subfile autocollimator clasp riots petitioned appetites withstood implicates
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#polarefffect #videoscan #generativeart #mirromania #imagefiltering #mirroreffect #filtermania #abstractart #algorithmicart #imageprocessing
For more images visit https://www.instagram.com/usartwork
#polarefffect #videoscan #generativeart #mirromania #imagefiltering #mirroreffect #filtermania #abstractart #algorithmicart #imageprocessing
December 10, 2025 at 9:01 PM
subfile autocollimator clasp riots petitioned appetites withstood implicates
For more images visit https://www.instagram.com/usartwork
#polarefffect #videoscan #generativeart #mirromania #imagefiltering #mirroreffect #filtermania #abstractart #algorithmicart #imageprocessing
For more images visit https://www.instagram.com/usartwork
#polarefffect #videoscan #generativeart #mirromania #imagefiltering #mirroreffect #filtermania #abstractart #algorithmicart #imageprocessing
The micrometer on the autocollimator will let you measure any errors so they can be corrected. As a double check, while the camera midrib was still on the fixture plate, I put the camera on a tripod, set up a focus chart at several measured distances, and checked to see if the focus marks . . .
July 25, 2025 at 6:01 PM
The micrometer on the autocollimator will let you measure any errors so they can be corrected. As a double check, while the camera midrib was still on the fixture plate, I put the camera on a tripod, set up a focus chart at several measured distances, and checked to see if the focus marks . . .
I don’t know if my method is the best one, but I was taught to check and adjust the ground glasses using an autocollimator, a first surface mirror machined to fit at the film plane, and a carefully collimated lens as a master.
July 25, 2025 at 6:01 PM
I don’t know if my method is the best one, but I was taught to check and adjust the ground glasses using an autocollimator, a first surface mirror machined to fit at the film plane, and a carefully collimated lens as a master.
It’s been a few weeks since my last update on the ARRI 35 BL 2. Since then, the Mitchell FC Fox Grandeur and VistaVision Butterfly cameras have both gone on to wonderful new homes. ln.run/yL-XS #CinemaGear #arri #cameras
July 25, 2025 at 6:01 PM
It’s been a few weeks since my last update on the ARRI 35 BL 2. Since then, the Mitchell FC Fox Grandeur and VistaVision Butterfly cameras have both gone on to wonderful new homes. ln.run/yL-XS #CinemaGear #arri #cameras
For actual tools, I find white index cards to be the most useful and have them scattered everywhere. Next, a means to view back reflections, like a card with a hole in it is incredibly useful. For finding foci, I use an autocollimator, and I use a shear plate for routine collimation.
June 3, 2025 at 8:57 AM
For actual tools, I find white index cards to be the most useful and have them scattered everywhere. Next, a means to view back reflections, like a card with a hole in it is incredibly useful. For finding foci, I use an autocollimator, and I use a shear plate for routine collimation.
Ghetto #autocollimator made out of the junk the neuroscience nerds leave around. Now that I have it working I'll try a lens with a huge focal length.
May 21, 2025 at 9:26 PM
Ghetto #autocollimator made out of the junk the neuroscience nerds leave around. Now that I have it working I'll try a lens with a huge focal length.
Ralf D. Geckeler et al.: Self-calibration strategies for reducing systematic slope measurement errors of autocollimators in deflectometric profilometry ##OpticalMetrology##Autocollimator@advlightsource@BerkeleyLab...##IUCrhttps://journals.iucr.org/paper?S1600577524003552
Self-calibration strategies for reducing systematic slope measurement errors of autocollimators in deflectometric profilometry
The beam shaping optics of synchrotrons and X-ray free-electron lasers are routinely measured using deflectometric profilometers, which use autocollimators to evaluate the surface slope from the displacement of a reticle image on a detector. Here, novel strategies to reduce systematic measurement errors by using a set of overlapping images of the reticle obtained at different positions on the detector, which can reduce the systematic errors by up to a factor of four to five without recourse to external measurements, are discussed.
journals.iucr.org
June 6, 2024 at 12:00 AM
Ralf D. Geckeler et al.: Self-calibration strategies for reducing systematic slope measurement errors of autocollimators in deflectometric profilometry ##OpticalMetrology##Autocollimator@advlightsource@BerkeleyLab...##IUCrhttps://journals.iucr.org/paper?S1600577524003552
Apparently, it is easy to mix up "collimator" and "autocollimator" in conversation, until you see how different they are.
November 19, 2024 at 5:16 AM
Apparently, it is easy to mix up "collimator" and "autocollimator" in conversation, until you see how different they are.