• site home
  • blog home
  • galleries
  • contact
  • underwater
  • the bleeding edge

the last word

Photography meets digital computer technology. Photography wins -- most of the time.

You are here: Home / GFX 100 / Megapixels, smart resizing, and printing — PhotoZoom Pro 8

Megapixels, smart resizing, and printing — PhotoZoom Pro 8

August 31, 2019 JimK 1 Comment

While not directly about the camera, this is one in a series of posts that relates to the Nikon Z6. You should be able to find all the posts about that camera in the Category List on the right sidebar, below the Articles widget. There’s a drop-down menu there that you can use to get to all the posts in this series; just look for “Nikon Z6/7”. This is also relevant to the Fuji GFX 100; for other posts about that camera, look at Category “GFX 100”. This is also a continuation of testing that I’ve been doing on the Epson P800 printer. I’ve created a category called “Printers”, and put this post in that category. If you go to the Category List (on the right in the desktop formatting), find “Printers” and click on it, you’ll see all the posts in that series.

In the previous four posts, we looked at the results of resizing files from three different camera/lens combinations:

  1. Fujifilm GFX 100, Fuji 110 mm f/2 lens, set to f/5.6. That’s not the sharpest aperture for that lens, but the sharpness is not far down from its best there.  Lightroom sharpening amount = 20, radius = 1, detail = 0. Image height is 8776 pixels and image area is 101 megapixels.
  2. Nikon Z6, FX mode, Zeiss Otus 85 mm f/1.4 lens, set to f/4. That’s not the sharpest aperture for that lens, but the sharpness is not far down from its best there.  Lightroom sharpening amount = 30, radius = 1, detail = 0. The increase sharpening is to compensate for the (weak) AA filter on the Z6. Image height is 4000 pixels and image area is 24 megapixels.
  3. Nikon Z6, DX mode, Zeiss Otus 55 mm f/1.4 lens, set to f/2.8. That’s pretty close to the sharpest aperture for that lens.  Lightroom sharpening amount = 30, radius = 1, detail = 0. The increase sharpening is to compensate for the (weak) AA filter on the Z6. Image height is 2780 pixels and image area is a bit less than 12 megapixels.

If you haven’t already done so, please at least skim the earlier posts. Here’s the first one. Here’s the second one, in which Gigapixel AI came out on top. Here’s the third one, which looked at Alien Skin Blow Up. 

A reader recommended PhotoZoom Pro 8. I tried it, and I’ll post some crops along with those from the current winner — at least, the current winner in my book — Topaz Gigapixel AI.

 

GFX 100, 110 mm f/5.6

 

Z6, FF, 85mm f/4, resized with PhotoZoom Pro 8

 

Z6, FF, 85mm f/4, Resized with Topaz Gigapixel AI

 

Z6, APS-C, 55mm f/2.8, resized with PhotoZoom Pro 8

 

Z6, APS-C, 55mm f/2.8, Resized with Topaz Gigapixel AI

This is a credible result. How about with some natural parts of the test image?

GFX 100, 110 mm f/5.6

 

Z6, FF, 85mm f/4, resized with PhotoZoom Pro 8

 

Z6, FF, 85mm f/4, Resized with Topaz Gigapixel AI

 

Z6, APS-C, 55mm f/2.8, resized with PhotoZoom Pro 8

 

Z6, APS-C, 55mm f/2.8, Resized with Topaz Gigapixel AI

I think the Topaz product is a bit better, but they’re very close.

GFX 100, 110 mm f/5.6

 

Z6, FF, 85mm f/4, resized with PhotoZoom Pro 8

 

Z6, FF, 85mm f/4, Resized with Topaz Gigapixel AI

 

 

Z6, APS-C, 55mm f/2.8, resized with PhotoZoom Pro 8

 

Z6, APS-C, 55mm f/2.8, Resized with Topaz Gigapixel AI

Again, close. I prefer the Gigapixel AI renderings, which look less artificial to me. This is especially true in the last pair.

As you can see by the watermarks on the PhotoZoom images, I didn’t pay for a license. Based on what I’m seeing here, I might do that.

