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thebbm
Joined: 11 Dec 2013
Posts: 295
Location: France montpellier
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 Posted: Sat Aug 08, 2015 12:01 pm Post subject: minolta rokkor 18mm f9.5 aperture unlock ? |
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thebbm wrote:
Hello
Today i buy a minolta rokkor 18mm f9.5 (10e only).
I notice that the blade aperture don't open wide at the minimum 9.5 aperture.
Is this normal ?
Is there a way to open the blade more wide ?
( I ask this because on my minolta 35-70mm f3.5 i unlock the aperture mecanisme so i can have +-2.8 at 35mm ).
Thanks
EDIT :
I forgot the pictures :
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stevemark
Joined: 29 Apr 2011
Posts: 3732
Location: Switzerland
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| Posted: Sun Aug 09, 2015 2:31 pm Post subject: Re: minolta rokkor 18mm f9.5 aperture unlock ? |
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stevemark wrote:
| thebbm wrote: |
Hello
Today i buy a minolta rokkor 18mm f9.5 (10e only). |
Not bad
| thebbm wrote: |
I notice that the blade aperture don't open wide at the minimum 9.5 aperture.
Is this normal ? |
Yes.
| thebbm wrote: |
Is there a way to open the blade more wide ?
( I ask this because on my minolta 35-70mm f3.5 i unlock the aperture mecanisme so i can have +-2.8 at 35mm ).
Thanks
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Probably yes - but i didn't try it, because they obviously did it to ensure a decent quality. The Minolta 9.5/18 Fisheye was very short-lived (introduced 1966, replaced 1969 by the 2.8/16mm Fisheye). At f11 it works quite fine on 24 MP FF, but it's not as good as the later MD/MD 2.8/16mm.
Stephan |
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thebbm
Joined: 11 Dec 2013
Posts: 295
Location: France montpellier
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| Posted: Mon Aug 10, 2015 8:40 am Post subject: |
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thebbm wrote:
Ok
Thank you for the detailled answer.
I will left it as it ( and sold it because i don't use fisheye ) |
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duckrider
Joined: 11 Dec 2013
Posts: 437
Location: Germany
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| Posted: Tue Aug 11, 2015 1:04 am Post subject: |
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duckrider wrote:
I'd appreciate some more info & pictures from this lens, never heard about it yet.
Seems a real bargain for 10€ for me.
Thanks for infos!
_________________
T*homas
(from the origin land of Zeiss, an obligation  )
Zeiss ZF 3.5/18, 2.8/25, 2.0/35, 2/50macro, 1.4/50, 1.4/85, 2/100macro
Nikon Df, F2AS, F2A, F3/T, FM
ALPA 11Si, Angulon 2,8/35 ; Xenar 1,9/50 ; Tele-Tessar 4/200
Leica R3 SAFARI Safari Lenses 2.8/28 ; 2/50 ; 4/180
Rolleiflex SL 350 , Zeiss 2,8/16 ; 4/18 ; 2,8/25 ; 2,8/35 ; 1,4/35 ; 1,8/50 ; 2,8/85 ; 1,4/85 ; 4/135 ; 4/200
Leica M9-P, Leica M4-2, Tri-Elmar "Wate", Distagon 2,8/21, Biogon 2,8/28, Biogon 2/35, Planar 2/50, Tessar 4/85, M-Elmar 50mm, Summicron 90
Sony alpha 7r & adapters for all lenses above |
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tb_a
Joined: 26 Jan 2010
Posts: 3677
Location: Austria
Expire: 2019-08-28
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| Posted: Tue Aug 11, 2015 1:26 am Post subject: |
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tb_a wrote:
| duckrider wrote: |
I'd appreciate some more info & pictures from this lens, never heard about it yet.
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Watch here: http://www.rokkorfiles.com/18mm.htm & http://artaphot.ch/minolta-sr/objektive/138-minolta-18mm-f95-fisheye
_________________
Thomas Bernardy
Manual focus lenses mainly from Minolta, Pentax, Voigtlaender, Leitz, Topcon and from Russia (too many to be listed here). |
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duckrider
Joined: 11 Dec 2013
Posts: 437
Location: Germany
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| Posted: Tue Aug 11, 2015 6:23 am Post subject: |
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duckrider wrote:
Thank You very much Thomas!
I love these simple lens desings from the past. Our predessesors gave us nice lenses without the help of computers etc.
No aspheric, no floating elements, no extreme exotic diffration values, only simple good old school optic.
Of course modern optics with zillions of theses features are better performers, but I'm always impressed
what opticans were able to do in the old times.
_________________
T*homas
(from the origin land of Zeiss, an obligation )
Zeiss ZF 3.5/18, 2.8/25, 2.0/35, 2/50macro, 1.4/50, 1.4/85, 2/100macro
Nikon Df, F2AS, F2A, F3/T, FM
ALPA 11Si, Angulon 2,8/35 ; Xenar 1,9/50 ; Tele-Tessar 4/200
Leica R3 SAFARI Safari Lenses 2.8/28 ; 2/50 ; 4/180
Rolleiflex SL 350 , Zeiss 2,8/16 ; 4/18 ; 2,8/25 ; 2,8/35 ; 1,4/35 ; 1,8/50 ; 2,8/85 ; 1,4/85 ; 4/135 ; 4/200
Leica M9-P, Leica M4-2, Tri-Elmar "Wate", Distagon 2,8/21, Biogon 2,8/28, Biogon 2/35, Planar 2/50, Tessar 4/85, M-Elmar 50mm, Summicron 90
Sony alpha 7r & adapters for all lenses above |
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