ISF Calibration for Video Displays

Les Holt

ISF Calibrator
HoltMods Audio and Video Consulting
5820 Stoneridge Mall Road, Suite 100
Pleasanton, CA94588

Phone: (925) 828 2958




Serving the San Francisco, California Bay Area and beyond

Including the San Francisco East Bay Area


HoltMods Offers ISF Certified Video Calibration Services

for LCD, LCOS, Plasma, DLP, CRT, HDTV, DTV, and DVD



        Calibrator certified by the Imaging Science Foundation (ISF):††

        ISF Calibrator with over 25 years experience in audio/video systems:

†††† designing, building, modifying and calibrating

        Designer and manufacturer of the ACKDACô analog to digital converter and digital output conversion kits

        Founder and owner of HoltModsô, audio and video equipment provider (

        ISF Calibrator with highest grade Extra Class Amateur Radio license

        Authorized dealer/installer for most major brands of video and audio equipment (follow this link for more information)

        Quoted by magazine reviewer

My approach to video and audio calibration:

I will maximize the performance of your display, whether itís CRT, plasma, DLP, LCD, or LCOS, and will extract the best image from all source material, including DVD, HDTV, DTV and NTSC.I offer ISF certified calibrations on all manufacturerís displays, including Sony, Panasonic, Samsung, JVC, Sharp, Mitsubishi, SIM, Fujitsu, and NEC.I own and have special expertise with Sony, Panasonic,
Hitachi, and Toshiba.I am an authorized dealer and installer for most major brands, and can help supply your audio and video requirements with the best solutions available.I consult on audio and video systemsí acquisition, integration, setup, ISF calibration and performance, home theater PC (HTPC) setup, and high definition television (HDTV) reception issues and solutions.Available for ISF calibrations in the entire San Francisco Bay Area and, on request, beyond.


My goal is to extract the highest level of performance from your system, taking into account your individual viewing and listening habits and preferences, as well as the capabilities of your display.To achieve the best ISF calibration of gray scale, I use two independent references: objective equipment measurements with a colorimeter (the Progressive Laboratories CA-6X and CA-5X), and direct visual observations using an optical comparator (the AV Standards Visual Standard TVS Pro).


Iím methodical and detail oriented, and take my time to get things right.I talk to a client before, during and after the calibration to customize the set up for his viewing and listening habits.I donít sell anything to ISF calibration clients unless requested, so I can provide objective advice free of any conflict of interest.


I provide free initial consultations by telephone.Call me and we can discuss how we can enhance your home theater experience: (925) 828-2958.


Equipment used for ISF Calibration includes:


        Progressive Laboratories CA-5 colorimeter (latest release)

        Progressive Laboratories CA-6X colorimeter

        AV Standards The Visual Standard TVS Pro color comparator

        Dell Inspiron 8600 laptop with custom calibration files

        Avcom PSA37D spectrum analyzer for HDTV reception analysis

        Goldstar OS2090G oscilloscope

        The Gryphon Exorcist audio oscillator

        Customized sound level meter

        Avia, Video Essentials and Digital Video Essentials calibration DVDís and LDís


Services offered include:

        Grey scale calibration (using two independent references)

        Color decoder alignment (to the extent enabled by the display)

        Primary and secondary color gamut adjustments (if enabled)

        Proper adjustment of contrast (white level)

        Proper adjustment of brightness (black level)

        Geometry correction

        Proper adjustment of electronic focus

        Proper adjustment of mechanical (optical) focus

        Analysis of room setup and conditions from both visual and auditory perspectives

        Consultation re best choice of equipment for budget and viewing/listening habits

        Optimization of equipment and set up

        Proper alignment of multi-channel sound systems

        Recommended test DVDís, CDís, SACDís, DVD-Aís

        Recommendations comparing cable TV with satellite TV versus over-the-air (OTA) reception

        Feasiblity analysis of over-the-air (OTA) reception ofHDTV


Geographic areas covered include:

       San Francisco Bay Area

       East Bay Area


       South Bay: San Jose

       San Francisco


       All Bay Area Counties, including Alameda, Contra Costa, San Mateo, Santa Clara, San Francisco, Napa, Solano, Sonoma, San Joaquin

       Cities include Pleasanton, San Ramon, Dublin, Livermore, Danville, Alamo, Walnut Creek, Pleasant Hill, Concord, Clayton, Lafayette, Orinda, Moraga, Berkeley, Oakland, Piedmont, Castro Valley, Fremont, Hayward, Menlo Park, Palo Alto, Portola Valley, Hillsborough, Woodside, Mountain View, San Mateo, Burlingame, San Jose, Cupertino, Los Altos, Los Gatos, Saratoga


ISF Video Calibrations

Les Holt

ISF Certified Video Calibrator
HoltMods Audio and Video Consulting
5820 Stoneridge Mall Road, Suite 100
Pleasanton, CA94588

Phone: (925) 828 2958





Copyright HoltMods 2007; All Rights Reserved

ACKDAC and HoltMods are trademarks of HoltMods