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RAW revisited, yet again

Boost is your enemy

in Apple Aperture , Thursday, November 01, 2012

I’ve recently gone through another of my periodic obsessions with testing RAW converters. My default choice remains Apple Aperture, partly because I’m committed it’s excellent organisation and management tools. However, there is no reason why I cannot use Aperture to manage my images while carrying out the RAW conversion in another application. Indeed, as I wrote a few weeks ago, I’ve recently started using Photo Ninja. I’ve also been using Iridient RAW Developer for many years, and indeed I’ve just paid what I think is the first ever upgrade fee they’ve requested. The new arrival of Capture One Pro 7 and DXO Optics Pro 8 also tempted me to give them a spin. Capture One was my first choice ages ago, when they were at version 3. They screwed up badly with version 4 and lost me - first to Iridient, then to Lightroom 1. And when, with version 2, Aperture became a realistic choice, I switched from Lightroom and I’ve stayed there ever since.

The thing is, whatever the interwebs and pundits proclaim, there isn’t really a best RAW converter (although there are some appalling products best not mentioned). They’re just different, a bit like film stocks were different. Even with all settings on zero, they give remarkably varying interpretations of white balance, colour and tone. And in fact it isn’t always that easy - or even possible - to get a basic, standard gamma conversion. Iridient seems to do it, and Aperture can be convinced to do so if you zero all the sliders in RAW Fine Tuning (especially Boost! Boost is - often - your enemy). It seems that DXO’s “neutral” setting does something reasonable. Photo Ninja really doesn’t do neutral, but that’s fine, it has a very different philosophy. CaptureOne, dunno, got bored trying, and I never touch Lightroom these days, for totally irrational reasons. And then there’s also the manufacturer’s software to consider, which we might assume is a good baseline. In my case, that’s Olympus Viewer, which is far from the worst out there, but I’m still glad I don’t depend on it.

ApertureDefFlat

Above is an example of Aperture’s default setting for the Olympus E-5 (right) and a “neutral” setting (left). In my experience the neutral setting is often the better starting point, especially when you want to work on shadows and highlights. Aperture’s default can easily blow perfectly good highlights. However the default is - initially - far more flattering and attractive. And sometimes it’s just fine, so long as you’re in control of the choices, not the software.

Here’s a screen shot from Aperture’s browser of a bunch of different interpretations of a RAW file, where I’ve tried, at least some extent, to get similar results, initially driven by Photo Ninja’s interpretation.

Raw variants

From left to right: Aperture, Photo Ninja, Olympus Viewer, Iridient

None of these are essentially good or bad. It all depends on what you’re trying to achieve, what your aesthetic is, and how many comments you’re trying to get on Flickbook. And probably some applications work better for certain cameras than others. But what is interesting is to examine some of the differences in rendering. Photo Ninja, for example does a remarkable job at tonal separation in shadows, and enhancing micro-contrast. DXO, when it’s co-operating, delivers fantastic sharpening. Aperture, remarkably enough, does a great job on noise reduction, an area where it is frequently maligned (actually it seems that what it is good at is not amplifying noise). Iridient can squeeze out ultimate detail, but it needs careful application of its 4 different sharpening algorithms. As for default looks, the scale ranges between Iridient’s subdued approach and Photo Ninja’s “all knobs on 11” blast. Both can be good.

It’s interesting how many people seem to want their RAW converter to replicate the in-camera JPG. Am I the only one who sees a bit of a logic breakdown there ?

But… the really interesting thing is that the more I look at all these different results, the more I learn about how to replicate them in my primary tool, Aperture. There are some things which Aperture is really not top-notch at, in particular sharpening. However, sharpening can be applied using a plug-in, or via Photoshop. Aperture has some truly fantastic tint and colour correction tools, and it’s overall mode-less, photo-centric workflow is, in my opinion, way ahead of anything else on the market. Nobody else comes close.

Perhaps Apple might now react to the deluge of new releases from its competitors. Aperture 3 is now really ancient in Internet Years, and it could do with a few improvements. Better lens correction, much better sharpening, print tools which are actually designed to support how photographers work (setting a fixed output resolution and size, and sharpening at that setting, for example). But really there’s not that much wrong with it. Anyway, we won’t know until an update is released, if ever. I don’t think Apple’s obsessive secrecy is doing it much good in this particular market.

