View allAll Photos Tagged Testing
Taking these little globetrotters around for a spin. There are quite a few tweaks that I have already made since I rendered this test. The bounce of the backpack and cinnamon buns will be much better in the final. I suppose I should go ahead and post my boards, huh?
Testing an AVR controlled triac based dimmer circuit. This test used lower voltages and isolated power supplies but the real thing will be partially mains connected. Control parts are optoisolated for safety.
Testing out FreeNAS 8 on an AMD APU E-350 with a Highpoint Rocket RAID 622 eSATA PCIe 2.0 card. Along with a Rosewill external eSATA expansion.
This is more of a technical/experimental post, and I'd like to get viewers' opinions of the resultant image quality and technique.
I've seen more and more people experimenting with digital infrared (IR) photography, so I've be curious to try it myself. Looking at the Digital Infrared group here on flickr, one person mentioned using a long exposure with an IR filter on an unmodified digital SLR. I knew my XTi had an IR blocker over the sensor, so I wasn't sure how this would turn out. I was pleasantly surprised to see the results be close to what seems to be near-IR photography, perhaps not true IR. Especially after running the RAW shot thru Photoshop with an IR b&w layer, it looks similar to what I've seen film IR shots look like.
Your thoughts? What are some of the ways these shots differ from IR or near-IR shots done on IR film or modified/IR-sensitive digital cameras?
Photos, top to bottom, left to right:
* color RAW "infrared" exposure
* b&w (with red "filter") in-camera JPG of the RAW shot
* RAW shot with Photoshop infrared b&w layer, red channel at -20 instead of -40
Technical information:
* Canon Digital Rebel XTi/400D (unmodified)
* Canon EF 28mm/2.8 lens
* Opteka Infrared filter (I think it corresponds to an R72 filter)
* late afternoon (approx 5:30pm) light in late Summer
* manual exposure: 30s at f/4, ISO 100
Testing Canon EOS R5
Testing Canon EOS R5
www.instagram.com/emilabumilad/
Testing intraocular pressure during community screening. NIGERIA
© Gideon Okorie CC BY-NC-SA 2.0
Published in: Community Eye Health Journal Vol. 34 No. 112 2021 www.cehjournal.org
My next RC plane will be the Pulse 125. A recommended modification is the addition of a second pushrod (joined to the first) so that both elevators are controlled. This is sample test with some coathanger wire, thin copper wire harvested from speaker cable, and a 30W soldering iron with rosin core solder... and PLENTY of flux.
EPCOT.
Walt Disney World Resort in Florida, March 2013.
Visit our website for loads of Disney Character pictures and information!
Testing focus at f32 to compensate for any errors. I'm really impressed with how sharp the Fujinon 125mm lens is! It seems to have a lot more contrast and sharpness than any other lens that I have used before. Time to try it out on proper film now.
[test only]
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© Donfer Lu (Taiwan) All rights reserved.
You may not use my photographs on any web page, publishing, storing, commercial or non-commercial, for profit or non-profit, without my written permission.
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Test of Yongnuo RF-603 from 2 city blocks away. The VAL (Voice Activated Lightstand) is firing the camera which is in turn firing the flashes.
This is a test cake for my nephew's Carousel Cake at the end of the month. Need to make the round part of the cake double in height, so that I can fit some carousel horses. But other than that...it was easy to make!! :D
Nico Hulkenberg (GER) Sahara Force India F1 VJM07..
Formula One Testing, Bahrain Test One, Day One, Wednesday 19th February 2014. Sakhir, Bahrain.
Shot with Canon 580 thru white translucent umbrella as key light (captured brilliantly in the top left corner, ahem) at roughly 1/4 to 1/16 power at 24mm (didn't keep notes). Also used 430 camera right through a snoot at 105mm and about the same power as 580. First use of snoot; discovered size of patio too small to accommodate effective use of one, although the look in this pic is kind of cool (if unintended).
I'm testing out my brand new lense, a Nikkor 105 mm f/1.8. :)
Oh, this is, I believe taken @1.8 - maximum aperture, and I think it's perfectly usable, don't you think?