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Test/ First Impression Pentax HD FA 43/1.9 limited edition with 44 MP S1Rii

dirk

LMF-Founder
Administrator
I have the newest version of the Pentax HD FA 43/1.9 limited edition. I use it on my Lumix cameras with a cheap K&F concept adapter. No contacts. Just a metal ring.

Since the Lumix S1Rii arrived this afternoon, I wanted to do a quick check how this lens performs on a 44MP sensor.

PXL_20250503_164253510~2.jpg
  • Google - Pixel 8 Pro
  • Pixel 8 Pro back camera 6.9mm f/1.68
  • 6.9 mm
  • ƒ/1.68
  • 1/1000000 sec
  • Center-Weighted Average
  • Auto exposure
  • ISO 457


I have to say I am really impressed. This lens gives excellent sharpness, even if you zoom in to the maximum on the camera display.

I do not have access to a PC atm, therefore I try to show it with images on my smartphone, transferred via Lumix Lab.

Since I can not upload 44MP files here, I show first the whole image via a screenshot of my smartphone and then a huge crop of the 44 MP image on the smartphone. Shot with 1/125s and F1.9

2 images at ISO 2000, 1 image at ISO 6400

Screenshot_20250503-184909.png

PS1R0031~2.jpg
  • Panasonic - DC-S1RM2
  • Pentax HD FA 43/1.9 Limited
  • 43.0 mm
  • 1/125 sec
  • Pattern
  • Manual exposure
  • ISO 2000


Screenshot_20250503-184920.png

PS1R0030~2.jpg
  • Panasonic - DC-S1RM2
  • Pentax HD FA 43/1.9 Limited
  • 43.0 mm
  • 1/125 sec
  • Pattern
  • Manual exposure
  • ISO 6400


Screenshot_20250503-184934.png

PS1R0029~2.jpg
  • Panasonic - DC-S1RM2
  • Pentax HD FA 43/1.9 Limited
  • 43.0 mm
  • 1/125 sec
  • Pattern
  • Manual exposure
  • ISO 2000



If I have more time I might do a side by side comparison with my Leica Q3 43 with similar resolution.

I like also the smooth bokeh of the Pentax lens. I am a little bit surprised, that the Pentax lens performs this well on a 44MP sensor, because it is an older design and only the coating was improved with this newest generation.

Chapeau, Pentax...
 
Last edited:
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