Version 4 of PhotoRaw and PhotoRaw Lite are now available on the App Store. The new version is a full 64-bit rewrite of PhotoRaw, and takes full advantage of the speed of Apple's new devices. I've talked in previous posts about the speed advantages that 64-bit operation can bring.

If you haven't tried PhotoRaw since the first version of PhotoRaw and the iPad 1, you should try the new version on an iPad Air - you'll be surprised......

In my last blog post, I went all technical, and talked about how to use the SIMD hardware acceleration, otherwise known as NEON, on Apple's new 64-bit processor (aka ARM64, aka ARMv8-A) on the iPad Air and iPhone 5s.

But the question is, is it actually worthwhile? Writing code for a SIMD processor is hard at the best of times, and in this case the documentation is near non-existent, and Apple's compiler is buggy.

So this one is for the serious techies.

It's been widely publicized that the new iPad Air and iPhone 5s have 64-bit processors. What's not not so well understood is that the 64-bit processors can actually either run old 32-bit code, or new 64-bit code. If you run the new 64-bit code, you're running an instruction set that's quite different to the old one; it's not like it just got bigger registers.

Lloyd Chambers, of the diglloyd blog, recently published a review of the Nikon D800M in which he used AccuRaw Monochrome for raw processing. So what is AccuRaw Monochrome and why should you care? Here's the story:

By way of background, the D800M is a Nikon D800 that's been modified by the folks at MaxMax.com to remove the Bayer color filter layer on the sensor, creating a pure monochrome camera. So, no Bayer demosiaicing artifacts, beautiful tonality, etc, etc.
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For that have been looking for an opportunity to buy AccuRaw, it's 30% off on the App Store for the whole black Friday weekend, through cyber Monday.

Sean Reid, of Reid Reviews, just published a follow-up article to his test of the Fujifilm XF27/2.8 lens, titled "XF Lens Res. Revisited". In this article Sean repeats a number of his previous tests of Fuji and Zeiss lenses, but this time using AccuRaw. In addition, he also tests the effect of software correction of lens aberration on lens resolution. Unsurprisingly, software correction of lens aberration can result in noticeable reductions in resolution.

Sean Reid, of Reid Reviews, just published his extensive test of the Fujifilm XF27/2.8 lens. As usual with Sean's reviews, it very comprehensively covers the lens' performance as regards resolution, aberration, vignetting, etc.

For this review however, Sean also took things a little further, and tested the effect of the raw converter used on apparent resolution. He tested Lightroom, AccuRaw, Raw Converter EX, Capture One and Iridient Developer.
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Hans van Eijsden, a fashion and portrait photographer based in the Netherlands, just published a really great article describing how he goes about getting skin tones just right. Most important, he describes how he does so without spending hours manually editing each image. For a professional photographer, time is money, so an automated, repeatable method is really important.
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Several people have asked me whether there will be a new version of PhotoRaw for iOS 7, and if so, will existing users have to pay. For those that don't know, PhotoRaw is my raw image viewer/editor for iPhones and iPads.

The good news for users is that:

Yes, there is a brand new version of PhotoRaw for iOS 7, complete with a cool new iOS 7 look and feel. Even better, it's available right now on the Apple App store. And......it's a free upgrade for all existing users.

Yesterday the web lit up with variations on "Adobe to bring Lightroom-style photo editing to tablets". Originally from Scott Kelby's "The Grid", and then picked up by CNET and multiple others. The big deal being the ability to process raw images on the iPad.

Guess what guys? - it may be news that Adobe is doing this, but the technology isn't new at all. Actually, Adobe's 18 months to two years behind the curve.
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Author of AccuRaw, PhotoRaw, CornerFix, pcdMagic, pcdtojpeg, dcpTool, WinDat Opener and occasional photographer....
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