Originally posted by twitch The killer feature Silver Efex has that Topaz doesn't is control points. I use control points extensively in my conversions so I'm very sceptical that Topaz B&W could even touch what can be done in Silver Efex due to this factor alone.
Another issue I have with Topaz Adjust anyway, is that the usability of their sliders stink. As I drag a slider the application wants to reprocess the whole image and forces me to wait to see the results. This makes it very frustrating to adjust any settings away from a defined preset. The Nik pluggins OTOH are super slick and I can drag and change sliders smoothly without bogging down the app.
I come from a LR background and was anticipating being impressed when i got Silver Efex on a trial basis. I knew a club member who had high praise for it. They did seem to have a nice set of presets, but the localized points seemed much more cumbersome than LR's localized brushes.
I already own Topaz's Denoise, used it a lot, but had the same annoyance over the length of time doing the previews after slider adjustments that Twitch experienced. I once downloaded Topaz Detail and wasn't impressed with that. So i was prepared to be unimpressed when i downloaded Topaz BW Effects. But i think Topaz knocked it out of the park when they did BW Effects. Two things which opened my eyes, was that they have a micro-contrast feature called "adaptive exposure" which works effectively with another slider called "Regions". Regions slider tells the adaptive exposure how many sectors to divide the scene into. You can go from 1 region to double digits. And it makes quite a difference in the look of the scene.
Second thing that was a nice surprise was "vignetting". LR's vignetting is locked into the center of the picture. But in Topaz, you can put the center of the effect anywhere in the picture. Which allows one to create interesting lighting effects by putting what appears to be a major source of light anywhere you want it. Cool.
I like any new software to show me something that it can do better than any other piece of software i may have, and Topaz did that. Sliders still have some delay, but its been improved over my experience with Topaz Denoise.
I don't have enough experience with NEK Silver Effects to say that its worse than Topaz, only that Topaz had some pleasant surprises to it and i didn't get that feeling with Silver Effects. Also Topaz has a localized brush that was pretty nice in what it did.