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Forum: Pentax SLR Lens Discussion 10-25-2016, 10:07 AM  
55mm/f1.2 Porst versus Revuenon writeup
Posted By Pioneer
Replies: 16
Views: 3,495
Thank you kalpa. Very interesting post and link. Now I know much more about my Tomioka lens.
Forum: Pentax SLR Lens Discussion 10-24-2016, 02:00 PM  
55mm/f1.2 Porst versus Revuenon writeup
Posted By Pioneer
Replies: 16
Views: 3,495
I have the Tomioka 55/1.2 in M42 and it is an excellent lens. Quite good wide open it becomes exceptional by f4. It does have noticeable vignetting and CA, both of which are gone by f4, at least in practical field photography. Distortions seem pretty well controlled but I haven't photographed any brick walls with it so your mileage could vary. It is one solid lens and everything on it is tight and well damped. I have no reason to believe that it will change during my time with it. This is a lens you pass along to your kids, and then to their kids, and so on. A very, very occasional lube job will likely be all it needs for several lifetimes of use.

Personally I think it is better on film than on digital so I tend to use it more frequently with my Spottie where it performs very, very good. Since it gets used as a walk around lens on the Spottie I use it all the way to f8 and it does really well. A little heavy but it balances nicely on the Spotmatic. I'll take some shots with it at my Grandson's next basketball game and post some relatively low light, indoor action photos from it.
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