 

GFX 100, Nikon Z6/7, Printers

← Megapixels, smart resizing, and printing — Alien Skin Blow Up Megapixels, smart resizing, and printing — viewing distance and printer considerations →

Comments

  1. Ramon Pruneda says

    August 22, 2021 at 11:50 am

    Hi, I came to your website why I was looking for reviews of the products you mention in this post. After doing some testing with both, my conclusion is that they are good software for resizing images, few differences in terms of the end result.
    Possibly “PhotoZoom” is more agile and friendly, I also think it is more faithful to the original file, “Topaz Gigapixel” also works very well, but added as a kind of small layer of focus and contrast. That’s not bad, but I’d rather leave the image as the original.
    “Topaz” works wonderfully on geometric images, but it’s not the photos I normally take.
    Thanks for your information, it has been very helpful to me.
    Greetings.

    Reply

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

May 2025
S M T W T F S
 123
45678910
11121314151617
18192021222324
25262728293031
« Apr    

Articles

  • About
    • Patents and papers about color
    • Who am I?
  • How to…
    • Backing up photographic images
    • How to change email providers
    • How to shoot slanted edge images for me
  • Lens screening testing
    • Equipment and Software
    • Examples
      • Bad and OK 200-600 at 600
      • Excellent 180-400 zoom
      • Fair 14-30mm zoom
      • Good 100-200 mm MF zoom
      • Good 100-400 zoom
      • Good 100mm lens on P1 P45+
      • Good 120mm MF lens
      • Good 18mm FF lens
      • Good 24-105 mm FF lens
      • Good 24-70 FF zoom
      • Good 35 mm FF lens
      • Good 35-70 MF lens
      • Good 60 mm lens on IQ3-100
      • Good 63 mm MF lens
      • Good 65 mm FF lens
      • Good 85 mm FF lens
      • Good and bad 25mm FF lenses
      • Good zoom at 24 mm
      • Marginal 18mm lens
      • Marginal 35mm FF lens
      • Mildly problematic 55 mm FF lens
      • OK 16-35mm zoom
      • OK 60mm lens on P1 P45+
      • OK Sony 600mm f/4
      • Pretty good 16-35 FF zoom
      • Pretty good 90mm FF lens
      • Problematic 400 mm FF lens
      • Tilted 20 mm f/1.8 FF lens
      • Tilted 30 mm MF lens
      • Tilted 50 mm FF lens
      • Two 15mm FF lenses
    • Found a problem – now what?
    • Goals for this test
    • Minimum target distances
      • MFT
      • APS-C
      • Full frame
      • Small medium format
    • Printable Siemens Star targets
    • Target size on sensor
      • MFT
      • APS-C
      • Full frame
      • Small medium format
    • Test instructions — postproduction
    • Test instructions — reading the images
    • Test instructions – capture
    • Theory of the test
    • What’s wrong with conventional lens screening?
  • Previsualization heresy
  • Privacy Policy
  • Recommended photographic web sites
  • Using in-camera histograms for ETTR
    • Acknowledgments
    • Why ETTR?
    • Normal in-camera histograms
    • Image processing for in-camera histograms
    • Making the in-camera histogram closely represent the raw histogram
    • Shortcuts to UniWB
    • Preparing for monitor-based UniWB
    • A one-step UniWB procedure
    • The math behind the one-step method
    • Iteration using Newton’s Method

Category List

Recent Comments

  • JimK on Calculating reach for wildlife photography
  • Geofrey on Calculating reach for wildlife photography
  • JimK on Calculating reach for wildlife photography
  • Geofrey on Calculating reach for wildlife photography
  • Javier Sanchez on The 16-Bit Fallacy: Why More Isn’t Always Better in Medium Format Cameras
  • Mike MacDonald on Your photograph looks like a painting?
  • Mike MacDonald on Your photograph looks like a painting?
  • bob lozano on The 16-Bit Fallacy: Why More Isn’t Always Better in Medium Format Cameras
  • JimK on Goldilocks and the three flashes
  • DC Wedding Photographer on Goldilocks and the three flashes

Archives

Copyright © 2025 · Daily Dish Pro On Genesis Framework · WordPress · Log in

Unless otherwise noted, all images copyright Jim Kasson.