Re: Viltrox 23mm 1.4 vs Fuji 23mm f2 - Sample Images and Thoughts
Spazmaster wrote:
Well, I bought a used Fuji 23mm f2 after I was unhappy with the Viltrox 1.4. Results were a bit surprising. Viltrox 23mm is noticeably sharper at f2 in the center but much softer near the edges.
Thanks for posting the test. Yes, the difference seems significant! Sharper center. An oddity is that the Viltrox samples downsize better. Is that due to better low frequency MTF? I can't really judge edge sharpness very well from this set. It's true that the final two shots make the XF 23/2 look sharper, but rendition is so dark that the Viltrox produces more knot detail.
What mostly strikes me is that the XF 23/2 is darker. Either it underexposes or the Viltrox 23/1.4 overexposes. All photos at f/2 according to EXIF.
Ive noticed a strange issue with the Viltrox which Ive mentioned in other posts. If I take multiple shots so: Press shutter, keep composition, press shutter again. The last shots are usually MUCH sharper than the first, making me believe there is an issue with AF.
Firmware fix might help?
Im torn because I love the size and handling of the Fuji, Viltrox at 1.4 for me isnt super usable but its nice to have, and its sharper at f2 in the center. So a trade off of size and handling for the ability to shoot at 1.4 if needed, nut mainly I would be keeping it at f2.
If a prime isn't any faster than a zoom, it seems like a waste of money to me. The 16-55/2.8 is only a stop slower than the XF 23/2, the 18-55/2.8-4 maybe 1.5 stops. I would go for f/1.4.
Let me know your guys thoughts. These aren't scientific by any means, and I still have time to return the Viltrox so I may do more tests.
I would make the judgement based on stopped-down performance. We know the Viltrox has nervous bokeh at certain f-stops, but it hasn't been characterized as I recall.