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Biotar 75/1.5 aperture blade interchangable with 58/2?
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lwsy711



Level 1

Joined: 21 Oct 2009
Posts: 216
Location: VA, US
PostPosted: Wed Jan 20, 2010 6:03 am    Post subject: Biotar 75/1.5 aperture blade interchangable with 58/2? Reply with quote
Hello everyone,
Just purchased a detected Biotar 75/1.5 with aperture blade damaged and lost (7 out of 10 remaining). So just wondering if I can find some replacement blade from other lenses, Biotar 58/2 pop in my mind first which might be ok. Does anybody have both lenses and know the size of the aperture blades or know in which lens I can find such blade(definitely don't want to buy another 75/1.5 to save this one:D Actually according to the seller, this one was scarified to donate its blades to another one Surprised )?

Here is the pictures from the seller:



Thanks in advance!
Wei
_________________
Camera: pentax k7, Olympus E-p1
MF lens:
M42: CZJ 135/3.5, 50/1.8, 35/2.4, 20/4, Super Takumar 35/3.5, Yashinon macro 60/2.8, CZ tessar 80/2.8(Exakta to M42), Vivitar 200/3.5
Pk: Cosinon 55/1,2
Exakta: CZJ biotar 75/1.5, Meyer 100/2.8, Meritar 50/2.9
Praktina: CZJ biotar 75/1.5, Primagon 35/4.5
Praktica: CZJ pancolar 80/1.8
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Attila



Level 4

Joined: 24 Feb 2007
Posts: 30509
Location: Budapest,Hungary
PostPosted: Wed Jan 20, 2010 6:09 am    Post subject: Reply with quote
I am pretty sure is not they barrel diameter is different.
_________________


Panasonic G-1
Konica 4/21,2.8/24,2/35,1.8/40,1.7/50,1.8/85,2.8/100,3.2/135,3,5/200,4.5/300,4,5/400
Konica FC-1,FT-1,FP,FM,Pearl,Pear III,Koni-Omega
Please visit my Ebay shop
and my company site
http://webdesign-logo.com
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lwsy711



Level 1

Joined: 21 Oct 2009
Posts: 216
Location: VA, US
PostPosted: Wed Jan 20, 2010 6:17 am    Post subject: Reply with quote
Attila wrote:
I am pretty sure is not they barrel diameter is different.


lol Yes, you are right.....So this might mean it will be very hard to find something perfectly fit. I think even with only 7 of them, there should not be very big effect on the IQ, right?
_________________
Camera: pentax k7, Olympus E-p1
MF lens:
M42: CZJ 135/3.5, 50/1.8, 35/2.4, 20/4, Super Takumar 35/3.5, Yashinon macro 60/2.8, CZ tessar 80/2.8(Exakta to M42), Vivitar 200/3.5
Pk: Cosinon 55/1,2
Exakta: CZJ biotar 75/1.5, Meyer 100/2.8, Meritar 50/2.9
Praktina: CZJ biotar 75/1.5, Primagon 35/4.5
Praktica: CZJ pancolar 80/1.8
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kds315*



Level 4

Joined: 12 Mar 2008
Posts: 3368
Location: Weinheim/Germany
PostPosted: Wed Jan 20, 2010 6:49 am    Post subject: Reply with quote
Doesn't fit, these are very special and extra thin. My mechanic had to take out one of one of my 1.5/75 Biotar when he serviced it. I have it for sale listed here (it is the rare slim type btw.)
_________________
Klaus

http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/uv_photos for UV Images and lens/filter info
http://photographyoftheinvisibleworld.blogspot.com/ my UV diary


Currently most FAV lens(es):

Zeiss UV-Planar f4/60mm
Nikon UV Nikkor f4.5/105mm
Rodenstock UV-Rodagon f5.6/60mm
Voigtländer (Cosina) Apo-Macro-Lanthar f2.5 125mm SL
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lwsy711



Level 1

Joined: 21 Oct 2009
Posts: 216
Location: VA, US
PostPosted: Wed Jan 20, 2010 7:07 am    Post subject: Reply with quote
kds315* wrote:
Doesn't fit, these are very special and extra thin. My mechanic had to take out one of one of my 1.5/75 Biotar when he serviced it. I have it for sale listed here (it is the rare slim type btw.)