What I do think is important is that you pick an application and really, really learn to make it do what you want. It’s amazing that people will agonise over expensive lenses, massive amounts of megapixels, etc, and then allow some anonymous computer programmer’s idea of a default setting to dictate the look of their photos.

Posted in Apple Aperture on Thursday, November 01, 2012 at 08:06 PM • PermalinkComments (2)

Iced by PhotoNinja

instant Kodachrome ?

in Photography , Wednesday, September 19, 2012

I have just uploaded a new gallery, simply called “Ice”. It contains a set of photos taken at various places and times, all featuring ice in diverse, and mainly quite abstract, forms.

Ice gallery



This set has been edited with a new RAW processor, Photo Ninja, the successor to the highly regarded Noise Ninja. I have to say I didn’t really expect to see much new in the world of RAW software at this point in time. I’m quite happy in general with Apple Aperture, although I keep an eye on Adobe Camera Raw, Capture One, and in particular Iridient RAW Developer. But none of these offer anything other than barely perceptible advantages over Aperture, if any at all. Aperture’s RAW engine is highly under-rated for some reason, perhaps simply Apple fatigue, although I suppose it depends on what camera you use. But for my Olympus & Ricoh files, I have no complaints. And the workflow is head & shoulders above anything else.

Photo ninja1

Photo Ninja’s quite minimalist user interface

So why bother with anything else ? Well, Photo Ninja is actually quite, remarkably, different. If there is one defining thing about it, it is that you need to go against habits and wise teachings, and let it do its thing. Once you set up a few preferences to steer it the right direction, its first attempt is usually pretty remarkable. Unlike other RAW processors, it has a real “look” of its own, which I suspect people will love or hate.  There is scope for plenty of fiddling, with a mix of standard and less standard controls (such as “illumination” which is a sort of contrast control that can be linked to exposure). But often I just come back to the auto settings - something I NEVER do usually. A huge amount of thought has gone into Photo Ninja’s automatic algorithms, and they should not be thought of as the usual “auto contrast” white / black point settings most rivals offer.

Photo ninja3

Photo Ninja’s tool list. Note its ancestor, Noise Ninja, is present & correct

Photo Ninja is a version 1.0 release and it does seem to do some weird things on the odd occasion. One of the images in the set it did something very weird indeed to, so I’ve used the Aperture version CORRECTION: I take it back. It was user error on my part. Nothing weird at all. Speaking of Aperture, Photo Ninja integrates with it extremely well and supports multiple round-trip editing of the original RAW file. I don’t believe anybody else has worked that one out. So you can retain Aperture’s excellent workflow and management features whilst using Photo Ninja as an alternative convertor.

Photo ninja2

Photo Ninja’s default setting on the left, Aperture 3.2’s on the right. It’s been said that Photo Ninja has a “Kodachrome” look.

You can get a free demo of Photo Ninja, so I suggest that if you’re interested, you just try it. If nothing else it will give you a new perspective on your images.  The photos in the “Ice” set are the first I’ve published in a long time that were not processed in Aperture. I’m not yet sure I’d want to use Photo Ninja exclusively, but I’m certainly going to keep it around.

Posted in Photography | Product reviews on Wednesday, September 19, 2012 at 10:42 PM • PermalinkComments (2)

revisiting RAW

Yet more options….

in Apple Aperture , Monday, October 31, 2011

Prompted by a series of posts by Mitch Alland, I decided it might be interesting to take another look at a RAW processor I’d not seriously considered in the past, Raw Photo Processor, or RPP.  RPP is not your usual run of the mill RAW processor.  It concerns itself only with the initial steps of translating the RAW file into a finished photo, and, unlike others (the author claims - I’m not 100% convinced), recalculates from the raw data for each applied edit.  It works a bit differently from a user interface perspective too, foregoing sliders for direct numeric input, and in most cases refreshing the preview only on demand. However, it isn’t as hard to use as it seems on first glimpse.

Mitch Alland reports that “it’s been a revelation because RPP does a much better job in raw development than Aperture: it simply produces better resolution and better color”. So it seems worth taking it for a spin.

