Ο Ιάπωνας reviewer επιβεβαιώθηκε για τα υψηλό CA/ αστιγματισμό και από το πολωνικό Lenstip στο review που δημοσίευσε για τον νέο mZuiko 20/1.4,"………….
Επισης βάζω ένα review από Ιαπωνικό site (ο reviewer δείχνει επιμελής και προσεκτικός με αρκετή εμπειρία στα review του) για τον νέο mzuiko 20/1.4 , βάζω το τμημα που ενδιαφέρει με τα συγκριτικα δείγματα :
M.ZUIKO DIGITAL ED 20mm F1.4 PRO レビューVol.2 遠景解像編
このページではOM SYSTEM「M.ZUIKO DIGITAL ED 20mm F1.4 PRO」の遠景解像…asobinet.com
Στα μακρινά (near infinity) δείγματα στις άκρες ο φακός παρατηρεί ότι έχει αρκετό field curvature που έχει ως αποτέλεσμα αδύναμα άκρα.
Βέβαια δεν είναι κατΙ που θα ενοχλήσει αυτούς που απευθύνεται κυρίως ο φακός. Αν όμως κανεις τον αγοραζει και για τοπία κλπ. ας το έχει στα υπόψην. Καλό είναι να δούμε και αλλά τεστ γιατί αυτό το τεστ αφορά μια κόπια και μόνο.
Εχει και κοντινά δείγματα εδώ : https://asobinet.com/inf-review-m-zuiko-digital-ed-20mm-f1-4-pro-res-chart/, τα παει πολύ καλύτερα , από μεταφραση :
Compared to the distant resolution test, wide-open performance is drastically more stable (in close distance resolution test). The resolution performance is not outstanding per-se, but there is no doubt it's reliable. However, the effects of some aberrations remain and the image looks a bit softer than what I expected to see wide open. I would not say that the cost-performance is the best, in terms of pure resolution Olympus 25 F1.8 is better. When talking about resolution performance stopped down, Panasonic Leica 25mm F1.4 II produces sharper looking image."
This does not mean that the lens has poor resolution, and unless you pixel peep, I think it would be rare that you would be bothered by it. For practical purposes, the lens has sufficient resolution. However, I personally feel that the claim that OM Digital makes about accomplishing soft feathered bokeh and high-resolution at high level might be an overstatement for this lens. In this regard, F1.2 Pro series have done very well (excluding 25mm F1.2 Pro). Because of their previous achievements with F1.2 Pro lenses, perhaps my expectation of 20mm F1.4 was a little too high. "
The appeal of this lens is the [beautiful feathered bokeh] that they tried to design intentionally, so I want to take a close look at the bokeh quality of this lens in the next review."
σε αγγλική μετάφραση από τα πολωνικά τμημα του που αφορά τα συμπεράσματα :
Advantages
shapely, solid and sealed casing,
great image quality in the frame center,
moderate distortion,
correctly corrected coma,
decently corrected vignetting,
nice out of focus look,
quiet, lightning-fast and accurate autofocus.
Defects:
problems with chromatic aberration,
the image quality at the edge of the frame should be better,
a bit too much astigmatism.
I have mixed feelings writing this summary. On the one hand, the OM System M.Zuiko Digital 20 mm f / 1.4 PRO is a neat, well-made and sealed lens that will give us great image quality in the frame center, moderate vignetting and at the same time delight with the autofocus work culture. On the other hand, it recorded a lot of average results and two severe mishaps, which I did not expect from this type of instrument. In particular, I can't understand how a standard lens with 11 lenses, including four made of low-dispersion glass, can cope with both types of chromatic aberration on average.
By showing a new product under a new brand, everyone wants to make a successful debut and present themselves from the best side. The OM Digital Solutions company did not quite manage it, and the matter is additionally complicated by the fact that we have to pay the amount of PLN 3,190 for the new lens. It is several hundred zlotys more than for the PanLeika 1.4 / 25, more than twice as much as for the Panasonic 1.7 / 20 and four times more than for the Panasonic 1.7 / 25. So I do not predict the OM 1.4 / 20 will be a huge market success.
