View allAll Photos Tagged Calibration
Soldiers from 2nd Battalion, 12th Cavalry Regiment, 1st Brigade Combat Team, 1st Cavalry Division conduct calibration fire at Grafenwoehr Training Area, Germany, Oct. 1. (U.S. Army photo by Capt. John Farmer, 1st BCT, 1st CD Public Affairs).
Calibration of the multitouch wall at the Monterey Bay Aquarium. The exhibit uses two better than HD resolution projectors. Ideum worked with Aquarium in designing this large-scale interactive exhibit.
You can learn more about the construction of this exhibit on the Ideum Blog
Photo courtesy of Linsday Digital:
SOUTH CHINA SEA (Sept. 6, 2021) Aviation Electronics Technician 2nd Class Sam Ferrell, a native of Columbus, Ohio, calibrates a stroboscope in the calibration lab aboard Nimitz-class aircraft carrier USS Carl Vinson (CVN 70). Carl Vinson Carrier Strike Group is on a scheduled deployment in the U.S. 7th Fleet to enhance interoperability with allies and partners while serving as a ready-response force in support of a free and open Indo-Pacific region. (U.S. Navy photo by Mass Communication Specialist 3rd Class Jeff D. Kempton)
PictionID:54639767 - Catalog:14_034926 - Title:GD/Astronautics Details: Gas Flow Lab; Field Calibration Engineer Date: 04/07/1961 - Filename:14_034926.tif - ---- Images from the Convair/General Dynamics Astronautics Atlas Negative Collection. The processing, cataloging and digitization of these images has been made possible by a generous National Historical Publications and Records grant from the National Archives and Records Administration---Please Tag these images so that the information can be permanently stored with the digital file.---Repository: San Diego Air and Space Museum
FORT IRWIN, Calif. - U.S. Army Soldiers of 82nd Field Artillery Regiment, 3rd Armored Brigade Combat Team, 1st Cavalry Division, clean carbon buildup from the barrel of their M109A6 Paladin following live fire calibration during Decisive Action Rotation 15-07 at the National Training Center here, April 23, 2015. The decisive action rotation training environment was developed to create a common training scenario for use throughout the Army. (U.S. Army photo by Spc. Ashley Marble, Operations Group, National Training Center)
At its closest distance of about twelve feet my Sony A350's autofocus reliably backfocussed the razor thin sharp focus DoF of this very critical lens. After making sure that there was some backfocus on all my lenses, although with most it didn't matter since it was inside the DoF, I decided to adjust for optimum performance with this most critical lens. I adjusted the position of the AF sensor plane with the allen bolts around the tripod bolt hole until the AF was getting accurate focus at twelve feet.
But had this improved distant focus? The problem with distant focus with this lens is that atmospheric conditions often degrade the image. If it's cool and misty the ISO may have to be raised to noisy levels, whereas if it's warm and sunny hot air convection currents may distort it.
This is a photograph of the clock tower of the Balmoral Hotel beside Waverley Station taken from the high point of the Botanic Gardens on a cool misty day. In order to show the detailed resolution the most clearly in all its horrid detail this tiny crop from the image has been upsized nearly four times linearly. That has the effect of making the medium sized image close to the native resolution.
This is the image before adjusting out the backfocus. For comparison the image after can be seen here.
Original DSC06194RWC
Today is my screen calibration day, with the Spyder I try to give the 2 screens the same neutral colors. But it is not happening as I would like as you can see. The left is the Photoshop PC. The right one is the gaming PC.
My iiyama CRT's red gun became intermittent so I stripped it down, removed then reseated all the connectors I could get to then blew out the dust for good measure. This fixed the problem for a couple of days. Getting just a wee bit peeved with a ghastly cyan cast intermittently colouring my on-line world, I poured over reviews & prices of a potential replacement. I have to admit to not being a fan of LCD monitors so decided I had to buy a decent one & placed a Samsung T200 2mS 20" Rose Black TFT model at the top of my list then bought one last Saturday from PC World in Guildford.
My 3 year old fanless nVidia FX 5200 AGP graphics card thankfully supports 1680x1050 & has both analogue & digital outputs.
