Author Archives: Jonathan Zdziarski

About Jonathan Zdziarski

Respected in his community as an iOS forensics expert, Jonathan is a noted security researcher, penetration tester, and scientist. Author of many books ranging from machine learning to iPhone hacking and software development, Jonathan frequently trains many federal and state law enforcement agencies in digital forensic techniques and assists law enforcement and the military in high profile cases. Jonathan is also inventor on several US patent applications, father of DSPAM and other language classification technology, and an App Store developer. All opinions expressed on this website are the author's own. Follow Jonathan on Twitter: @JZdziarski

Fun With Lighting and Liquor

I took this with my Canon 5D MKIII and 35mm f/1.4 L, playing around with a couple cheap portable soft boxes I picked up for a commercial shoot. When you’re doing restaurants and bars, you can’t lug around heavy plug-in … Continue reading

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Nikon Glass Rocks (But I kept my Canon, too)

I recently traded a handful of lenses and other Canon gear for a Nikon D800 with a 14-24mm f/2.8 and 24-70mm f/2.8. I still have the Canon 5D3 with the 70-200mm f/2.8 and 16-35mm f/2.8, as the Canon’s focusing system … Continue reading

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Lofoten Remastered

I went back to the raws to pull out some of my favorite photos of Reine (a small town in the Lofoten islands of Norway). A different process allowed me to apply some better toning to them and I also … Continue reading

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Dynamic Range of a Canon 5D Mark III

I’ve seen a lot of these for Nikon out there, but not any real good ones for Canon. While Canon doesn’t have as much dynamic range as Nikon, it does have quite a bit. Here’s a before and after of … Continue reading

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MAC Randomizer: Counter WiFi Tracking/Spying

After reading one of many that simply track your MAC address around town, I thought a little bit more security was appropriate. Your MAC address can be tracked regardless of whether or not you actually connect to a WiFi network, … Continue reading

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Why I Don’t Shoot at f/22 Anymore

Every “professional” photography book I’ve read makes it gospel that you have to shoot landscapes at f/22, in order to ensure that the foreground and background is in focus. Special thanks to these guys for teaching millions of photographers to … Continue reading

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Remastered: Old Cliff Dweller’s Lodge

I’ve come to really love this place. I’ve visited twice now. I wasn’t nearly as good of a photographer back then, but I’ve gotten much better at editing and mastering photos, so I wanted to do something special for this … Continue reading

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How to Tolerate DxO by Hacking MakerNotes and EXIF Tags

DxO Optics Pro was a purchase I immediately regretted making, once I realized that it intentionally restricts you from selecting what lens optics you’d like to adjust your photo with. It would take all of five minutes of programming to … Continue reading

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Forensics Tools: Stop Miscalculating iOS Usage Analytics!

There are some great forensics tools out there… and also some really crummy ones. I’ve found an incredible amount of wrong information in the often 500+ page reports some of these tools crank out, and often times the accuracy of … Continue reading

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You Are a Product

Galatians 5:22-23 New King James Version (NKJV) 22 But the fruit of the Spirit is love, joy, peace, longsuffering, kindness, goodness, faithfulness, 23 gentleness, self-control. Against such there is no law. When was the last time you saw retail stores … Continue reading

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