Yes, there are a number of Olympus Zuiko lenses that are radioactive. The Pentax Takumar models that are radioactive, weren't using rare-earths, which are not radioactive.The Zuiko is radioactive, like the rare-earth Takumars? Whoa! Had no clue...
What are the copies called?
Sven's (#16) Trees, is fine...shows off some features of lens...
I think the vertical line is the edge of a light shower out to sea, so yeah reflection.Top pic, water, upper third, (right side under "Gallery" in the original post (OP)...a vertical line in image seems to extend to water...reflection? I have one and hard to chose between it and the larger Nikkor/with adapter, it is that good...to me!
Interesting this thread is the only Zuiko 38 1.8...right handy lens that does. Have to compare to 1.8 Nikkor and other Nikkors...have both so its decisions-decisions...
Don't worry, not all of the Olympus Zuiko lenses are radioactive, most aren't. The few I'm aware of are: the mentioned Pen-F 38-f/1.8, the Pen-F Zuiko 40-f/1.4, the OM Zuiko 50-f/1.4 'silver-nose'.Really! Figured Thorium was rare earth radioactive dirt...de nada!
I have but one Zuiko and will keep it far from me gones...but may keep (lens) if goes over Nikkor when I compare, with me eye...
So, a Zuiko lens is really a Z, no matter what...? Just being anal.
The copy-cat part got me thinking...I do know me one Z is legit. did not know about exceptions...I kinds shot more than checked.
I do appreciate the "heads-up!"
Makes me love my Nikkors all the more "kewl"...and will put my lead-apron in trash....ho-ho!
I've done this. Mostly when researching a topic and then letting my interest die - sometimes for over a year or more. I end up back in the same thread years later and find some useful information only to realize that the information is from my own post!You know what's funny? I went to the start of thread trying to figure out who started it...and it was ME . I gave up on this lens a while back because I stupidly sold my copy and the three copies I've picked up to replace it have all been trashed. The lack of parts makes picking one up a bit more problematic.
Don't worry, this lens can be disassembled and serviced rather easily. I recall being able to quickly degrease the aperture blades, relube the helicoid threads, clean each element of any haze and fungus and even relube the ball detent of the aperture ring. A few simple lens tools, q-tips, alcohol, lighter fluid, and grease, plus a few hours and the lens works smooth as butter. There are many you-tube videos tutoring how to take apart old lenses.I think the vertical line is the edge of a light shower out to sea, so yeah reflection.
Sadly, I've had to stop using mine because the aperture ring has gone wrong. Not quite stuck but getting there.
Yeah, about that...I’m pretty handy with tools and have successfully taken apart and clean my old film cameras and a few lenses and the Pen 38 was the no cake walk when I tried it. You’re clearly a better man than I am.Don't worry, this lens can be disassembled and serviced rather easily. I recall being able to quickly degrease the aperture blades, relube the helicoid threads, clean each element of any haze and fungus and even relube the ball detent of the aperture ring. A few simple lens tools, q-tips, alcohol, lighter fluid, and grease, plus a few hours and the lens works smooth as butter. There are many you-tube videos tutoring how to take apart old lenses.
What are you comparing it to? You do realize this is a 1/2 frame lens. The Pen-F camera only exposed 1/2 of a normal 35mm exposure to double the number of shots per roll.I have used the 38mm Pen F 1.8 in comparison shoots with other lenses using same settings and distance, and the lens seems to underexpose. I can compensate for it, but I wonder. ???
The essentials are a lens spanner and a set of precision screwdrivers. The former is available for $10-15 USD on ebay. There are several styles, but it should have pointed and flat contacts.@WNG what are these lens tools of which you speak?Today/last night was the first time I tried my somewhat crocked 38/1.8 on the A7s and I really should give it some tlc. Strangely, the adapter doesn't twist in properly, unlike any of my other adapters that have migrated from aps to ff: