Upload & Sell: On
I currently own the 28 + 21mm converter. It's serviceable, especially stopped down to f/11. But it doesn't have biting sharpness anywhere, and the sunstars are difficult to invoke and mediocre. I also have an A-mount Sigma 20/1.8 that's not really very good at all for landscape use, even stopped down.
I'm considering the Firin 20 and (obviously!) the holy-grail Loxia 21.
I want to buy the Firin since it's faster and can be pressed into use for nighttime / astro / aurora photography. But I hear it's not really quite good enough at f/2, and that images aren't as sharp as...Show more →
Read the thread that Guy linked to above.
But here's my take from that thread (I have the Lox, but haven't myself used the Firin)
(1) I doubt there's much sharpness difference between then at shared apertures. Both are outstanding.
(2) I much prefer the sunstars on the Lox to those I have seen, and would expect given the iris, on the Firin
(3) The Lox performs a bit better against the light
(4) the Firin is 100g heavier and a bit larger
Given all that I personally would still buy the Lox; I care about sunstars and against the light performance, I care about weight on long hiking trips, and I have no real use for f2 on a 20mm lens. (Unless for iccasional Astro if I didn't have something else for that - and the Firin has a bit more coma than ideal for that)
The Firin is much cheaper, and I think probably in no way worse when the sun isn't in (or near?) the image - so it could be a great quality inexpensive lens for landscapes and interiors.
Edited on Mar 20, 2017 at 09:18 PM · View previous versions