camera West to have any demos sitting around on the shelf, haven't checked into this option yet though. Do you know if he actually has a demo available? Might be worth looking into... Brian Griffith Iridient Digital Link to post Share on other sites More sharing options...
harmsr Posted December 29, 2006 Share #13 Posted December 29, 2006 Brian, I took the photos you discussed on the forum here, of a WB card, Kodak Gray Scale Card, and SG Color Checker card. They are with a new "fixed" M8, 50 Lux ASPH, lens coding enabled, ISO 160, B+W 486 filter, 2/3 frame fill, manual WB to card, series of 5 exposures for Kodak gray card and series of 5 exposures for SG card (-2/3, -1/3, 0, +1/3, +2/3), lighting works out to a WB of 4500 +32 tint in ACR 3.6, and the lighting is very close to even around the SG (checking with the eye dropper). Please email me at rayharms"at"cox.net relative to uploading these to your FTP site. Best, Ray Harms Link to post Share on other sites More sharing options...
harmsr Posted December 29, 2006 Share #14 Posted December 29, 2006 Brian, I also sent you a PM, as you do not have your email address turned on here. Ray Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted December 30, 2006 Share #15 Posted December 30, 2006 With the short supply of M8s I didn't really expect Camera West to have any demos sitting around on the shelf, haven't checked into this option yet though. Do you know if he actually has a demo available? Might be worth looking into... Brian Griffith Iridient Digital Brian , Chuck sent me a e-mail and i know both of you have been working on this but if you need a camera . I can call Sean at CW and see what i can swing there or from another source Link to post Share on other sites More sharing options...
Brian Griffith Posted December 30, 2006 Author Share #16 Posted December 30, 2006 Brian , Chuck sent me a e-mail and i know both of you have been working on this but if you need a camera . I can call Sean at CW and see what i can swing there or from another source Chuck has recently sent me a very nicely setup shot of a ColorCheckerDC chart (without IR filter I believe) which seems to be working really well for profiling. Folks here are welcome to try out my recent settings and profiles with RAW Developer and offer feedback as well, I've made these available for download here: http://www.iridientdigital.com/downloads/LeicaM8_ColorCheckerDC_SettingsProfiles.zip The RAW Developer "rdsf" settings files in this folder can be opened by clicking the "Load..." button found near the top of the Settings window in RAW Developer or if you have an image opened in RD the "rdsf" files can simply be double clicked in the Finder and will then load. The profile files themselves do not need to be installed into the system ColorSync folders unless you want to use them with your own previously setup custom settings. The "RDv162 Leica M8 DefaultBeta2.rdsf" settings file incorporates a slight contrast boost to the camera tone curve and is likely to become the basis for a new M8 default, the 2 others have flat (linear) camera tone curves for baseline testing. I've sent Ray FTP info by email for uploading his images shot with the IR filter today as well so this should keep me busy for a while and hopefully will be enough to really get some good color setups for the M8 both with the B+W filter and without, at least until the official Leica IR filters begin shipping. I was down at Camera West last week doing some year end shopping and they did have an M8 in the store (but no IR filters at that time) so if necessary I may be able to get them to let me shoot some calibration shots as well. However, I think the latest chart I have from Chuck is as good or better than anything I could shoot myself. Brian Griffith Iridient Digital Link to post Share on other sites More sharing options...
Guest guy_mancuso Posted December 30, 2006 Share #17 Posted December 30, 2006 Brian i have a brand new 62mm sitting here that you can use just say the word and i will ship it . Tell Sean at camera West you are working with me and if he has a loaner i am sure he would lend it too you. Some people do like me:D Link to post Share on other sites More sharing options...
harmsr Posted December 30, 2006 Share #18 Posted December 30, 2006 Brian, I just uploaded the files to your FTP site. Email me to let me know how they work or if you need any adjustments and re-shoots made. Best, Ray Link to post Share on other sites More sharing options...
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