Originally posted by richard0170 I have and love the 58mm FL f1.2! I am still using it for film on my Canon FT QL, EF and F1. Intrigued to see you get your 55mm converted to Pentax. Have you retained auto diaphram and does it still focus to infinity and no further? If, following conversion, you retain full functionality I might be tempted to go for a K1 sometime.
---------- Post added 06-21-18 at 09:49 AM ----------
I am not a 35mm fan on APSc, much preferring a 28mm or 50mm. But, the HD DA 35 is a special lens which encourages use despite it being the "wrong" focal length. So, if you like 35mm on APSc, get one and you will not be disappointed.
Thanks for your comments. As remounted, my Canon-FL 55mm f 1.2 operates like this:
1. FOCUS. Manual focus, of course, but quite easy to achieve focus on the K-1. The K-1 focussing aids seem to work well with this lens,.i.e., focussing light inside the viewfinder combined with the audible beep AND catch-in-focus, which works well though I am not quite enthusiastic about this feature myself.
2. APERTURE. The remounted lens works like a pre-set lens, and there is no automatic aperture stop down. Once you have set the aperture, you can focus with the lens wide open, and then turn a separate ring to stop the lens down to the selected aperture.
3. SHOOTING MODES. The lens can be used either in M (manual) mode or Av (aperture priority) mode. I frequently do use Av, which works quite well on the K-1.
COMMENT: The mount conversion has given me a lens that works well with my Pentax full-frame and crop sensor cameras. Image quality is as good as I recall achieving on my old Canon F-1 cameras. The keeper rate using Av mode with aperture closed down during focussing works very well for me. This morning, out of around 100 shots, I only lost 3-4 shots because of faulty exposure or missed focus, although I was shooting with large apertures (f 1.2, 2.0, 2.8, and 4.0), simplifying the focussing process by avoiding the necessity of stopping down after achieving focus, a practice that I have always avoided as being somewhat awkward.
My lens has also been cosmetically freshened by a silvering job, so the lens stands out well and is quite attractive.
I hope these comments will be helpful.