The fun then started after connecting the DVI output to the new monitor - it kept blanking for some reason. The rubber feet on the base aren't thick enough to raise the whole above the baseplate screw heads so I ended up badly scoring my computer desk which did little to kill my bad humour. I then proceeded to look at my photos & felt very sick, or rather very, very sick indeed - most of the originals look OK but the majority of my edits look washed out. I now face the prospect of re-editing a couple of thousand photographs to put some black back into them :(
I'm now running the new monitor from the analogue output that no longer blanks, so not only are most of my photos incorrectly edited, my new monitor has probably got a faulty DVI input as well.
The moral to this tale is to check your monitor calibration fairly regularly!!!
Now I know why my photos looked better in-camera or my phone's display & even on cheap LCDs monitors which weren't as bad as I thought they were!
Although I checked histogram settings - most of my editing was done by eye on a badly setup or faulty monitor!
I'm going out to get very drunk!
I used the supplied software & this utility:
to setup my new monitor.
I suppose most people are quite used to TFTs by now & for general use, they are great but for photo-editing, I'm less sure that most are up to the job. My assertion that jpgs favour darker tones goes out of the window as my new monitor shows a far greater range of midtone to to blacks. My beef with TFTs is the tones depend on viewing angle & the colour shifts across the screen. Quite how much one has to pay for consistency, I dread to think but £200 was quite enough for me at this time!
Gossen Lunasix 3 light meter - internal view; view of the solder side side of the PCB (meter removed)
TBM spray plane at airport with plastic bags over nozzles to check calibration for 13 oz. Malathion LVC per acre. Bureau of Land Management western spruce budworm spray project. Dillon, Montana.
Photo by: Unknown
Date: July 1966
Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection.
Source: FHP slide collection; Region Office; Portland, Oregon
Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth
Calibration of a fertilizer bucket used for MCH flake application. Lake Wenatchee State Airport, Washington.
Photo by: Connie Mehmel
Date: May 8, 2015
Photo credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection, Wenatchee Service Center.
Source: Connie Mehmel collection. Wenatchee, Washington.
Note: MCH is an anti-aggregation pheromone used to protect trees from attack by the Douglas-fir beetle.
For more information see:
Ross, Darrell W., Kenneth Edward Gibson, and Gary E. Daterman. 2015. Using MCH to protect trees and stands from Douglas-fir beetle infestation. Forest Health Technology Enterprise Team, US Department of Agriculture, Forest Service.
www.fs.fed.us/foresthealth/technology/pdfs/MCH_handbook_1...
Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth
Calibration test for the Tribute in Light from the Brooklyn Heights Promenade in September 2017.
My Instagram
My Zorki 4K camera and its Jupiter-8 1:2 f=50 mm normal lens clearly needed a calibration of its range finder. It is a very easy task for the infinite, acting on a small adjustment screw located at the front, left to the finder window. This film is a test of the focusing capability now much more efficient. There still a tiny shift that I will try to optimize soon following the known protocols (tomtiger.home.xs4all.nl/zenrep/calibration.html)
The camera was loaded with a CineStill Double XX (cine film Eastman 5222) exposed for 200 ISO using a Minolta Autometer III lightmeter fitted with a 10° viewfinder for selective measuring privileging the shadows. After exposure the film was processed using Tetenal Ultrafin developer at dilution 1+20 for 12 min and 20°C.
Rue Saint-Dié, September 9, 2022
69004 Lyon
France
After process the film was digitalized using a Sony A7 body and a Minolta Slide Duplicator with a Minolta Auto Bellows III with a lens Minolta Bellow Macro Rokkor 50mm f/3.5.
About the camera :
This camera was manufactured in 1977 by KMZ company ( Красногорский механический завод, Krasnogorskiy Mechanicheskiy Zavod) located in the Moscow region. KMZ also manufactured the ZENIT SLR's among many other productions. Zorki 4K was produced between 1972 to 1978 and the previous Zorki models were inspired by the Leica II since 1949. This model 'Made in USSR" is branded in roman characters, intentionally for exportation. Other Zorki 4K were also branded in Cyrillic as "Зоркий". Zorki 4K was sold basically either with this Jupiter-8 lens 1:2 f=50mm or the Industar lens1:3.5 f=50mm. The Jupiter-8 is a Sonnar Zeiss optical formula and fits to the Zorki body using the screwing M39 Leica mount.