Here’s a comparison of a file output from Aperture at default settings (above) and from RPP, with a contrast curve applied in Photoshop, below:

Snapz Pro XSnap001

As you can see, the white balance is significantly different. I’m not sure which is “right”. The RPP version is very neutral, but I couldn’t say for sure if the Aperture (actually, in camera) version is capturing an accurate cast. RPP white balance works well on Auto, or Custom, but In Camera is a bit strange.

As for detail, well, yes, I’d say that RPP visibly delivers a touch more, but it’s not going to be noticeable to the average audience.

RPP also delivers more image. On this Olympus E-P2 shot, Aperture outputs a 4032 by 2034 pixel image -which is to Olympus’s specifications. RPP recovers more, providing 4090 by 3078. I believe the “extra” pixels have something to do with calibration, but apparently they do contain usable image data.

The big difference between basic RPP and basic Aperture processing, disregarding white balance, is Aperture’s Boost slider. Basically, RPP delivers a file with Boost set to 0. According to Apple, Boost applies a camera-specific contrast curve directly after RAW demosaicing. It is actually remarkable what a difference it makes - this, effectively, is the “look” or magic sauce of a RAW converter. Of course it’s a subjective judgement as to whether this is a good thing or not.  RPP gives you the best shot it can at providing you with the basic ingredients, and it’s then up to you to make the most of these in subsequent post-processing, be it in Photoshop, Aperture, Lightroom, or whatever.

It’s difficult to make a quick judgment on the real-world merits of RPP, but using it gives you a clearer idea of what’s really going on behind the smoke and mirrors, and potentially it might just give you a quality edge.  In any case it’s a useful tool to have. And it’s free - although donations are appreciated.

Posted in Apple Aperture | Olympus E-System | Product reviews on Monday, October 31, 2011 at 11:11 AM • PermalinkComments (3)

A RAW Workflow

in Olympus E-System , Thursday, August 03, 2006
Since I have a received a good few questions about my workflow, particularly from Olympus E-1 owners, I though it was maybe time to write something about it. Note, I do all of my digital photography on Macs, so I'm afraid this workflow is Mac specific, or at least the RAW conversion part is. I use three core tools on my workflow:



I also use Colorbtyte ImagePrint for printing, and FixerLabs SizeFixer for scaling up. For RAW processing, I sometimes use PhaseOne CaptureOne Pro and Olympus Studio. For Lumix LX1 RAW processing, I usually use Adobe Lightroom Beta. I only use Adobe Camera Raw in special cases, for example if I want to use Photoshop's HDR tool. In all cases, you can assume I'm using the latest versions of each application.

Stage 1: Ingesting
The first part of the workflow involves getting image files off the card and into the computer. I use MediaPro to import and rename the files, and to apply a basic personal metadata template. I don't really have a solid naming scheme, but I at least rename files to include a code indicating which camera the file comes from, and the date. I let MediaPro assign a serial number. Actually, the best renaming software I've seen is Olympus Studio, which allows you to use EXIF fields as components of the file name. The important thing is to have a unique name, and to keep it throughout the pipeline. In this way, it is possible to sync metadata in between different catalogues and different filetypes (so for example the captions from E1_20060603_0091.ORF and E1_20060603_0091.JPG can be synchronized. My filing system is quite simple: I have a master hard disk for RAW files, with folders for each month. Within these folders, I create subfolders whose structures depend a bit on the nature of the shoot. Usually, I create a folder for a single day, e.g "2006_06_03" (that's 3rd June…I'm European), but I might create a folder for a multiple day "shoot", e.g. "Iceland March 2006". No hard and fast rules, just whatever makes sense. If I end up using CaptureOne, it will require its own sub folder structure to be created inside this folder – at least, if you prefer to keep things simple it will. Other RAW developers will leave settings files inside these folders too, so it is important to ensure these remain safe. I generally back up each folder to DVD – one or more, as necessary, although this is not ideal, really, since the backup only store settings files created up to that point. I also keep an automated working backup using Retrospect. I maintain two "master" RAW catalogs for Olympus ORF and Lumix Raw (converted to Adobe DNG) respectively, and these automatically update. I plan in the future to manage archive backup creation from these catalogs (using a script to record the archive volume names in each image's metadata), but I haven't got around to that yet.

