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This is a test shot of Bridgelux Vero 18 35W LED module, p/n BXRC-30H4000-F-03. This LED is advertised as having CRI 97 and 4000 lm luminous flux, which is equivalent to characteristics of 150W halogen lamp. Color temperature should be about 3000K.
This photo was taken in complete darkness without any optics covering LED module. Paper with pastel swatches was located in about 100mm from the module and set at 45º to its axis. Camera was set to 3200K color temperature and I had to close the diaphragm pretty much to get this paper properly exposed.
As you can see, color balance is a bit off the uniform in reds, but it's normal for high CRI LEDs because of wider "red hump" in their spectrum. At least, it's not worse than "orange hump" of halogens. 3000K seems to be real number too. Swatches are bright and equally lit, which is impossible with regular LEDs, having CRI 72 or even worse, which is equivalent to cheap fluorescent tubes.
To prevent overheating, I've used HP server CPU passive heatsink, p/n 409498-001 (bought used one from eBay for less than $10). It keeps the LED temperature just above the body temperature, so it's a kind of overhead, which I expected - this heatsink is intended for CPUs with TDP more than 65W. It means, I can use smaller cylindrical one with small (40mm) fan.
Testing Lamy ink for review. This is a test on an index card. See the notes for what the bits are. Next pic in the photostream is more testing - same stuff in a Moleskine, and the PigPog Smudge Test.
The plan is to do this same pattern with a few different inks, as a way of comparing. If anyone's got any ideas on better ways of doing it, I'd love to hear them.
testing out the new bees with a self portrait...
Strobist: AB800 1/8 power camera right thru Softbox
today i made flyers for my friends,the compagnie du voyage theater,an amateur troupe.
the first time time i do that,an excellent afternoon,hope my shots made them,and of course you,glad!
ps:if you have some job for me like this.....
Le test complet du tout premier objectif Tamron pour Nikon hybride en monture Z native, avec une plage focale 70-300 mm qui n'existe pas dans la gamme NIKKOR Z
Please don't use this image on websites, blogs or other media without my explicit permission. © froglewis . All rights reserved.
A few last minute low light tests using the Fuji X100s camera. A: Quietly in a dark live theatre show 'Little Mercy' B: a dark sunset catching much of the Western sunset opposite the Harbour Bridge from Walsh Bay wharfs.
This is the third test roll I run in my old Olympus Mju II, a camera that I used to be very fond of for some years, although the point-and-shoot made me a lazy photographer without any control of any parameters. After the first two test rolls I thought the visible issue on the right edge of the frame was a light leak. So I shot this roll with all the possible sources of light covered with black gaffing tape. Surprise, the problem is still there and even more pronounced and regular. I haven't got the camera with me now to investigate but it will probably have to be seen by a technician.
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Sebastian Loeb (FRA) World Rally Champion tests for Red Bull Racing.
Formula One Testing, Day One, Barcelona, Spain, 17 November 2008.
Konstantin Belchev @ Ivet Fashion
test
photography by Delcho D & Zahary Popov
Sofia, Bulgaria
2013
#ivetfashion #ivet #models #test
The Capistrano Test Site was owned by TRW of Redondo Beach until TRW was absorbed by Northrop Grumman in 2002.
Repository: San Diego Air and Space Museum Archive
My new test-setup for lens-testing. Read more about this at Camera Labs
Watch out: This is only a 2792 x 3956 crop from the full frame, covering approx. a quarter of the sensor.
Lens test to check for infrared hotspotting with the
Fujifilm Fujinon XF 18-135/3.5-5.6 R LM OIS WR
Images shot at various focal lenghts and apertures.
The test showed no hotspotting, and wad performed to add to my previous tests of my other Fujinon lenses.
My other tests can be seen here: dervishimages.wordpress.com/2015/06/07/fuji-lens-testing-...
I noticed the shots from the D200 tend to be a tad bit under, and in the LCD they look a bit on the yellowish side. But once developed, the AWD works like a charm... way better than fumbling with what I've gotten used to. Oh and the Matrix Metering appears to be actually working to my advantage for the first time in my life...
This is developed with Nikon Editor, auto contrast w/o color change, low sharpening, no noise removal, (stamped in PS to remove dust on lens).
Photographer: Valery Shpak
Instagram: @valeryshpakphotography
weddings, family photos, corporate portraits, commercials and real estate aerial drone and digital photos and video
New York, Miami, Europe, Worldwide.
I sent Daisy to the kitchen for some selfie-practice on New Years Day. I think this must be the testing phase. 😉
Quick test which hints at cheap filters being a pain for night shots. I might test it on a day shoot before giving the world a chance to buy it off me on ebay.
I must point out the shortcomings of this test. Only one sample of each filter was used, and only tested on one lens for one exposure, and clearly the better performances were in different lighting conditions (though I think flare and ghosting would be more likely with a darker background/higher contrast).
Nathan Hyde, a biological technician, prepares a sample of fish food to test in the Nitrogen Analyzer, which reads the percent nitrogen of each sample, which then calculates the protein level by running a multiplication formula.
Longview, WA/ February 2011
Photo credit- Tess McBride/USFWS
Didn't know my test shots for my new water proof camera will become a tribute to Village People's IN THE NAVY :XD: I had no idea that an US navy battle ship visiting my city without any notice! Of cos I don't mind that :XD: cos I love those hunky soldier hunks ;)
The funny thing is Bobby Han (brownie) and Bob Hector (blonde) are both set as knight/general of the Atlantis Empire, so, of cos they r both IN THE NAVY :XD: ❤