When our computers start acting doggie, we close down our apps and restart. Do you ever do that with your iPad? According to experts, it can help with misbehaving apps, but isn't necessary as a general maintenance procedure.

Closing apps on your iPad.

Shutting down a misbehaving app is easy, First double-press the Home button, then tap and hold on any of the apps that appear at the bottom of the screen. They will start to wiggle and display a red "-" button in the upper left corner. Tap on the red "-" button to close an app.

When you first do this, you might be surprised at how many apps you actually see on the task bar. Most of them are in a suspended state and not using resources. Once you've shut down any misbehaving apps, press the Home button once to stop the wiggling. Then press it again to return to normal working mode.

Now hold down the Power button until you get the "slide to power off" message. Go ahead and power down. After a few seconds, press the power button again to restart the device.

You've now essentially rebooted your iPad. Check your Settings to ensure you're connected to the correct WiFi network, then get back to work!

Follow Up Note - A few readers have interpreted that I'm suggesting that you close down all of your apps to improve performance or to conserve battery power. That's not my intention. The apps you see on the task bar in the App Switcher are the apps that have been open, but not necessarily open at the moment.

I usually only shut down apps that are misbehaving while I'm using them. And yes, I do restart afterwards. I am amazed at how many apps appear in the App Switcher when I do that. (I've apparently been doing a lot of stuff.) And I do notice improved performance when I remove a rogue app from the task bar and restart. The main point is sharing how to do so if needed.

iPad for Digital Photographers

This is the kind of stuff I write about in iPad for Digital Photographers-- now available in print, Kindle, and iBooks format.

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This week on The Digital Story: Aperture on your iPad and a Lightroom 5 preview with Chris Orwig. All of this and more on The Digital Story podcast.

Story #1 - Serving Up Aperture on Your iPad - You can browse your entire Aperture library on an iPad, and even grab the photos you need, using the iOS app Plex ($4.99) and the free Plex Media Server for your Mac.

This clever software provides a variety of streaming options for photos, music, and movies. But it can also peer directly into your Aperture or iPhoto library, and serve up organized content on to your iOS device. I talk about it in the first story this week.

Story #2 - An Interview with Chris Orwig about Lightroom 5. I cornered Chris while working at lynda.com to discuss the upcoming release of Lightroom 5. Chris is a Lightroom expert, and had plenty to say about the new release.

Reminder! - If you're going to purchase gear through Amazon or B&H Photo, please stop by the TDS home page first. Look for the "Products" box about half way down the page in the second column. There you will see display tiles for Amazon, lynda.com, and B&H Photo, in that order. By entering those sites through those display tiles, you help support The Digital Story.

Listen to the Podcast

You can also download the podcast here (38 minutes). Or better yet, subscribe to the podcast in iTunes. You can support this podcast by purchasing the TDS iPhone App for only $2.99 from the Apple App Store.

Monthly Photo Assignment

The June 2013 photo assignment is Stylish.

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.

iPad for Digital Photographers

If you love mobile photography like I do, then you'll enjoy iPad for Digital Photographers-- now available in print, Kindle, and iBooks versions.

Podcast Sponsors

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

Make Your Photos Sizzle with Color! -- SizzlPix is like High Definition TV for your photography.Special Offer! Anyone buying Derrick's new book, iPad for Digital Photographers, even at Amazon's or Barnes And Noble's discount, and putting the password for the Book Owners lounge in the comments space of their SizzlPix! order, will get 10 percent off their entire order -- the equivalent of more than a full refund for the book!

Need a New Photo Bag? Check out the Lowepro Specialty Store on The Digital Story and use discount code LP20 to save 20% at check out.

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Can you shoot quality natural light portraits with a standard zoom lens? I recently put the Sigma 17-70mm f/ 2.8-4 Contemporary zoom to the test during a photo session to see what kind of results we could produce together.

Because it is a general purpose zoom, I've been using the Sigma 17-70mm for a variety of tasks, including close up photography work that I wrote about in the post Macro Mode on Sigma's 17-70mm Enthusiast Zoom. The lens is also getting pretty good marks on the optical bench, such as this review at SLRGear.com. But natural light portrait photography is its own beast. It tests an optic in different ways that outside in broad daylight.

Sigma 17-70mm on Canon 60D, ISO 1600 for this existing light portrait. f/3.5 at 1/125th. Photo by Derrick Story. Click on image for larger version.

One of the aspects of the lens that I found helpful for portrait photography was its relatively fast maximum aperture (f/2.8-f/4), especially for a standard zoom that costs $499. In this series of images, I used natural light in aperture priority mode, keeping the lens wide open. Its optical image stabilization allowed me to drop to longer shutter speeds if necessary.

