Originally posted by Serkevan We don't know how it will perform. The previous Irix lenses seem to be good performers. The D FA* is beyond the means of many, if not most, photographers.
---------- Post added 03-10-20 at 11:44 AM ----------
The pricing can be more or less estimated from the previous lenses, but the performance? Who knows. It could be great. It could be okayish. Maybe it smokes the competition for astro because it's exceptionally good at controlling coma and has a very flat plane of focus. Maybe it will be utterly mediocre.
It's, at worst, a lens that's coming out on K-mount. Those are objectively good news.
Anything coming out in K mount is a good thing. I prefer to shoot with Pentax glass, but third party options can only help the brand by giving it visibility and credibility.
---------- Post added Mar 10th, 2020 at 09:25 PM ----------
Originally posted by pres589 I don't understand comparing this lens to the D-FA*50. My question is how much better the IQ is vs. the FA 43 and FA 50 1.4. Those lenses seem like they're more simlar in aim vs. the Fat 50. But even that isn't very fair; the 43 is tiny and has AF, the 50 1.4 is probably going to come in at noticably cheaper but maybe with IQ to match the price delta, etc etc.
Maybe this lens, like most things in life, should be evaluated on its own merits and we can cast asside the competition.
It really depends on the price point it comes in at. If it's a 400.00 lens, compare it to the FA lens. If it's an 800.00 lens, it needs to compare favorably to the D FA* lens.
Like it or not, price is part of the equation, otherwise its merits are purely optical, in which case we are back to that steep climb.
---------- Post added Mar 10th, 2020 at 09:29 PM ----------
Originally posted by BruceBanner Does the Irix 45 have an aperture ring tho? Wouldn't it deliver only 1.4 on film?
You need a camera that can control the aperture. One of the older bodies would work on program or shutter preferred auto. I'm not sure which film bodies have control wheels, but they would be able to control the lens the same way your DSLR does.