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PENTAX SMCP-FA FA 77mm f/1.8 Limited Aperture Series: Mosaic (Pentax K1 SuperRes)

See my Pentax K1 wish list at B&H Photo.

Pentax SMCP-FA 77mm f/1.8 Limited
Pentax K1

While designed for portraits, Pentax states that the 77/1.8 is applicable for landscapes and still life. Here we put “landscape” to the test: our subject is at a uniform distance, which is often the case for a landscape scene.

Pentax 77mm f/1.8 Aperture Series: Mosaic (Pentax K1 SuperRes + StdRes)

Includes images up to 28 megapixels and large crops, all from f/1.8 through f/9, all shot in SuperRes mode for optimal sharpness.

Also includes a StdRes shot at f/9 for comparison to SuperRes at f/9, which by serendipity shows Pentax K1 shutter vibration problems. This confirms a serious image quality issue (at 77mm!) already discussed in Pentax K1 Shutter Shake Evaluated at 140mm, Siemens Target.

I am dumbfounded that Pentax would use an EFC shutter in the K1 for SuperRes mode, but not offer the feature in StdRes single-shot mode. Maybe a firmware update will fix it, and maybe not. It is stupefying in its juxtaposition to the ground-breaking sophistication of pixel shift technology. How is it even possible for one camera to combine such contradictory approaches to image sharpness?

f4.5 @ 1/100 sec, ISO 100; 2016-05-11 19:31:55
PENTAX K-1 + smc PENTAX-FA 77mm F1.8 Limited

[low-res image for bot]

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