This is the newest addition to my Micro Four Thirds kit; as you can see in the pic above, the Porst is a super fast lens for low light. I just wanted to share a a few thoughts on this setup as I am really enjoying it. The Porst 55mm F1.2 lens is a K-mount lens requiring a special adapter to connect it to an M/43 camera but once attached if feels natural. I’ve tested the sharpness of the lens wide-open and it’s adequately sharp at F/1.2. In fact I am surprised at how sharp it is!! However, I am new to shooting a lens this fast and it is a treat but it’s not without its challenges. The other afternoon I took the lens out for a quick photo-shoot around Cedar City to get the hang of it and discovered that it is quite difficult to nail the focus when shooting wide-open at F1.2; it’s literally paper thin! At first, I though the lens was just not sharp but when testing it on a tripod, it was much easier to nail focus with some stability.
What I like about the lens is the insane bokeh that I’ve been able to cherry pick out of thousands of images on Flickr from a variety of F1.2 lenses and I’m pretty convinced that the Porst 55mm F1.2, the Tomioka 55mm F1.2, and the Cosina 55mm F1.2 are all similar designs and render very similar bokeh and sharpness and behave very similar. The three lenses I just mentioned are all worthy of investment as well as the Yashinon Tomioka 55mm F1.2 lens.
This lens constitutes a Poor Man’s Noctilux. While I don’t think it can really beat the Leica Noctilux in sharpness wide-open, I actually prefer the bokeh from from the lenses I’ve mentioned above, especially the Porst. If I were to buy a second lens for the same speed, I would invest in a Cosina 55mm F1.2 lens. The Tomiokas are excellent choices but I their going prices for used condition on the market are way jacked-up, in fact – I’m not convinced that the Tomioka’s are worth a going price of $1,200 on eBay which is what the “buy-it-now” auction are asking for. I was able to get my Porst for about $379 which was much more reasonable and the lens was shipped clear from Cyprus in mint minus condition.
The Porst 55mm F1.2 lens is a lot of fun though and I will share more thoughts as time moves on!