Category Canon's 18-135mm IS gets an STM Makeover | Lensrentals Blog

Lenses and Optics

Canon’s 18-135mm IS gets an STM Makeover

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So the usual happened today: I read in a couple of places that the Canon 18-135mm IS STM lens isn’t going to be available in the U. S. for a while. A few minutes later Tyler walks in my office with one, asking if I want to test it. Let me be clear where I’m […]

Lenses and Optics

Optically Adjusting a Lens

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I write a lot about the fact that every copy of a lens is slightly different than every other copy. Now don’t get me wrong: I’m talking slight differences that are barely detectable, not good or bad. Even when things appear to be in the “bad lens” area, they usually aren’t. The majority of the […]

Lenses and Optics

A Weekend with the Panasonic 12-35 f/2.8

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Tyler has an amazing ability to purchase hard to find items and get them to Lensrentals. Today he amazed even me —  a brand new Panasonic 12-35 f/2.8 OIS lens arrived when, in theory at least, there are none available anywhere in the U. S. None of us know how he does it. I’m pretty sure […]

How To's

Testing for a Decentered Lens: an Old Technique Gets a Makeover

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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 it could result in halos or ghosting. In most […]

Lenses and Optics

Some Mirrorless 5X Macro Fun. (Too much fun, actually).

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I generally don’t write separate reviews on items. I put a ‘take’ up on most items we rent, letting people know what I think about it. That lets me be neutral because it doesn’t make me any difference what people rent as long as they’re happy with it: the return on a $10,000 lens and […]

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