RCicala

RCicala

DPReview Contributor
Lives in United States Memphis, United States
Joined on Oct 7, 2011

Editorial content

Total: 13, showing: 1 – 10
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Lens Wars: Episode V - Petzval Strikes Back

A long time ago, on a continent far, far away, it was a dark time for photographers. Available lenses were F16. Exposure times were long and portraits nearly impossible. The evil Lord Talbot ruled the photographic galaxy. But In the icy world of Europe, a group of bold lens designers sought to change all of that...

The Beginning of Photography: The Drama of 1839

The year 1839 began with the announcement that people could make permanent pictures. But it was the middle of that year before anyone (other than the few inventors) really could. And the drama involved meant that for quite a while after 1839, some people couldn't.

Roger Cicala: Imaging Before Photography, Part III -- The Showman and the Sheriff

Roger Cicala promised the history of photography was filled with hysteria, theft, cheating, back-stabbing, cattle stampeding and all manner of drama. Part III doesn't quite get there, but it sure foreshadows what's coming. To paraphrase Churchill, this is the end of the beginning.

Roger Cicala: Imaging before photography, Part II – The Aristocrat

Roger Cicala said the second chapter of 'Imaging before photography' would be more fun, but it's not more fun. It's kind of sad, actually. This chapter focuses on Joseph Nicephore Niepce. You may him as the man who took the first photograph. But back in his day people knew him as . . . . . actually they didn't know of him at all, really.

Roger Cicala: Imaging before photography - a history lesson (Part 1)

A decade ago I wrote some articles on the history of photography. Now I'm writing an eBook. Slowly... In the meantime, Barney and I thought we'd post the first chapter here on DPReview to see if anyone would be interested. Anyone other than me and Barney.

Why are modern 50mm lenses so damned complicated?

Why are modern 50mm lenses so complex? Lens designers didn't add all that extra glass just to charge more money and make the diagram look cool, explains Roger Cicala.

Roger Cicala: Understanding field curvature for fun and profit (part 2)

What is field curvature, and why should you care? In this article – the second of two – professional optics geek Roger Cicala goes even deeper into the subject. Warning: many swirly graphs ahead.

Roger Cicala: Understanding field curvature for fun and profit

What is field curvature, and why should you care? In this article – the first of two – professional optics geek Roger Cicala explains all.

Roger Cicala: the difference between sample variation and a 'bad copy' (Part 2)

Roger Cicala delves back into the murky waters of sample variation among lenses and explains how – depending on how you define your standards – you might end up getting multiple 'bad copies'.

Roger Cicala: the difference between sample variation and a 'bad copy' (Part 1)

In the first part of a two-part article, lens testing expert Roger Cicala explains why inevitable variation among copies of a lens and a 'bad copy' aren't the same thing.