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The Pentax D HD FA* 85mm f/1.4 is a tele lens for FF and APS-C, manufactured from 2020. The focus is done by Ultrasonic AF Motor (Ring-USM), it does not have image stabilization. The average price, when it has been added to the JuzaPhoto database, is 1920 €;
5 users have given it an average vote of 10.0 out of 10.
This lens is available with the following mounts:
Pentax: this lens is compatible with reflex fullframe and APS-C Pentax.
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Pros: Sharpness, CA control, quick autofocus, AW, build quality, bokeh, performance in infrared spectrum, negligible coma in extreme corners
Cons: weight, size
Opinion: I think the best way to review Pentax star lens is to make comparison with another highly regarded one, so this is not scientific comparison of DFA* 85/1.4 and FA* 85/1.4. All images are shot at f1.4, presented in Lightroom and are screenshots.
FA* 85/1.4 seems marginally softer at 100 percent magnification, has some kind of glow.
FA* 85/1.4 renders out-of-focus background objects a little bit "harsher" if this word could be applicable here.
But FA*85 has more "blurry" foreground bokeh at f1.4, maybe due to lower contrast. Highlights are more round at the peripheral part of the frame using DFA*85 (could be less mechanical vigneting).
DFA* 85/1.4 is sharper in the peripheral part of the frame, it seems spherical aberrations are more pronounced in FA* 85.
FA* 85 has more purple fringing and in case of not very contrast situations that fringing looks like purple glow.
DFA* 85/1.4 is no doubts better than FA* 85/1.4 wide open if shot against bright sky. 100 percent crop.
Longitudinal CAs: they are here at f1.4 - more for FA*85, much less for DFA*85. Almost not visible at "normal" view on the monitor screen, but visible at 100 percent magnification.
Lateral CAs: I would say NO lateral CAs for DFA*85, but visible for FA*85.
Both types of CAs are easy to correct in Lightroom for DFA*85, because at f1.4 the lens is very sharp and has no glow, but difficult to correct for FA* 85. CAs differ in color: DFA*85 has aqua/rose-red CAs, FA* - green/purple.
According to tests on www.lenstip.com, I would say that just Zeiss Otus 85/1.4 is better in aspect of CAs,
Sigma Art 85/1.4 and Zeiss Milvus 85/1.4 is on par with DFA*85/1.4.
Other lenses - Sony FE 85/1.4 GM, Canon EF-S 85/1.4 are not bad,
old Sigma 85/1.4 and Nikon Nikkor 85/1.4 G are much worse.
Overall even the lens is heavy it balanses on K-1 very well. It is not much bigger than DFA*50/1.4 if the hood is not attached, but little more thicker.
So, Pentax made excellent new optical design lens, that seems on par with Zeiss Otus, but half the price and with autofocus, as well not so chunky (filter thread 82 vs 86 mm).
Pros: beautiful, quality, huge, amazing, much better than the perfect DFA 50 / 1.4.
Cons: Zero. I can not wait.
Opinion: It looks absolutely amazing. I have to have it. I will write a short review. Here are the first impressions. www.youtube.com/watch?v=0cgrkJmDgXw
The 85mm F1.4 contains a total of 12 elements, including 'Super ED' and aspherical glass. An HD coating is used to reduce flare and ghosting. The lens has a new ring-type SDM lens motor to drive the focusing elements, which delivers 1.3x more torque than the motor on the 50mm F1.4, according to Ricoh. The lens has a nine-blade aperture that is electronically controlled.
Minimum focus distance is 0.85m (2.8ft) and the maximum magnification is 0.12x. It's sealed against dust and moisture in eight places (that's the 'AW' designation - standing for 'All Weather') and can be used in tough conditions when paired with a weather-resistant Pentax camera.
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