Lenses and Optics

There Is No Perfect Lens Test, Either

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In my last article, I wrote about the fact that every copy of a given lens has some bit of sample variation. This affects lens reviews, whether lab-based or photography-based, because the copy they tested will be just a bit different from the copy you buy. I suggested, that if you want to get a […]

Lenses and Optics

There Is No Free Lunch, Episode 763: Lens Adapters

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Lens adapters can be useful things sometimes, letting you mount one brand of lens on another brand of camera. One thing that has always bothered me, though, is the idea of doubling the number of lens-mount interfaces. When you look at the thick metal pieces on the front of the camera and the back of […]

Lenses and Optics

There is No Perfect Lens

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The Three Questions I get asked a couple of questions every time I publish a graph showing Imatest results for multiple copies of lenses like the one below. Most people understand that some copy-to-copy variation is inevitable in the manufacturing process. Most are surprised, though, at how large the sample variation seems to be. Heck, […]

Lensrentals News and Alerts

Lensrentals is Coming to Nashville!

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We are happy to announce the opening of our satellite location in the Nashville area. Our Nashville office will serve as a pick-up center beginning on September 12th. There is no charge to pick-up from the Nashville location. Initially, all Nashville orders will be available the next day, although we hope to soon offer same-day […]

Roger's Corner

Fun with Color Vision

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I’ve been doing a lot of technical things lately, writing up our repair data and investigating methods of reducing optical variation in lenses. So I thought I’d take a bit of a break and write a post about something fun. Human vision is always fun to me, since it’s an area where I can apply […]

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