sunny2502 wrote:
可以去YouTube(恕刪)
robinwong有比較過其實好接近
htthttps://robinwong.blogspot.com/2020/02/olympus-mzuiko-12-45mm-f4-pro-vs-12.htmlps://robinwong.blogspot.com/2020/02/olympus-mzuiko-12-45mm-f4-pro-vs-12.html
Both 12-45mm F4 and 12-40mm F2.8 performed really well, and the differences in terms of optical performance is negligible, both lenses are incredible sharp and can resolve amazing amount of fine details and excellent contrast, rendering sharp and realistic looking images. The 12-45mm F4 has slight advantage when it comes to wide angle shooting at the widest 12mm (center sharpness) and close up shooting performance. However the 12-40mm F2.8 fares a little better at wide angle corner sharpness and also at the farthest telephoto end shooting. The 12-45mm F4 PRO being the newer lens has the advantage when it comes to flare and ghosting resistancethanks to the Zero coating by Olympus, and the bokeh balls do not exhibit "onion shape", which the older 12-40mm F2.8 is quite prone to if that is a big issue for you.
If you already own the Olympus M.Zuiko12-40mm F2.8 PRO, or the 12-100mm F4 IS PRO, there really is no reason to get the newer 12-45mm F4 PRO lens, you can do everything you can do on the 12-45mm PRO with the previous mentioned two lenses.
However, if you are thinking to upgrade from your kit lens, either 14-42mm EZ pancake lens, or the older 12-50mm F3.5-6.3 EZ, this newer 12-45mm F4 PRO is a huge step up and is a PRO grade lens. You will see significant improvement in terms of the image quality you get with your cameras using the 12-45mm PRO.