Thanks for confirm this. Will see what the effect is without uneven blades......

And yours are 18 blades version, right? I think mine is 10 blades version. Don't know if there was any difference for blades between these two version.

Klaus, sorry had not seen your post before, or I might considering yours. Good luck for somebody take it!
_________________
Camera: pentax k7, Olympus E-p1
MF lens:
M42: CZJ 135/3.5, 50/1.8, 35/2.4, 20/4, Super Takumar 35/3.5, Yashinon macro 60/2.8, CZ tessar 80/2.8(Exakta to M42), Vivitar 200/3.5
Pk: Cosinon 55/1,2
Exakta: CZJ biotar 75/1.5, Meyer 100/2.8, Meritar 50/2.9
Praktina: CZJ biotar 75/1.5, Primagon 35/4.5
Praktica: CZJ pancolar 80/1.8
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Attila



Level 4

Joined: 24 Feb 2007
Posts: 30509
Location: Budapest,Hungary
PostPosted: Wed Jan 20, 2010 8:34 am    Post subject: Reply with quote
How about a series of card boards, with different wholes in center what is fit into your adapter ?
_________________


Panasonic G-1
Konica 4/21,2.8/24,2/35,1.8/40,1.7/50,1.8/85,2.8/100,3.2/135,3,5/200,4.5/300,4,5/400
Konica FC-1,FT-1,FP,FM,Pearl,Pear III,Koni-Omega
Please visit my Ebay shop
and my company site
http://webdesign-logo.com
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Spotmatic



Level 3

Joined: 18 Aug 2008
Posts: 2476
Location: Netherlands
PostPosted: Wed Jan 20, 2010 8:41 am    Post subject: Reply with quote
I think the Biotar is a decent wide-open shooter so why not use it this way for the time being? Then keep on the lookout for a well used, dinged and fungus-infested one where you can obtain the blades from. Just an idea...
_________________
"Old Takumars never die; they just fade away"

Pentax K-7 + Pentax 645 + Bessa RF 10,5cm Heliar, Bessa II Apo-Lanthar and a 'little' bag full of MF lenses. The lens list is * here *.
My fast 80s: Asahi-Kogaku Takumar 83mm f/1.9 - Super-Takumar 85mm f/1.9 - S-M-C Takumar 85mm f/1.8 - FA 77mm f/1.8 Limited - Cyclop 85/1.5 (Helios-40 innards) - Komura 80mm f/1.8 - Komura 85mm f/1.4 - Accura Supertel Tc 1:1.9 f=85mm - Jupiter-9 2/85 - Meyer Görlitz Primoplan 7,5cm 1:1.9 - Carl Zeiss Jena 75mm f/1.5 Biotar - Carl Zeiss Jena 80mm f/1.8 Pancolar - Canon 85mm f/1.8 S.S.C. - Canon 85mm f/1.2 S.S.C. Aspherical - Enna München Ennalyt 85mm f/1.5 - Olympus Zuiko Auto-T MC 85mm f/2
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lwsy711



Level 1

Joined: 21 Oct 2009
Posts: 216
Location: VA, US
PostPosted: Wed Jan 20, 2010 8:50 am    Post subject: Reply with quote
Spotmatic wrote:
I think the Biotar is a decent wide-open shooter so why not use it this way for the time being? Then keep on the lookout for a well used, dinged and fungus-infested one where you can obtain the blades from. Just an idea...


Agree that shoot wide open all the time does not hurt. What I may do for now is, try to straighten the blades I have and install them back. Then it can be wide open and also maybe have acceptable result when stop down Smile

I highly doubt when I can find a well used one Smile

By the way, the mount is Praktina, another issue need to be solved to be used on my camera Smile
_________________
Camera: pentax k7, Olympus E-p1
MF lens:
M42: CZJ 135/3.5, 50/1.8, 35/2.4, 20/4, Super Takumar 35/3.5, Yashinon macro 60/2.8, CZ tessar 80/2.8(Exakta to M42), Vivitar 200/3.5
Pk: Cosinon 55/1,2
Exakta: CZJ biotar 75/1.5, Meyer 100/2.8, Meritar 50/2.9
Praktina: CZJ biotar 75/1.5, Primagon 35/4.5
Praktica: CZJ pancolar 80/1.8
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Spotmatic



Level 3

Joined: 18 Aug 2008
Posts: 2476
Location: Netherlands
PostPosted: Wed Jan 20, 2010 8:55 am    Post subject: Reply with quote
lwsy711 wrote:
Spotmatic wrote:
I think the Biotar is a decent wide-open shooter so why not use it this way for the time being? Then keep on the lookout for a well used, dinged and fungus-infested one where you can obtain the blades from. Just an idea...