ivmpscreen.jpg

Microsoft iView Media Pro



Stage 2: Preview
Once the files are organized, I create a local catalogue using MediaPro – by this I mean a catalogue of just the RAW files in the particular folder. I set MediaPro to produce the largest, highest quality previews it can create. I then use the comprehensive previewing and rating tools to decide which images I want to work further with, and how I want to categorise them (for example, I might well have "fun", "family" and, er, "art" shots from the same shoot. MediaPro 3's new Lightbox tool comes in extremely handy here, although it is very important to note that you are working with an 8-bit preview here, so the histogram for example is of the preview, not the 12bit RAW. However, it is easily good enough to show if an image is irrecoverably over- or under-exposed, and the method is fast and effective. At this point I will delete any files which are really trash, although if in any doubt, I keep them. Disk space is cheap. I end up with sorted, rated files, and I can even print contact sheets if I wish.

Stage 3: RAW Processing
For RAW Processing in the vast majority of cases I use Iridient RAW Developer (IRD). IRD, thankfully, has the good taste and common sense to be "just" a RAW developer, and has no pretensions to act as a full blown "workflow manager" (no, I'm not going to get sidetracked). IRD has drawn praise from a number of reputable sources, and is possibly the most full featured product in its category. Certainly it can't be beaten on sharpening options. Initially IRD seems very complex, but the complexity is only there if you need it, and it doesn't get in the way. It also often provides several ways to reach the same end, for example tone curves and tone sliders (I prefer curves, because Photoshop forced me to understand them, and Bruce Fraser's books explained them). IRD is especially highly rated by black & white aficionados, but, typically, I don't use it to B&W conversion. I tend to open RAW files in batches of related images, by selecting them in MediaPro, right-clicking and opening in IRD (this works as well for Olympus Studio or Camera RAW, but not very well for CaptureOne – ironically, since there is some sort of marketing alliance between CaptureOne and iView…well, there used to be, pre-Microsoft). Once the photos are open in IRD (note how I use "photo", "file" and "image" interchangeably), they can be selected from the open files drawer, and processed in turn. I won't go into detail on how I use IRD here, but my default settings for E-1 ORFs include using light "Difference of Gaussians" sharpening as "capture sharpening" – although I'm beginning to wonder if multi-stage sharpening is necessary considering the lack of artifacts IRD introduces – and using ProPhoto as the working colour space, and Joe Holmes' ExtaSpace as output space. My principal output files are 16 bit TIFFs, which I save in a temporary holding folder called "IRD Output". I also sometime process directly to JPG for print or web, but for my web galleries I use a set of Photoshop actions (coming later).

irdscreen.jpg

Iridient RAW developer



Stage 4: Post-processing
Currently I use Photoshop (.PSD) format as my final archive format, for fully processed images. There are several reasons for this, number one being layers, although even I'm not using any layers, I still save as PSD for consistency – if I see a PSD file, I know it is "finished", or at least it has been worked on. The second reason is that at least 25% of my output is still film-based, and my film workflow always culminates with Photoshop. I don't know of any compelling reason to change this practice. Therefore, I open all files from "IRD Output" in Photoshop, and at a minimum save them as PSDs on another disk volume, which is my "finished work" repository. Here, I simply maintain a folder for each month, and save the file into the current month's folder (I use MediaPro, not the filesystem, to catalog, so it doesn't matter if a photo I took in March 2005 ends up in the January 2006 "finished" folder). Depending on the photo, there are several things I might do in Photoshop. Generally, I will have sorted out tone in IRD, but I might run a local contrast enhancement action to see if it adds anything (I have evolved a variety, which act on different tonal ranges as necessary – usually I find excluding highlights is a good idea). Noise reduction is often required on E-1 files taken at 800 ISO or over, sometimes at 400 as well. For this I use the Noise Ninja plug-in. If I decide to convert to black and white, I use the Convert to BW Pro plug-in on a layer. I save files unflattened, although I might compact things a bit if they get out of hand. The "finished work" gets cataloged in my "reference" MediaPro catalog, where I add detail metadata, and construct various sub-catalogs and sets.

