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What to do if your lens chronically backfocuses
If you have a high end DSLR (or one of those Sigma USB docks), you might not know it, but you have the ability to adjust how your lenses autofocus. If you find your photos consistently having the problem where the focus is either to the front or back of where it’s meant to be, you may need to tweak the autofocus microadjustment, and Canon has put together an excellent guide to this feature on the Canon Knowledge Base.
While the guide is a bit long in the tooth (it’s from 2011), and is specific to Canon cameras. But the discussion of the techniques and technology being used to tweak the AF are universal enough that they also apply to just about any camera with microadjustment functionality. The article discusses how to spot that it’s happening, and how to begin the process of fixing it—be it for the the camera as a whole, or just for a specific lens.
The one thing we would add to this guide is the usefulness of using a dedicated lens calibration chart. If you want to get super-accurate about it the Spyder LensCal and LensAlign charts are both excellent options if you’re willing to pay. There are also free alternatives, which would probably do the job for most people (assuming you have a sufficiently good printer), like this one from Jeffrey Friedl, or this one from Squit.co.uk.
All they want is the back for adspace
Flag is a Kickstarter that’s offering something that most of us would have a very hard time saying no to—free prints of our photos. You don’t even have to pay cash for shipping. What do they want in return? They’ll put ads on the back, utilizing the blank space to sell advertising.
It’s an interesting concept, and one that’s hard to ignore, because—hey, free prints! And it sounds bordering on too good to be true. The service would offer up 20 photos every month, printed on “museum quality” 220 gsm paper. If you wanted a bigger print than the standard 4×6, you can order a 16 photo “enlargement” jigsaw puzzle. The service would also allow square or 16:9 prints for no extra fee, as well as the options of laser cut edges and postcards for what seems to be a slight extra fee.
Using blank space like this for advertising isn’t entirely without precedent. Vistaprint famously offers free business cards with their logo and website on the reverse—though you still had to pay shipping. And photographic prints have long had advertisements for either the paper maker or printing service on the back.
But since the app and service are destined to be free if fully funded, what’s the point in backing Flag? Well, you get early access, and you also get your money back in print services, should it launch.
As excellent an idea as Flag sounds, it still has an uphill battle. With just 11 days left on the clock, it’s only half-way to its funding goal. Hopefully it manages to get fully funded, so that we can all take advantage of free prints from our smartphones.
Update: Flag founder Samuel Agbool dropped us a line to let us know that they’re doing just a two week fundraiser—which means that in contrast to our previous statement, they’re actually doing extremely well. In just three days they’ve hit 50% funding, which is an impressive achievement.
Reports have been surfacing that Nikon is issuing new D610 cameras to customers who send in their D600s for service. It’s hard to substantiate, but Nikon Rumors has been collating reports from Europe and the US which seem to show that some customers w…
Ricoh has updated the suite of apps provided with the Theta spherical image camera, to allow users to post images from the Theta to Google Maps and Google+. According to Ricoh, these new abilities are a result of collaboration with Google to make the …