"C-Clamps 'n Things, Shutter Speed Rule, Really Big Sensor" - Podcast 496

This week on The Digital Story Photography Podcast: Canon's 250-million-pixel imaging sensor, C-Clamps 'n Things, The Reciprocal Rule of Shutter Speeds - all of this and more on today's show with Derrick Story.

Weekly Update - "Canon Develops 250-Megapixel Sensor" Photography Blog reports: "Canon is developing an APS-H-size CMOS sensor incorporating approximately 250 million pixels. With CMOS imagers, increases in pixel counts result in increased signal volume, which can cause such problems as signal delays and slight discrepancies in timing. The new Canon-developed CMOS sensor, however, despite its exceptionally high pixel count, achieves an ultra-high signal readout speed of 1.25 billion pixels per second, made possible through such advancements as circuit miniaturization and enhanced signal-processing technology."

And then Amateur Photographer adds on: "Canon Europe is developing a 250-million-pixel imaging sensor designed to be capable of distinguishing the lettering on the side of a plane around 11 miles (18km) away."

In other news, Amateur Photographer posts: "Olympus Japan suspends sales of OM-D E-M10 Mark II" - Olympus Japan has suspended sales of its new OM-D E-M10 Mark II owing to an apparent glitch with the lens mount when using plastic-mount lenses. Olympus Europe has yet to respond to a request for comment and Amateur Photographer will publish an official statement when one becomes available.

Story #1 - The Reciprocal Rule of Shutter Speeds

I read an article about the reciprocal rule on The Photoblographer, and I thought it would be a good idea to cover that ground here too. Because image stabilization has become so effective, we don't cover the reciprocal rule as much as we used to. But I still find myself in many situations without IS, such as shooting with the Olympus Air. Plus, applying this rule with image stabilization helps ensure sharp images. The basics go like this (as posted on The Photoblographer):

  • In order to achieve a stable image that is devoid of camera shake, you must shoot at a shutter speed that is the reciprocal of the minimum of the field of view.
  • What does that mean? If you're using a 100mm lens on a full frame 35mm sensor/film body, then you need to shoot at at least 1/100th to produce an image that contains no camera shake when shooting handheld.
  • If you're shooting with a 100mm lens on an APS-C sensor that has a 1.5x crop factor, then you need to shoot at 1/150th at a minimum. Here, the crop factor is taking into consideration.
  • If you're shooting with a 100mm lens on an APS-C sensor that has a 1.6x crop factor, then you need to shoot at 1/160th at a minimum. Here the crop factor is also taken into consideration.
  • Micro Four Thirds shooters need to shoot with a 100mm lens at a minimum of 1/200th because of the crop factor.

I talk about this in today's first feature story.


Story #2 - "C-Clamps and Things"

Since I've been shooting with the Olympus Air A01, I've been digging around in my box of c-clamps that I typically use for my various flash rigs. Doing so has had me thinking how much fun it is to rig up shooting and lighting contraptions. I talk a bit about this in today's second feature.

Story #3 - From the Screening Room - Exploring Photography: Exposure and Dynamic Range with Ben Long.

You can watch Ben in action by visiting the TDS Screening Room at lynda.com. While you're there, you can start your 7 day free trial to watch all of Ben's movies, plus every other title in the library.

Virtual Camera Club News

A Word from SizzlPix

The 5k Ultra High Definition SizzlPix is the upgrade now in general release on all orders, so you can display your best photography in sizes from 18-inches to 6-feet with resolution and realism one expects only from the small screens on handheld phones and pads. SizzlPix clients say, contrary to expectation, resolution seems to increase as their photos grow larger!

SizzlPix invites photographers to order a print from the assembly-line plants, and a 5k Ultra High Definition SizzlPix from the same image. Compare them side by side. They've never ONCE had a client declare they liked the mass-produced print better. If yours is the first, you may return their SizzlPix for a full refund!

Idea from Red River Paper

Do you know a Scrapbooker? Red River Paper has a page dedicated to those who love making scrapbooks, including a link to their Scrapbooker's sampler for only $14.99.

Mastering the Olympus OM-D E-M5 Mark II - A new 528-page guide by Darrell Young and James Johnson cover every feature of this superb mirrorless camera by Olympus. You can get 40 percent off the eBook price by using discount code: omdm540 at www.rockynook.com.

Fall Color with Safari West: October 23-25, 2015 - Sonoma County has rolling hills covered in vineyards, beautiful trees, and gorgeous blue skies. What a prefect place to shoot Fall color and bolster your landscape library. But there's more. We include environmental portraiture with a professional model, and an exclusive African wildlife photo adventure at Safari West, led by a professional photographer, plus a few surprises. This is our longest running workshop of the season, and for good reason. Two full days plus pre-workshop reception, breakfast and lunch, excellent swag, professional model, private Safari West adventure with a pro photographer guide - all included for just $599.

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More Ways to Participate

Want to share photos and talk with other members in our virtual camera club? Check out our Flickr Public Group. And from those images, I choose the TDS Member Photo of the Day.

Podcast Sponsors

lynda.com - Learn lighting, portraiture, Photoshop skills, and more from expert-taught videos at lynda.com/thedigitalstory.

Red River Paper -- Keep up with the world of inkjet printing, and win free paper, by liking Red River Paper on Facebook.

SizzlPix! - New 5k Ultra High Definition SizzlPix output for your photography. You've never seen your imagery look so good. SizzlPix.com.

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