Photography thread
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Nikkormat FTn here with Nikon bellows PB-2, 55mm f3.5 Micro-Nikkor P, and early Nikon slide copying unit.
I finally got the lens lock-pin repair completed (by me) on the bellows.

Same bellows with F2, BR-2 Nikkor reversing ring, and reversed 50mm f2 Nikkor H. Good combination for some of the medium and large size insects that spring brings.
Regards,
Doc SharptailComment
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My two boys gave me grief for trying to take scorpion pics.
I'm not allowed to play with stinging insects anymore.
Katydid3.jpgComment
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I've got three Nikons, two Leicas, and several lens that digital photography put out of business. Use to do my own developing and printing, but moved after retirement and never got set up again. I just use an inexpensive Canon digital camera for what photography I do now, mostly sending photos back and forth.Comment
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I still have one Canon digital that is mostly okay. It rarely gets used anymore.I've got three Nikons, two Leicas, and several lens that digital photography put out of business. Use to do my own developing and printing, but moved after retirement and never got set up again. I just use an inexpensive Canon digital camera for what photography I do now, mostly sending photos back and forth.
Almost all of my manual focus film era lenses get used on the D-810 DSLR. (I still don't have any A/F lenses)
Fortunately, Nikon stayed with the F mount bayonet system for a good long time.
For the amount of time I spend at it, it's definitely worth it.
I am doing things with the big 24 x 36mm full frame sensor that I couldn't even possibly dream of back in the film days.
The bellows photo's above were taken with an old Nikkor S 35mm f2.8 lens~ for it's close focus ability at ISO 6400
Your old film era lenses are still usable, and if barring that, still salable goods.
Regards,
Doc SharptailComment
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From the dark, dank, dusty days of Vinyl.
"Zerostat" pizeo record cleaning pistol & One of those funky "Saticmaster" brushes with the "Polonium" radio active element in a cage. Done in 10 seconds!


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Some Polonium isotopes have a short half life - was this advertised to last a while? SWLast edited by 5thDragoons; 05-07-2023, 04:00.Comment
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Yes the replaceable cartridges had printed expiration dates.
" Every alpha ionizer source provided in the Staticmaster incorporate only a few microcuries of Polonium 210 material, still to obtain a license to manufacture and distribute these devices the design had to pass a safety analysis and battery of tests mandated by state and federal agencies, and defined by ANSI/ISO standards. Each element is leak tested prior to shipment. The quality assurance program is in place during the manufacturing processes, and these are reviewed and audited to assure compliance. It is completely safe to handle this alpha source since the particles can not pass through a sheet of paper, or through human skin. These have now been in production for over 60 years, and during that time the only instances of contamination were when the integrity of an ionizer was compromised by tampering or by physical abuse such as cutting into it.
The half-life of the encapsulated radioactive Polonium 210 material is 138.4 days, so about (14) months since manufacture have elapsed the radioactive activity of the Polonium has reduced to about 12.5% of its original level. One year after production it retains 17% of it?s original level of activity, and so the manufacturer suggests this is when the cartridge should be replaced in order to maintain optimal static control of your process.
Left: the metal label plate of a Staticmaster? one inch brush. Note the stamped Polonium 210 expiration date (35,746 bytes).
Click on image to see enlarged view (88,866 bytes)

In addition to the practical considerations there is a Federal regulatory body that governs the manufacture and distribution of these devices that requires all such alpha products be inspected at intervals of thirteen months after manufacture. By returning the Polonium Cartridge the required testing can be done on our customer?s behalf.
It is a simple matter for the user to remove the encapsulated Polonium module from the brush assembly and then return it for safe disposal at the factory. Replacement modules can be ordered and easily installed by the user. Regardless of the cartridge half life status, given reasonable care the Staticmaster remains useful as a brush for many many decades to come.Comment
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well,, a post I thought I posted disappeared,
I may have one of the zero stats around here somewhere, used them, but not sure they did much,
re cleaning, I have a brush the size of a small shoe brush that is more of a padded felt or velvet, that worked really well to get dust off an album,
came with a spray bottle of basically alcoholComment
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Polonium 210 used to be the KGB's poison of choice. Took long enough for serious symptoms to develop, the half life was nearly timed out and an ID of the poison was difficult at best. A very unpleasant way to be assassinated. SWComment
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Its encapsulated in beads which are also sealed in a resin. Then its behind the cage shown.
I wouldn't chew on it too much though.
Easy test for the Zerostat.
take some paper chads from the shredder then wipe something plastic vigorously for a bit. Now sprinkle the chads onto it & hold it vertically, the paper chads should stick be static attraction. "Fire" the Zerostat at it & they should immediately drop free.

It also works when dusting a glass lens!Last edited by Phloating Phlasher; 05-08-2023, 09:43.Comment
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Zorkis & the lenses were a GREAT deal at the time.
The lenses would fit screw thread Leica bodies & you could use Leica or Canon 39mm threaded lenses.Comment

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