Its was sold to me in August 2022 from Austria with its original ever-ready leather bag, a front lens cap and a small shade hood accessory Minolta D42KA. The shade hood and filter of my Focaflex also fit to the Jupiter lens (Leica standard 42 mm filter)
FORT IRWIN, Calif. - U.S. Army Soldiers of 82nd Field Artillery Regiment, 3rd Armored Brigade Combat Team, 1st Cavalry Division, fire a 155mm artillery round for live fire calibration in a M109A6 Paladin during Decisive Action Rotation 15-07 at the National Training Center here, April 23, 2015. The decisive action rotation training environment was developed to create a common training scenario for use throughout the Army. (U.S. Army photo by Spc. Ashley Marble, Operations Group, National Training Center)
Pesticide sprayer calibration unit test
For more information on this and other resources, please visit extension.psu.edu/pesticide-education
Where trade names appear, no discrimination is intended, and no endorsement by
Penn State Cooperative Extension is implied.
Photos by Garo Goodrow, Multimedia Specialist
Penn State Pesticide Education Program
© The Pennsylvania State University 2014
Using a sacrificial blade to perform a rough calibration of the tool, ultimately bending it far beyond the normal working range. But hey, now I know I'm good to go if I ever need a fork with 100 mm of rake!
Charlie Schrader Patton (left) and Keith Sprengel at aerial survey Calibration and Conformity (C&C) training.
Photo by: Ben Smith
Date: June 26, 2012
Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection.
Source: Aerial Survey Program collection.
For geospatial data collected during annual aerial forest insect and disease detection surveys see: www.fs.usda.gov/detail/r6/forest-grasslandhealth/insects-...
For related historical program documentation see:
archive.org/details/AerialForestInsectAndDiseaseDetection...
Johnson, J. 2016. Aerial forest insect and disease detection surveys in Oregon and Washington 1947-2016: The survey. Gen. Tech. Rep. R6-FHP-GTR-0302. Portland, OR: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. 280 p.
Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth
GRUMMAN S-2 AIRCRAFT PARKED ON DOE'S AIRBORNE RADIOMETRIC CALIBRATION FACILITY AT WALKER FIELD.
THE PLANE'S EQUIPMENT IS BEING CALIBRATED OVER ONE OF FIVE CONCRETE PADS CONTAINING KNOWN QUANTITIES OF POTASSIUM, THORIUM AND URANIUM AT THIS FIELD NEAR GRAND JUNCTION, CO. THE AERIAL RADIOMETRIC SURVEY OF THE UNITED STATES IS BEING CONDUCTED BY GEOPHYSICAL SERVICE COMPANIES WHICH USE SENSITIVE GAMMA-SPECTROMETRY TECHNIQUES TO MEASURE LOW CONCENTRATIONS OF URANIUM, THORIUM, AND POTASSIUM FROM AN ALTITUDE OF 400 FEET. RADIO ELEMENT SIGNATURES RELATED TO URANIUM CONCENTRATIONS IN SPECIFIC ROCK TYPES IN A VARIETY OF DISTRICTS WITH DIFFERENT GEOLOGIC ENVIRONMENTS MAY BE USED TO INFER FAVOR ABILITY IN SIMILAR BUT UNEXPLORED AREAS. NURE IS A PROGRAM OF DOE'S GRAND JUNCTION OFFICE TO ACQUIRE AND COMPILE GEOLOGIC AND OTHER INFORMATION WITH WHICH TO ASSESS THE MAGNITUDE AND DISTRIBUTION OF URANIUM RESOURCES AND TO DETERMINE AREAS FAVORABLE FOR THE OCCURRENCE OF URANIUM IN THE UNITED STATES.
For more information or additional images, please contact 202-586-5251.
The calibration equipment used to run TIRS through its paces is in front, TIRS is hidden behind.
To read more go to: www.nasa.gov/topics/technology/features/tirs-thermal.html
Credit: NASA/Goddard Space Flight Center/Bill Hrybyk
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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Aerial observer Yolanda Barnett. Aerial survey Calibration and Conformity training.