Stage 5: Output to Web and Print
Output requires sharpening and sometimes scaling. If I'm outputting to print, I take the PSD file, and set the output size as necessary. If the resolution drops a bit below 240dpi, I will scale up using Photoshop, but if it is well below, I use SizeFixer SLR. Once I get to the target size, I use Photokit Sharpener to apply output sharpening (note, for SizeFixer, it appears that sharpening before scaling is quite successful, but how Photokit's algorithms react to this, I'm not sure. Whatever – if it looks right, it is right). I then flatten the file, and save it as a copy to a temporary print folder, where ImagePrint picks it up. For my web galleries, I run an action which converts to 8bit, sRGB, then creates three different sizes of the file, appropriately sharpened, in an output folder hierarchy. The largest files are managed in a MediaPro catalog, and this is synchronized with my online mySQL database using a set of Applescripts, which glue MediaPro, MacSQL and Transmit FTP together. There are ways of using scripting additions to do the SQL and FTP parts, but they are complex, and not worth the trouble to me. The Applescript is very specific to my configuration, but I'm happy to send it to anybody who would be interested to see if they can adapt it.

So that's basically it. It takes longer to write about than to do it. The foundation stone is obviously MediaPro, which is a very powerful, but subtle application. The fact that Iridient RAW Developer constrains itself to doing one thing very well makes it very easy to introduce into a composite workflow. And Photoshop remains Photoshop... At some point I will follow up with my film-based workflow, but it isn't really so different.
Posted in Olympus E-System on Thursday, August 03, 2006 at 02:58 PM • PermalinkComments (6)

