Aetna Rokunar 300mm f5.6

[Scheimpflug]

Just picked this one up today, an Aetna Rokunar 300mm f5.6. It came to me with an inoperable aperture, a loose barrel, and no set screw in the tripod collar. But for once, the right mount!!

I've already fixed the aperture (a stuck stop-down mechanism), as well as the barrel (three loose set screws behind the tripod collar, accessible through the tripod socket).


I don't know anything about this lens, so I'll describe it. It has a built-in sliding lens hood that is quite large:


.. and it extends a considerable length when you focus it.




The close focus is quite close, somewhere in the range of 1 to 1.5m. It gives dim blueish reflections off of the front element, so I believe it is multi-coated, and it was made in Japan. The Nikon mount is permanent, and is not a T-mount.



With the lens and hood collapsed, it is the same length as my 30cm (300mm) Minolta TELE ROKKOR-QD, f/5.6, but the Minolta is narrower and noticeably lighter. The Aetna appears to have better coatings than the Minolta, and focuses much closer (1.5m vs 4.5m). The Minolta is a preset lens, while this Aetna is *not* a preset.


Other than that, I don't know anything, and the search is turning up results for much older Aetna lenses. Does anyone know anything about this particular model, or Aetna in general during this time period?

Thanks.
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Sigma DP1, Nikon D40 (hers ), Polaroid x530, Pentax P30t, Pentax P50, (P30t/P50 K-A to Nikon F body mount conversion)
Nikon: 18-55/3.5-5.6 "G ED II DX" (F) Soligor: 28/2.8 (FL->F converted), 135/3.5 (F), 3x TC (F, modified) Kalimar: 28-85/3.5 (F)
Vivitar: 70-210/2.8-4.0 Version 3 (F), Tele 500/6.3 Preset (F), 19/3.8 (F) Minolta: 300/5.6 (SR/MC/MD pending F conversion)
Tamron: 28/2.8 (Adaptall) Panagor: 28/2.5 (FD) Aetna: 300/5.6 (F) Osawa: MC 28/2.8 (F)
Vintage Lenses: Dallmeyer: 1940s A.M. 14in 356mm f4 (ULF->M42) 1930s Adon Telephoto Taylor, Taylor & Hobson: 1880s Rapid Rectilinear 8 1/2 x 6 1/2 11.31in f/8 (LF->?)
Parts Lenses: Nikon 35-135/3.5-4.5 (F), Sigma 70-210/4.5 (F), Nikon 50/1.8 Series E (F)

[luisalegria]

Aetna was a brand name used by a US importer that at one time also used other well-known trademarks either by themselves or in conjunction with Aetna - "Rokunar", "Coligon", etc.

Just about everything was sold under this brand/brands, so there is no way at all to tell what you have without a picture.
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I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work.

[ManualFocus-G]

That's a carbon copy of the Tamron Adaptamatic 300/5.6 and some of the earlier Adaptall 300/5.6 designs. So it's a Tamron basically!
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Graham - Moderator

Shooting things: Canon EOS 6D and 5D, Samsung NX11 with Carl Zeiss T*

See my Flickr photos at http://www.flickr.com/photos/manualfocus-g

[Scheimpflug]

[Scheimpflug]

[ManualFocus-G]

Several people here have seen good results with theirs, although my example was pretty crappy to be honest!
_________________
Graham - Moderator

Shooting things: Canon EOS 6D and 5D, Samsung NX11 with Carl Zeiss T*

See my Flickr photos at http://www.flickr.com/photos/manualfocus-g

[luisalegria]

No, I didn't see your pictures, I don't know why. Perhaps my work internet settings are interfering. I do see Scheimpflugs pictures though.

I also have this Tamron. I find it excellent, its my favorite 300mm at the moment.
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I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work.

[mo]

Nice buy Scheimp! I have a 135 adaptamatic. You know pictures from this lens are expected!
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Moira, Moderator
Pentax K200D,Pentax MX
Ricoh Singlex TLS,KR-5,KR-5Super,XR-10
Lenses
Auto Rikenon's 55/1.4, 1.8, 2.8... 50/1.7 Super Takumar 1.8/55...Macro Takumar F4/50... CZJ Biotar ALU M42 2/58 CZJ Tessar ALU M42 2/50CZJ DDR Flektogon Zebra M42 2.8/35
Auto Mamiya/Sekor 1.8/55 ...Auto Mamiya/Sekor 2/50 Auto Mamiya/Sekor 200/3.5 Tamron SP500/8

[Scheimpflug]

[Scheimpflug]

[Scheimpflug]

[revers]

Nice surprise.

I am afraid it would be just too heavy on my G1, in fact the Vivitar Series 1 70-210/3.5 is.
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Ron

Olympus OM-D E-M5, 14-42 & 45/1.8.
Panasonic G1, GF1, 14-45, 45-200 & various legacy lenses.

Canon S5, Sony 1.7 Tele-converter & Raynox DCR 150 Macro converter.

[Scheimpflug]

[eccs19]

I've also got the Tamron version of this lens. Admittedly I was never really happy with it. I've not yet tried it on my K7. Maybe I'll have to give it another go. I did find it has really bad PF wide open, and I just didn't find it that sharp. Maybe I'll have better results on K7.
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Camera(s) - Pentax *istD & K7
Takumar Lenses - 28mm f3.5, 55mm f1.8, 100mm f4.0 1:2 macro, 105mm f2.8, 200mm f3.5, 85-210 Zoom f4.5
Tamron - 300mm f5.6, 500mm mirror f8
Pentax 50mm f2.0

[revers]

"You have the v2 Tokina version of that lens, right? "

That is correct.

After seeing your shots it this thread I went out this morning & tried something similar. See my post Sears 80-200/4.0.
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Ron

Olympus OM-D E-M5, 14-42 & 45/1.8.
Panasonic G1, GF1, 14-45, 45-200 & various legacy lenses.

Canon S5, Sony 1.7 Tele-converter & Raynox DCR 150 Macro converter.