Hi everyone, I’ve reached out to Topaz technical support directly by email several times and they have not responded to me at all after asking me to provide more evidence of the issues I was facing. I hope sharing on this discussion board here might help me reach someone in Topaz.
I’ve noticed that the zoom percentage steps in Topaz Studio does not allow me to specify exact steps of 200%, 300%, 400% etc. There is a shortcut to 100% zoom, then the next interval is 125%, 156.2%, 195.3%, 244.1% etc. The zoom slider’s resolution allows for smaller varying steps, but the slider’s resolution is not fine enough to set something like 300%, rather I can get 299.8% and that’s it. It is vital that the zoom intervals are in whole steps so that the preview isn’t interpolated and thus would cause difficulty with judging sharpness. Steps of 200%, 300% etc should only use nearest neighbour enlargement to preserve the original pixels’ values for the optimal preview effect.
In addition, I’ve noticed that the previews in Studio have a weird cross-hatching artifact in the grain pattern of the image, which is not present once the image is saved out. Also, the preview image is very blurry at zoom percentages over 100. Turning on ‘HD Preview’ does not improve the preview quality in this case. No adjustments are applied at all, I’m just simply importing an image into Studio.
Lastly, I’ve noticed that Topaz Studio applies relatively strong noise reduction (that’s the only difference I can spot thus far), simply by importing a TIFF image with no adjustments applied at all in Studio, and then saving the file out again. Perhaps the program is doing some pre-processing to remove hot or stuck pixels, but it should not do anything to my image if I have not applied any adjustments yet.
These are pernicious issues which affect all Studio users regardless of what they intend to use the program for and need to be addressed ASAP. I am attaching an illustration to demonstrate the issues. The attached JPEG shows them side by side: original TIFF image zoomed in to 300%, same file just imported and saved out of Studio with zero adjustments, and also the preview window of Studio.
Here is a Google Drive link to a layered TIFF of the same images, which allows for a much easier visual comparison by turning the visibility of each layer on and off in a program like Photoshop: https://drive.google.com/file/d/1a6x33Hp3TbM7v8sP0To0QiCci0Dj3k63/view?usp=sharing
I hope that one of the developers will take note of these issues and address them. Thank you very much for you time.