Sigma 17-70mm on Canon 60D, ISO 1600 for this existing light portrait. f/3.5 at 1/200th. Photo by Derrick Story. Click on image for larger version.

Autofocusing was fast and accurate, even in this dimly lit environment. The lens balances well on the Canon 60D, making the combination very comfortable to hold, even on extended shoots. Already, after just a couple months of testing the Sigma, I have a lot of confidence in the shots it will help me produce.

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Join me on my Instagram site as I explore the world of mobile photography.

You can browse your entire Aperture library on an iPad, and even grab the photos you need, using the iOS app Plex ($4.99) and the free Plex Media Server for your Mac.

This clever software provides a variety of streaming options for photos, music, and movies. But it can also peer directly into your Aperture or iPhoto library, and serve up organized content on to your iOS device.

The setup for Plex is literally a short series of clicks. You install the iOS app on your iPad. Download and launch the server on your Internet-connected Mac. Then you create an account on myPlex that enables remote access.

Aperture projects listed on an iPad

If you have Aperture or iPhoto loaded on the computer that's acting as the server, those channels are automatically added to your Plex library. Once enabled, you can browse your Aperture library on your local area network, or even remotely via the Internet.

Image captured off a Retina Display iPad via Plex using the system described in the article and applied here. (Click on photo to view full size.)

When you find a picture you want to save to your iPad, simply take a screenshot of it while in full screen mode (press the Home and Power buttons at the same time). Because of the high resolution of the Retina display on an iPad 3 or 4, the captured image will be 2048 x 1536 pixels - more than enough for sharing on Flickr, Facebook, Twitter, and blogs.

Plex is incredibly easy to use and performs quite well. It taps the preview files in your Aperture library. In my case, I have a older MacBook Pro laptop running at my studio with an archive Aperture library on it. If I need an image, let's say from 2010, I can browse the library on my iPad, capture the photo, and share as needed. Via this system, I have access to my Aperture library... anywhere.

Plex + Aperture is quite amazing.

Follow Up Note - Plex posted an update to the iOS app, v.3.2.1, that added a Save button in the upper right corner that allows you to save images from your Aperture library to your Camera Roll.

iPad for Digital Photographers

This is the kind of stuff I write about in iPad for Digital Photographers-- now available in print, Kindle, and iBooks format.

Aperture Tips and Techniques

To learn more about Aperture, check out my Aperture 3.3 Essential Training (2012) on lynda.com. Also, take a look at our Aperture 3 Learning Center. Tons of free content about how to get the most out of Aperture.

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For the April 2013 Photo Assignment, TDS shooters captured the glory of manmade structures. See for yourself in our gallery, Architecture. And which one will be the SizzlPix Photo Assignment Pick of the Month?

"It's a cracking new building with lots of lovely lines and materials," writes Matthew Jeanes. "It was my first time chasing the light. I was there at 4:30 and took this one at about 4:50 am. I love the reflection of the rising sun in the glass and the warm tones on the skin of the building." See all of the great images from this month's assignment by visiting the Architecture gallery page.

Participate in This Month's Assignment

The June 2013 assignment is "Stylish." Details can be found on the Member Participation page. Deadline is June, 2013. No limit on image size submitted.

Please follow the instructions carefully for labeling the subject line of the email for your submission. It's easy to lose these in the pile of mail if not labeled correctly. For example, the subject line for this month's assignment should be: "Photo Assignment: June 2013." Also, if you can, please don't strip out the metadata. And feel free to add any IPTC data you wish (These fields in particular: Caption, Credit, Copyright, Byline), I use that for the caption info.

Gallery posting is one month behind the deadline. So I'm posting April 2013 at the end of May., the May gallery will be posted at the end of June, and on and on.

Good luck with your June assignment, and congratulations to all of the fine contributors for April.

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iPad for Digital Photographers

If you love mobile photography like I do, then you'll enjoy iPad for Digital Photographers-- now available in print, Kindle, and iBooks versions.

Frederick and I grab a table at an outdoor cafe in Yerba Buena to discuss mobile photography and to answer the question, "Can you travel with just an iPad and your digital camera?" The short answer is, "Yes."

Watch this interview and discover, in detail, how nimble photography can enhance your creativity and enjoyment without sacrificing quality.

iPad for Digital Photographers

If you love mobile photography like I do, then you'll enjoy iPad for Digital Photographers-- now available in print, Kindle, and iBooks versions.

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You can share your thoughts at the TDS Facebook page, where I'll post this story for discussion.

You might not realize that iPhoto and iMovie can talk to each other on your iPad. This is great news for those wanting to author slideshows with a bit more pizzaz and control compared to what can be created in the Photos app.

