Strasburg Rail Road’s preserved J-Tower made for an ideal static subject to test Nikon’s Z6-III image-making with f1.4 Nikkor lens at ISO 64000.
For point of comparison I made exposures at ISO 100 and ISO 64000.
I then converted the ISO 64000 image to a DNG format using DxO PureRaw which denoised the image while eliminating vignetting and other lens imperfections. I’ve enlarged the tower section of each image to make comparison easier.
My next Railroad Photography 101 Class at the Railroad Museum of Pennsylvania will be held on Saturday Dec 13, 2025 from 9 to 11am. The theme to this class will be working with holiday settings, including how to make better night train photographs.
Full frame image with Nikon Z6-III with f1.4 50mm at ISO 64000 and converted without changes to appearance from the original NEF RAW file.Enlarged portion of the above image with Nikon Z6-III with f1.4 50mm at ISO 64000 converted NEF RAW file.PureRaw-processed file. This was made from the same RAW NEF image as the above photos. It demonstrates the capabilities of the PureRaw software.Enlarged portion of PureRaw-processed file. This was made from the same RAW image as the above photos.Comparison image exposed at ISO 100. Note the lack of noise. This was not processed with Dxo PureRaw.Enlarged portion of the IS0 100 image.