Silverfast DC-Pro for E-1 RAW

in Olympus E-System , Monday, February 07, 2005
Lasersoft Imaging is a company with an impressive pedigree in digital imaging. For years, their Silverfast software has been the gold standard in scanning software, supporting a huge range of scanners with a sometimes bewildering variety of options and configurations. From low end consumer devices to high end drum scanners, Silverfast has it covered. Many hardware providers have given up on their software, and either bundle just Silverfast or provide alongside a token face-saving effort of their own. Silverfast is extremely powerful and with some experience can be used to extract the best from scanners, especially film scanners. However, it isn't exactly a usability paragon (although it is better than its only serious rival, the cranky and bug-ridden Vuescan). Since Silverfast is basically a generic image enhancement application layered on top of a device driver, it didn't take a huge leap of imagination to work out that the device driver could be a RAW decoder. And hence a new range of Siverfast variants, the DC range aimed at digital cameras. As a long-time Silverfast Ai user, since Lasersoft claim to support the E-1, I've been tempted to try it for some time. There are 4 variants to Silverfast DC - DC-SE, DC-VLT, DC Pro, and DC Pro Studio. DC SE is the basic version, bundled with some cameras (e.g Leica Digilux); DC-VLT includes the VLT (Virtual Light Table), a RAW engine limited to 24 bit output, and the full, sometimes overwhelming set of image adjustment utilities. DC Pro is the same (also includes VLT) but supports 48 bit output. DC Pro Studio adds some extra features to DC Pro, for example the clone tool, which is I think unique in RAW converters, allowing dust and hot pixels to be removed at the conversion stage. Confused ? Well we've hardly started on Lasersoft's Byzantine product segmentation! Anyway, the main thing to remember is that we have effectively two loosely coupled applications. VLT is essentially for selecting, organising and managing digital images, DC is for processing them, although the boundaries are a bit blurred. The functionality of the VLT depends to some extent on the version. You switch between the two but you cannot have both on screen at the same time. The reason for this is, I suspect, a legacy issue, as the DC series are really a bolt-on to the Ai scanner series. However, the VLT isn't bad at all, once you get used to it. It is fast and responsive, highly customisable, and in my opinion better than Photoshop's File Browser. You can use VLT to select photos from the file system and sort them into any number virtual albums, you can queue images for background processing, and a host of other things, but it must be said that certain features, such as batch processing, are as clear as mud. In many ways VLT combines the best of Olympus, PhaseOne and Adobe's features, but one thing missing is the ability to compare several previews at once. It does avoid imposing its own idea of the world, unlike C1 with its annoying sessions concept. The only drawback is, as I said before, the fact that you have to switch to another application to apply corrections. VLT has also a very complete EXIF browser, one of the best I've seen. vlt.jpg
Silverfast's Virtual Light Table Unfortunately it is when you switch to the (confusingly named) "Silverfast" application that the early promise starts to fade. The initial images presented look quite strange, apparently because Silverfast doesn't use the in-camera white balance. Bringing up the same image simultaneously in Olympus Studio 1.2, C1 SE v3.6 and Silverfast gives almost identical results in the first two, and a completely different rendition in Silverfast. Silverfast does seem to bring out better shadow detail than the other two, but at the expense of a bizarre colour balance which is all but irretrievable, even with the fast power of the image correction tools on offer. DC-Pro, unlike DC-VLT, appears to use the Olympus RAW internal thumbnails (with DC-VLT, thumbnails are generated by VLT, like in C1). Ironically, when you first open an image in Silverfast DC Pro, a very nice looking preview - generated from the thumbnail, I assume - flashes up, only to be overwritten by the above-mentioned oddity. dcpro.jpg
The Silverfast image adjustment application A core feature of the generic Silverfast range is color managed workflow. Silverfast allows you to - indeed encourages you to - calibrate your scanner against a supplied target. DC-Pro also includes camera calibration features, and a supplied target. This really would be a winning feature, except for the fact that even Lasersoft themselves point out that camera calibration is so dependent on external factors that it is of little use except in controlled shooting conditions. It is an interesting feature to have, but it may be at the root of the problem which Silverfast has with the E-1: the interpretation of the RAW data is based on camera profiling, and it appears that with the E-1 at least, Lasersoft have got this seriously wrong. The adjustment tools do allow a reasonable rescue operation to be mounted, but this requires first going to another application to read the in-camera white balance, and to generate a reference image to try to match. All a bit pointless really. For those unfamiliar with the scanner versions, Silverfast also includes some strange-seeming options, such as a Descreen filter. Very useful for scanning printed paper, but not much called for in RAW processing. In the same menu as this unlikely option are the sharpening (USM) tools, and another hangover from film scanning, the GANE grain reduction tool (which can't be applied at the same time as USM!). This, at least, can be used for noise reduction - except that there is a noise reduction slider in the Picture Settings widget (which only comes with DC Pro Studio, as far as I know - even more confused ?). All this needs a serious tidying up operation. DC-Pro Studio adds yet more mayhem, with a more flexible sharpening tool, the above mentioned clone tool (which actually includes a texture matching option putting it on a par with Photoshop's healing brush), and the AACO Auto Adaptive Contrast Optimisation tool, "for the correction of dark, high-contrast areas of the image while preserving the details in the highlights". AACO is a newcomer to Silverfast's vast acronym collection. It seems quite useful, but the early version in Ai Studio was buggy. A final point is that it isn't quite so clear where in the processing these tools are applied. Mac and PC trial versions of all DC Pro variants are available from Lasersoft. The trial is fully functional but imposes a watermark on final output. It does allow one very positive point to be seen - apparently Lasersoft have managed to avoid the dreaded "tetris effect" in bright reds which plagued earlier versions of C1 and others. dcpro2.jpg
300% zoom in Photoshop of Silverfast converted RAW - no Tetris! Silverfast is especially interesting because it offers the promise of a one-stop, integrated solution for both digital and film-sourced raw image processing. It is competitively priced compared to alternatives such as C1, and unlike any other rival it matches and sometimes goes beyond Olympus Studio's organising features. The Silverfast correction tools are really all-encompassing, and in some areas, for example the ability to simultaneously adjust individual RGB or CMY channels, way ahead of Photoshop. A free rotate tool similar to C1's would really complete the package. However the transition from scan correction to RAW adjustment software has been handled clumsily, and needs a serios rethink. There are far too many ambiguous, redundant or plain irrelevant featires. But for Olympus E-1 owners, at present colour fidelity is a showstopper. Lasersoft have stated on the Silverfast forum that fixing the GUI is a priority. If they can fix a few other things, improve E-1 profiling, and try to separate out specific film scanning features from specific digital RAW adjustment features, then they may still be well worth watching.
Posted in Olympus E-System on Monday, February 07, 2005 at 05:37 AM • PermalinkComments (1)

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