In my latest Macworld Magazine article, Building Better Slideshows on Your iPad, I walk you through the process, step by step.

You have much more control over your presentation in iMovie for iOS than with the Photos app.

The basic workflow is to organize and edit your images in iPhoto for iOS. Once you have everything looking the way you want, send the images over to iMovie for iOS. From there you can add Ken Burns effect, transitions, titles, and music. When the presentation is finished, upload it directly to YouTube or a handful of other social media options.

And like other creative projects on the iPad, it just feels more fun to create a slideshow on a tablet than a computer.

iPad for Digital Photographers

This is the kind of stuff I write about in iPad for Digital Photographers-- now available in print, Kindle, and iBooks format.

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Infrared image of trees at 75 miles per hour captured with a Fujifilm X-20 at 1/8 of a second.

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iPad for Digital Photographers

If you love mobile photography like I do, then you'll enjoy iPad for Digital Photographers-- now available in print, Kindle, and iBooks versions.

This week on The Digital Story: The Flickr Facelift, Joby UltraPlate accessory, and an interview with Oliver Breidenbach, CEO of Boinx Software. Plus, a special offer from SizzlPix! All of this and more on The Digital Story podcast.

Story #1 - The Flickr Facelift: Many of the pages, but not all, for Flickr online received a makeover. Plus there are some new rules for membership. Bottom line is, if you have an existing Flickr Pro account for $24.99 a year, you can continue with an ad-free account and unlimited storage for same annual fee (plus the photo and video size limits will be upgraded to those offered with our new free account). Current "free" users will have to spend $49.99 a year for ad-free and 1 TB of online storage. And if you want 2 TBs of storage, it will cost you $499.99 a year.

Story #2 - The Joby UltraPlate Arca Swiss compatible quick release plate for DSLRs. This $19.95 accessory attaches to the bottom of your camera adding very little height to the body. You can attach a variety of straps to it, such as the Joby UltraFit Sling and use it on your tripod at the same time. Very convenient.

Story #3 - Interview with Oliver Breidenbach, CEO of Boinx Software. Among other apps, Boinx created the wonderful iStopMotion for iOS that I featured in the book, iPad for Digital Photographers. Oliver talks about the development of iStopMotion, and I chime in with the joys of creating time-lapse videos with a tablet computer.

Reminder! - If you're going to purchase gear through Amazon or B&H Photo, please stop by the TDS home page first. Look for the "Products" box about half way down the page in the second column. There you will see display tiles for Amazon, lynda.com, and B&H Photo, in that order. By entering those sites through those display tiles, you help support The Digital Story.

Listen to the Podcast

You can also download the podcast here (28 minutes). Or better yet, subscribe to the podcast in iTunes. You can support this podcast by purchasing the TDS iPhone App for only $2.99 from the Apple App Store.

Monthly Photo Assignment

The May 2013 photo assignment is Food.

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.

iPad for Digital Photographers

If you love mobile photography like I do, then you'll enjoy iPad for Digital Photographers-- now available in print, Kindle, and iBooks versions.

Podcast Sponsors

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

Make Your Photos Sizzle with Color! -- SizzlPix is like High Definition TV for your photography.Special Offer! Anyone buying Derrick's new book, iPad for Digital Photographers, even at Amazon's or Barnes And Noble's discount, and putting the password for the Book Owners lounge in the comments space of their SizzlPix! order, will get 10 percent off their entire order -- the equivalent of more than a full refund for the book!

Need a New Photo Bag? Check out the Lowepro Specialty Store on The Digital Story and use discount code LP20 to save 20% at check out.

Want to Comment on this Post?

You can share your thoughts at the TDS Facebook page, where I'll post this story for discussion.

There are many things to like about the Sigma 17-70mm f/2.8-4 DC Macro OS HSM lens. Its high quality optics, built-in image stabilization, fast f/2.8-f/4 maximum aperture, affordable $499 price tag, and... built-in macro.

To me, having macro on an already terrific all-around enthusiast lens feels like a luxury. So I decided to test its capability, just to make sure I wasn't getting excited about, well, nothing. Fortunately, I wasn't.

I mounted the Sigma zoom on a Canon 60D and played with different close up settings. The maximum reproduction ratio is 1:2.8, but it felt tighter than that. Maybe the cropped sensor of the Canon 60D added to effect.

Ladybug on Lavender - Sigma 17-70mm on Canon 60D - ISO 640, 1/500 at f/9

The images were crisp with good color and detail. And now that I can trust the close-up ability of the Sigma 17-70mm f/2.8-4 DC Macro, I can move in and out on my subjects even more. Terrific!

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