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Sneaker Zoom vs A Zoom Lens

https://youtu.be/Y2gTSjoEExc Everyone by now has heard the sage old advice told to every young photographer without a zoom lens.  Use your feet.  Or Sneaker Zoom, as most of us old timers call it.  Sneaker Zoom means getting closer or farther away from your subject to effectively change...

https://youtu.be/Y2gTSjoEExc ...

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Canon 5DS Teardown

When Lensrentals.com first got the first Canon 5Ds and 5D sr cameras in stock, Aaron and I immediately started screaming that we wanted to take one apart. It turns out we received enough 5Ds cameras to let us have a day with one to do just that. Of course, we don't...

When Lensrentals.com first got...

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Sigma 24-35mm F2 DG HSM Art Lens

RONKONKOMA, NY — June 19, 2015 – Sigma Corporation of America, a leading DSLR lens and camera manufacturer, today announced the Sigma 24-35mm F2 DG HSM Art lens, the market’s first full-frame zoom lens offering a wide-open, constant aperture of F2 throughout the zoom range. Pricing and availability...

RONKONKOMA, NY — June 19, 2015...

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Sony 24-70 f/4 Teardown

Those of you who read our teardowns know that we commonly are tearing down Canon or Nikon mount lenses. The reasons are pretty simple and it basically comes down to the fact that we have a lot more of those lenses. If we have a...

Those of you who read our tear...

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Dawg Schidt in the Park

Dog Schidt In The Park from Andrew Reid on Vimeo. Shot on Schidt.  An experimental test of Schidt Optics FF58 PL mount on Olympus OM-D E-M1, entirely handheld.  Full review of the Dog Schidt Optiks Flare Factory 58 (PL Mount) is here: http://www.eoshd.com/2015/02/dog-schidt-optiks-ff58-flare-factory-58-pl-mount-review/ As Andrew Reid says in his excellent review linked above, "In...

Dog Schidt In The Park fro...

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Sigma 24mm F1.4 DG HSM Art Lens Announced

Yesterday, just in time for tomorrow's start of the CP+ Camera and Photo Imaging Show 2015  in Yokohama, Japan,  Sigma Corporation of America announced the new Sigma 24mm F1.4 DG HSM Art lens, the ninth Global Vision lens to join the company’s excellent Art lens line-up. [caption id="attachment_49993" align="aligncenter" width="950"] Sigma 24mm F/1.4 DG HSM...

Yesterday, just in time for to...

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The Difference Between F Stops and T Stops

Matt Granger, from ThatNikonGuy.Com digs into the difference between F Stops and T Stops in this short presentation.  Just what is that difference, and is that difference important to us, you mite ask? [caption id="" align="aligncenter" width="320"] Diagram of decreasing apertures, that is, increasing f-numbers, in one-stop increments;...

Matt Granger, from ThatNikon...

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How To Test For A Decentered Lens

What is Decentering and What Does it Do? Strictly speaking, decentering would involve one or more of the lens elements being off of the central axis of the lens. This would prevent the curved surfaces of the lens from bending the light properly. In severe cases...

What is Decentering and What...

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