Screencast: Fujifilm GFX100 II White Stripe and Yellow Hot Clumps — Visible in Color, Awful in Monochrome
Related: black and white, Contrast and Phase Detect Autofocus, fairy dust aka hot/stuck pixels, focusing, Fujifilm, Fujifilm GFX100 II, Fujifilm medium format, Fujifilm mirrorless, medium format, Photoshop, videos by Lloyd
re: videos by Lloyd
The obnoxious yellow hot pixels at ISO 80 in this monochrome conversion end up as white clumps littering some areas of the image like mushrooms after a rain.
Reader Jason W pointed-out these yellow pixel clumps to me a month or so ago... I had not realized just how nasty they can be in a monochrome conversion. They are in fact related to the horizontal white stripes issue as the root cause—all falling on the same white-stripe line, as a ruler in Photoshop quickly establishes.
You might reasonably ponder when if ever we will see an actual professional-quality offering from Fujifilm. These image quality defects are ridiculous for a “pro” camera. At least for landscape photography.
Will you see them? Judge for yourself in the video, link further below.
For the vast majority of images the eye will not perceive any issue; yellow clumps of 3 or 4 pixels tend to disappear among image details. But these are all 100% digital artifacts, unreal non-existent made-up junk, completely unacceptable in a professional camera, IMO. Difficult to unsee with some images.
With monochrome conversions, it’s the same old headache I’ve been reporting since 2019. I would think that any large-print monochrome enthusiast proud of producing a first rate image would find them very troubling.
PDAF pixels (if that is indeed the root cause) are a negative value for landscape photography, because of both image quality defects as well as focusing errors (fast but unreliable)—not only unnecessary but worse than useless.
Fujifilm: ditch the image-crapifying PDAF sensor and offer us a PDAF-free camera!
You get what you pay for—compromise on price and down comes the quality. In no way is the Fujifilm GFX100II/100/100S on the same level as the PhaseOne IQ4 150, which has no PDAF pimples. I cannot afford an IQ4 150 nor would I want to carry one, so like most of you I just have to live with these shitty results.
See the pair of images below... subscribers can login and then view at up to full-res.
Fujifilm GFX100 II + Fujifilm GF 55mm f/1.7 WR @ 45.3mm equiv (55mm)
ENV: North Peak of Mt Conness, altitude 10400 ft / 3170 m, 35°F / 1°C
RAW: Adobe Color, LACA corrected, WB 5100°K tint 22, push 1 stops, +100 Shadows, +40 Dehaze, +10 Clarity, diffraction mitigating sharpening
[low-res image for bot]
Fujifilm GFX100 II + Fujifilm GF 55mm f/1.7 WR @ 45.3mm equiv (55mm)
ENV: North Peak of Mt Conness, altitude 10400 ft / 3170 m, 35°F / 1°C
RAW: Adobe Color, Enhance Details, LACA corrected, WB 5100°K tint 22, push 1 stops, +100 Shadows, +40 Dehaze, +10 Clarity, AI Denoise 10, diffraction mitigating sharpening
[low-res image for bot]
Video showing the issues
At my Patreon account (by subscription) in Pro Photography Workflow:
Fujifilm GFX100 II White Stripe and Hot Pixels Issues
Or here in diglloyd Medium Format:
Fujifilm GFX100 II White Stripe and Hot Pixels Issues
The video shows the images at 2X linear enlargement for ease of viewing on Retina displays; it is the equivalent of viewing on a 110 ppi display like the NEC PA302W.
