Articles tagged "roger-cicala"

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.

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.

Roger Cicala: why I don't use an MTF bench to test my own lenses

Lens geek and founder of Lensrentals Roger Cicala explains why even with a world-class testing lab at his disposal he doesn't use it to assess his own personal lenses.

'Who am I and what am I doing here?' Introducing Roger Cicala

Meet DPReview's new writer: Roger Cicala, founder of Lensrentals. Be nice – he's doing this for free, for some reason.

Lensrentals tears down a $10K Fujifilm GFX 100 corroded by saltwater

Pro tip: If you aren't careful when using your $10K GFX 100 inside a waterproof housing, you're going to have a bad time (or the rental house you're borrowing will have a bad time).

Lensrentals bought a $10K machine to test the flange-to-sensor distance of more than 2,500 cinema cameras

What started as an internal means of checking the flange to sensor distance of its inventory turned into the painstaking task of measuring more than 2,500 camera bodies.

Lensrentals tears down Nikon's $10,000 Nikkor AF-S 120-300mm F2.8 lens

Roger and Aaron of Lensrentals have shared their latest teardown; a careful disassembly of Nikon's Nikkor AF-S 120-300mm F2.8 FL ED SR VR lens.

Lensrentals teardown reveals the inside of the 'Strong like Bull' Canon RF 70-200mm F2.8 lens

Roger Cicala and his team at Lensrentals have taken apart Canon's RF 70-200mm F2.8 IS lens to reveal what engineering feats are hidden within.

Lens Rentals calls the Z7 the 'best built mirrorless full-frame camera we’ve taken apart'

Just in case you were wondering what’s packed inside the Nikon Z7 and how well constructed it is, Lensrentals has kindly opened one up so you don’t have to.

This is what happens when a 'weather sealed' camera encounters salt water

Roger Cicala of Lens Rentals shows us what happens when your camera (regardless of brand) takes a swim in salt water... and why 'weather sealed' does NOT mean 'waterproof.'

Roger Cicala reveals winners of First Annual Photogeek contest

Roger Cicala of LensRentals has revealed the winners of his 'First Annual Photogeek Geek Photo Contest'. What was originally intended as a light-hearted joke ended up receiving over 400 entries from at least 20 countries, and the impressive quality of the entries caused a real headache for the judges. After a lot of deliberation, Rishi Sanyal won 'Best in Show' for his remarkable 'MacroSetUp' series. Click through to see the extraordinarily geeky winning images, and a link to the full contest gallery.

Roger Cicala cynically re-defines photography

Lensrentals' Roger Cicala continues his recent run of fine satirical form with his latest blog post - a series of cynical definitions for widely-used photography terms. We're almost tempted to use it to replace our glossary, as it should be considered recommended reading before commenting on any photography or 'gear' forum. It's certainly going to make us think carefully about the terminology we use in future reviews.

Not just any competition: Roger Cicala's First Annual Photogeek Contest

Roger Cicala of LensRentals is man after our own hearts, never happier than when tinkering with lenses and writing about what he finds, however obscure it may turn out to be. And in celebration of this, he's launched what we'd like to think of as the ultimate photo competition: The First Annual Photogeek Geek Photo Contest. Full of entertaining categories, and with at least one hugely desirable prize on offer, it's open for entries until November 15th. It's Roger's competiton so we're not going to reveal too much here; head over to LensRentals and have a look. If nothing else, it should make you laugh.

Can cheap filters damage your lens? A cautionary tale from Roger Cicala

Can cheap filters damage your expensive lenses? LensRentals' Roger Cicala decided to look into the possibility, after seeing a number of lenses returned with odd circular scratches on the front element. His investigations provide a cautionary tale against skimping on buying a new protective filter after buying an expensive lens. Click through for a link to his full article.

Roger Cicala investigates accuracy of lens adapters

Mount adapters are incredibly useful for their ability to make lenses from one manufacturer usable with camera bodies from another. But do they have any impact on image quality? LensRentals' Roger Cicala, not one to take manufacturer's claims at face value, investigated. Knowing that slight mis-alignments between a lens and even its native mount can cause softness in images, the added complexity with a lens adapter in the mix seemed likely to cause more problems. His findings are indeed interesting. 

Roger Cicala compares Zeiss and Canon 135mm f/2 lenses

LensRentals' Roger Cicala has published an interesting comparison of the Zeiss ZE 135mm F2 APO-Sonnar and the Canon EF 135mm f/2L USM lens, with both optics mounted on a Canon EOS 5D Mark II. While you'd expect nothing less than excellent results from the Zeiss optic, just what advantages can the heavier and much more expensive lens offer compared to Canon's well-regarded prime lens? Click through to read Cicala's findings.

Roger Cicala compares three 24-70mm F2.8 lenses

LensRentals' Roger Cicala has published an interesting article comparing 24-70mm F2.8 lenses from Canon, Nikon and Tamron, using both an optical test bench and Imatest results from Canon EOS 5D Mark III and Nikon D800E bodies. This provides some insights about the interaction between the sharpness of the lens and resolution of the camera's sensor, and under what practical circumstances you might see any difference. It's worth reading for anyone interested in the long-running question: what provides more detail, a higher resolution sensor with a good lens, or a lower resolution sensor with a great lens?   

Roger Cicala looks at the Canon 40mm F2.8 STM pancake lens

Lensrentals' Roger Cicala has just tested Canon's EF 40mm F2.8 STM pancake prime lens, with interesting results. Cicala has tested eight copies of the $199 lens, to see what compromises have been made to offer a video-optimized lens in a small package for such a low price. His initial impressions are worth reading if you're one of the people considering this lens.