
Hotel de Ville
Panorama of Hotel de Ville stitched in PS CS5 and processed in SEP2. The larger version is well worth viewing here.
The program works as a plug-in for Photoshop, Lightroom and Aperture. After completion of work in Silver Efex, the result is affected through a single layer in Photoshop. There is an informative starter’s guide to the software as well as numerous tutorials on the Nik website. The purpose of this article is not to give a how-to guide but rather to give readers some idea about how it is relevant to my current digital workflow.
Let me start by saying that if you do a lot of work in monochrome, whether at an advanced or beginner level, SEP2 should strongly be considered. Even without reading the guide, I was able to achieve better results than what done in 20 minutes in photoshop the first time I used SEP2. I have already taken advantage of the recent “Black Friday” specials to purchase my copy. In the meantime, the full-featured 15 day demo version is currently installed on my MacBook Pro.
The powerful algorithms used to tweak contrast and bring out details have saved me a great deal of time. Even after only using the program for a few days, I am getting superior results over CS5 in a fraction of the time. I suspect similar results to the conversions done in SEP2 could be achieved using Photoshop alone but it would require greater skills than I possess and a lot more time on my hands.

SEP2 Workspace
Larger version of the workspace can be seen here.
Before applying the plug-in, I prepare the RAW file much the same way as I do for colour and BW conversions in CS5. The SEP2 workspace feels very similar to Adobe Camera RAW and Lightroom, with many of the controls in the form of sliders. There are three main types of adjustments that can be made : brightness, contrast and structure. You can arrive at some very good results just using these three sliders, however each can be subdivided into more sliders which selectively affect different tonal ranges. Local adjustments can be made placing control points on the image.
What SEP2 does brilliantly, mainly through the ‘structure’ adjustment slider, is bringing out detail and textures. This can result in an over-sharpened look when used over-zealously but it’s such a powerful tool when used well, alone justifies the asking price of the software.

The Vigil (triple processed RAW)

The Vigil (Conversion in CS5)

The Vigil (Conversion in SEP2)
“The Vigil” is a classic view over Paris. I prepared the image for conversion by first triple processing a single RAW file and hand-blending them : a darker exposure for the sky, a lighter one for the city and an even brighter one for the gargoyle which was very dark due to the effects of the ND grad filter. The result you see is was achieved in SEP2 after only using the software for the first time. I have deliberately cranked up the structure slider to the point of an over-sharpened appearance to show the sort of details and textures SEP2 is able to pull out. A comparison with my Photoshop CS5 effort (which took much longer to process) is provided and best appreciated in these links to higher resolution versions : CS5 and SEP2. A good area to see the difference is the paving in the square shown at 100% below.

The Vigil at 100% (CS5)

The Vigil at 100% (SEP2)
The presets proved to be very useful; these are found on the left had column of the workspace. In addition to their raison d’etre of being time-savers, these turned out to be invaluable in giving me more ideas. Even though, I would have already visualized the end-point I want, seeing 38 other finished examples allowed me to be more open to other possibilities. A strategy I often use is picking one of the presets as a starting point which I then tweak further till I’m satisfied with the result. This screenshot featuring a street scene from the northern Italian town of Vicenza shows that I have selected the preset “High Structure”. Some of the master sliders (contrast and structure) have been opened up to reveal other sliders to fine tune effects according to tonal range. A cool feature at the bottom right is the ability to display which areas of the image fall into Ansel Adams’ zone system categories.

"High Structure (harsh)" Preset
Link to large version of the above screen shot found here.

Eternal City (SEP2)
The next example “Eternal City” is a view of the Pantheon in Roma. You can make levels and curves adjustments in SEP2 but a more interesting feature is being able to select one of many simulated film types. I’ve plumbed for Agfa Pro 100 on this occasion. There are also a number of finishing adjustments including colour toning, vignetting options, and a wide variety of preset borders.

Film Types and Finishing Adjustments
Link to larger version of the above screenshot found here.

Four-Legged Customer
This next example “Four-Legged Customer” shows a cafe scene from the charming Ile St Louis in Paris. I used the preset “Antique Plate II” as a starting point. Since the dog is the focal point of the composition and story, I wanted to make it stand out more with some additional brightness and definition. Using a control point placed over the dog, I increased the contrast, brightness and structure sliders to make these local adjustments.

Four-Legged Customer with local adjustment
My final example is a landscape photograph of the iconic Moraine Lake in the Canadian Rockies. Here I have applied Silver Efex over my previous monochrome conversion in CS5.

The Winter Fortress (CS4)

The Winter Fortress (conversion in CS4 with additional processing in SEP2)