Two shots with the A50/1.2 fitted on the Pentax K-5. I believe that catch-in-focus was used, but still it is hard to nail focus. I guess it is due time to do some more practicing with the A50/1.2

f1.2


Scilla by bjolester, on Flickr

f1.2


Maria Nøkleblom by bjolester, on Flickr

Thank you for supplying images with the K-1 LennyBloke! "A picture is worth a thousand words", or so they say Anyway, it seems that sharpness at f1.2 on the K-1 is quite good, and the background blur, especially in the flower shot, is very nice.

The K50/1.2 has 8 diapraghm blades, the A50/1.2 has 9 diapraghm blades (and the “A” setting).

The Tomioka seems like a great lens, do you own one?

Yes, it would be nice to see more shots taken with the Pentax 50/1.2 lenses on the K-1.

There is possibly not much need for f1.2 with the high ISO capabilities of current DSLRs. Some people see no difference between photographs taken with f1.4 and f1.2. Even with this background the A50/1.2 is a superb lens with breathtaking sharpness and unique rendering IMHO.

Greg Nyquist aka the Northcoast Photographer has written a very nice review of the K50/1.2, here are also some examples of the typical f1.2 “glow”/blur that I believe is unique for these Pentax 50/1.2 lenses:

http://www.northcoastphotographer.net/blog/files/6e9582a6274d2029660e07cbcf382f5...

In 2013 I had a similar query to that of the OP, and I started this thread on PU:

https://www.pentaxuser.com/forum/topic/smc-a50mm-f1-2-vs-fa-43mm-f1-9-limited-41...

I still have the A50/1.2 that I purchased in 2013. Sadly the lens has not been used much, probably because on asps-c the 50mm FOV is a bit in “no mans land” for me. Mostly the A50/1.2 has been used for flower shots, but I presume it will be very useful as a portrait lens on aps-c once I find time to go into that area of photography. I would very much like to start using this lens on a 35mm film camera, because then the FOV is much more useful.

If one wants to experiment with flower shots with dreamy bokeh, f1.2 can be very inspiring. It would probably be difficult to photoshop the f1.2 characteristic look. I have also heard that the A50/1.2 probably is sharper at f2.8 and other smaller apertures than the other Pentax 50mm, but this may not be 100% true. Anyway, the A50/1.2 has a very unique way of rendering colour and micro contrast, it has a lot of character. Even though I use the lens quite seldom, it is a joy to use. I will never sell my copy of this lens.

Very interesting software treatment - it does have the appearence of a print from «oldern times».

I am having more difficulty differentiating between digital sensor formats, than with 35mm film and medium format film. However my experience with this has only background with studying medium format digital images on the Internet, and also a few prints at a local lab. It would be interesting to spend some time with a Pentaz 645Z to experience the larger digital sensor.

I own and use a Pentax 67ii system, and love shoting with the large Pentax. One of the main attractions with this camera is the 6:7 aspect ratio, it makes me compose photos very differently than with the 2:3 aspect ratio found in 35mm film and most DSLR. I wished someone would develop a 6:7 sensor. Imagine a full size (56x70) digital Pentax 67

Interesting VLOGs. I really enjoyed the many beatiful images in the first VLOG. The setting of the second VLOG is very interesting, you are fortunate to live near such a beautiful coastline. I also very much like the music in the second VLOG. Thank you for sharing!

Beautiful portrait.