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Month: July 2019

Rubber and Spiked Foot Damping on the Jobu Killarney

July 29, 2019July 29, 2019 - David Berryrieser - Leave a Comment

Every now and then we learn something when it isn’t expected.  This just happened to when testing the stiffness and damping of the  Jobu Design Killarney tripod.  The Killarney has a unique design for the feet.  Instead of feet that screw in via a standard 3/8″ thread, a solid metal spike is glued to the […]

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Sharpness Loss from not Using a Cable Release

July 23, 2019August 3, 2019 - David Berryrieser - Leave a Comment

Conventional wisdom has long been to use a cable release when shooting off of a tripod to eliminate any movement of the camera caused from physically pressing the shutter.  I agree with this wisdom, but needed to put it to a quantitative test. For this test, I placed the Fuji GFX and 120mm GF lens […]

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Handheld Image Sharpness vs. Shutter Speed

July 21, 2019 - David Berryrieser - Leave a Comment

As a tripod blog, we want to establish under what conditions a tripod is even necessary.  Conventional wisdom is that sharp images can be obtained in handheld shooting down to roughly 1/focal length in shutter speed.  I want to put that to the test using a high resolution camera, the best lenses, and a quantifiable […]

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Torque from Handling a Camera

July 17, 2019 - David Berryrieser - Leave a Comment

We have been focusing on the forces that wind pressure places on the camera, but wind is far from the only external force that acts on a camera.  In this post we are going to look at the amount of torque placed on the camera from handling the controls and pressing the shutter button.  We […]

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Torque Tests for 15, 10, 6 MPH Wind Speeds

July 6, 2019 - David Berryrieser - Leave a Comment

In the previous post, I detailed the methodology for testing how much torque wind places on different camera and lens combinations.  I used a leaf blower mounted on a tripod and an anemometer to measure the exact wind speed being delivered.  That post only contained data for a 20 MPH wind speed.  Here, I repeat […]

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Lab Test on Wind Induced Torque

July 5, 2019July 5, 2019 - David Berryrieser - Leave a Comment

Understanding how much torque is put onto cameras during shooting conditions is the last piece of the puzzle towards understanding how much tripod stiffness is necessary.  Previously we had looked at the amount of torque placed on the GFX cameras under real world wind conditions.  Those results were useful, but the variance in real world […]

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3D Printing the Edelkrone Ortak Flextilt Head

July 4, 2019July 4, 2019 - David Berryrieser - Leave a Comment

Edelkrone, the maker of video motion and support gear, has launched a line of 3D printable versions of their products, known as Ortak.  Edelkrone will manufacture the critical parts and ship them to you as a kit, letting you 3D print the rest.  The first of these products is a version of their popular Flextilt […]

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Recent Posts

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  • Earth’s Rotation Limits IBIS Performance to 6.3 Stops
  • Head Weight Ratings Are Useless
  • Tripod Weight Ratings Are Meaningless
  • Camera + Lens Moment of Inertia
  • Moment of Inertia of Ballheads
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  • Measuring a Tripod’s Moment of Inertia

Recent Comments

  • Doug on Carbon Fiber vs. Aluminum Tripods
  • Alessandro on Tripod Performance vs Type of Foot on Hard Surface
  • Carbon Fiber Money Clips on Carbon Fiber vs. Aluminum Tripods
  • John Hemphill on Optimizing Ball Head Choice Part III: Searching for Generalization
  • Stanley Sizeler on Optimizing Ball Head Choice Part II: Best Choice for a Given Tripod

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