Photo by: Unknown
Date: 2000
Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection.
Source: Aerial Survey Program collection.
For geospatial data collected during annual aerial forest insect and disease detection surveys see: www.fs.usda.gov/detail/r6/forest-grasslandhealth/insects-...
For related historic program documentation see:
archive.org/details/AerialForestInsectAndDiseaseDetection...
Johnson, J. 2016. Aerial forest insect and disease detection surveys in Oregon and Washington 1947-2016: The survey. Gen. Tech. Rep. R6-FHP-GTR-0302. Portland, OR: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. 280 p.
Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth
We were doing some color correction, and to get things right, we needed to put the 3D glasses on the color meter. Using masking tape, we got it done. Oh, we have alot of fun as technicians. These are REV 1 Dolby 3D Glasses.
FORT IRWIN, Calif. - U.S. Army Sgt. Jose Ruiz of 2nd Battalion, 82nd Field Artillery Regiment, 3rd Armored Brigade Combat Team, 1st Cavalry Division, prepares ammunition for live fire calibration in a Paladin M109A6 artillery system during Decisive Action Rotation 15-07 at the National Training Center here, April 23, 2015. The decisive action rotation training environment was developed to create a common training scenario for use throughout the Army. (U.S. Army photo by Spc. Ashley Marble, Operations Group, National Training Center)
This is a 'working plot' that needs more than a little explanation.
The plot here shows a number of spectra we have been discussing (the disulphide fluorescence in fluorite for a long time!).
I'll summarise the different plots in turn.
1. The black (Lamp-dark_sc) is a dark-subtracted observation from early June this year of the QH-lamp I use for transmission and calibration measurements - it is a simple 6 Euro lamp from IKEA with a metal reflector and a ground-glass diffuser. I use it behind an old iris diaphragm and use a high-quality (from Edmund Optics) neutral opal glass diffuser in front of the diaphragm (also in front of the Sun when I do my calibration). The spectrum is in counts (about 100ms exposure; note that all the other curves are flux calibrated in flux/nm ) and is divided by 490 in this plot (so less than 50,000 counts per channel - below saturation). This shows very clearly the etalon ripple that is characteristic of CCD detectors. Above about 800nm, it is also affected by the OH absorption in the optical fibre. The pixel-to-pixel response is quite smooth but there is a small glitch at 592nm that is now removed in my calibration (along with the big ripples and OH). This is a 600L/mm grating with a blaze in the visible. My aperture is 25µm circular.
2. The flux calibrated lamp observation from 1. above (Lamp-cal, purple) uses a flux calibration (No. 5) that I did in September 2012 (see the figure in my FMS article).
3. The red curve plotted on top of 2. is a computed Planck curve for 2780K scaled to the same peak flux as the the measurement. The difference between 2 and 3 reveals the residual etalon signature - although with a low amplitude <2% peak-to-peak and 0.6% RMS. This is shown, multiplied by a factor of 10 as:
4. the green curve oscillating around zero and showing the etalon fringes very clearly. The fact that these are not completely calibrated out could be due to: different spectrometer illumination caused by fibre position, different detector temperature, a small secular evolution of the detector over ~ 1 year or, something else...
5. The series of purple points is a trivially simple etalon model with a refractive index (n) which is wavelength independent and an etalon spacing of around 1-2µm (depending on n). In practice, of course, n will not be constant - which is why the points drift in phase.
6. The two cerussite curves (brown - 368nm diode, and pink - 404nm laser) are plotted to show how smooth these broad-band emissions can be (apart from a couple of weak REE peaks from the laser, notably at 643nm).
7. The orange curve is my dastardly fluorite that has the temerity to show the disulphide signature along with a few (not very strong) REE features. I showed last year that the ripples are seen as well with 368nm diode excitation. I made a new diode observation (light grey line) to confirm this - the fluorescence is weak. This shows that this ripple amplitude is WAY above any instrumental effects. There is also the evidence of the correlation with the hackmanite peaks.
8. Finally, I have overplotted hackmanite (368nm excitation, dashed purple line)) and sodalite (404nm laser excitation, light blue line) for comparison.