I highly doubt when I can find a well used one Smile

By the way, the mount is Praktina, another issue need to be solved to be used on my camera Smile


That would be a problem, yes. I'm facing the same: my 75mm Biotar (minty and working perfectly, knock on wood) has Exakta mount. I don't have a Canon but Pentax so there are not many options to fit it to my cameras.

I'm waiting for the first FF EVIL camera (Electronic Viewfinder Interchangeable Lens) with as short registration distance as possible. Then it does not matter if a lens has a Praktina or Exakta mount Wink
_________________
"Old Takumars never die; they just fade away"

Pentax K-7 + Pentax 645 + Bessa RF 10,5cm Heliar, Bessa II Apo-Lanthar and a 'little' bag full of MF lenses. The lens list is * here *.
My fast 80s: Asahi-Kogaku Takumar 83mm f/1.9 - Super-Takumar 85mm f/1.9 - S-M-C Takumar 85mm f/1.8 - FA 77mm f/1.8 Limited - Cyclop 85/1.5 (Helios-40 innards) - Komura 80mm f/1.8 - Komura 85mm f/1.4 - Accura Supertel Tc 1:1.9 f=85mm - Jupiter-9 2/85 - Meyer Görlitz Primoplan 7,5cm 1:1.9 - Carl Zeiss Jena 75mm f/1.5 Biotar - Carl Zeiss Jena 80mm f/1.8 Pancolar - Canon 85mm f/1.8 S.S.C. - Canon 85mm f/1.2 S.S.C. Aspherical - Enna München Ennalyt 85mm f/1.5 - Olympus Zuiko Auto-T MC 85mm f/2
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kds315*



Level 4

Joined: 12 Mar 2008
Posts: 3368
Location: Weinheim/Germany
PostPosted: Wed Jan 20, 2010 1:14 pm    Post subject: Reply with quote
my Exakta 1.5/75 Biotar works perfectly on my GH1!
G1 are very cheap now Peter after Pansonic discontinued them Wink Wink
_________________
Klaus

http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/uv_photos for UV Images and lens/filter info
http://photographyoftheinvisibleworld.blogspot.com/ my UV diary


Currently most FAV lens(es):

Zeiss UV-Planar f4/60mm
Nikon UV Nikkor f4.5/105mm
Rodenstock UV-Rodagon f5.6/60mm
Voigtländer (Cosina) Apo-Macro-Lanthar f2.5 125mm SL
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kds315*



Level 4

Joined: 12 Mar 2008
Posts: 3368
Location: Weinheim/Germany
PostPosted: Wed Jan 20, 2010 1:21 pm    Post subject: Reply with quote
slim CZJ Biotar 1.5 7,5cm (75mm) red T on Lumix GH1, shot fully open, some at f4, but missing one blade:














looks really, really bad - right? Wink Wink
_________________
Klaus

http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/uv_photos for UV Images and lens/filter info
http://photographyoftheinvisibleworld.blogspot.com/ my UV diary


Currently most FAV lens(es):

Zeiss UV-Planar f4/60mm
Nikon UV Nikkor f4.5/105mm
Rodenstock UV-Rodagon f5.6/60mm
Voigtländer (Cosina) Apo-Macro-Lanthar f2.5 125mm SL
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Spotmatic



Level 3

Joined: 18 Aug 2008
Posts: 2476
Location: Netherlands
PostPosted: Wed Jan 20, 2010 2:39 pm    Post subject: Reply with quote
Klaus, now you are teasing me again! Laughing
_________________
"Old Takumars never die; they just fade away"

Pentax K-7 + Pentax 645 + Bessa RF 10,5cm Heliar, Bessa II Apo-Lanthar and a 'little' bag full of MF lenses. The lens list is * here *.
My fast 80s: Asahi-Kogaku Takumar 83mm f/1.9 - Super-Takumar 85mm f/1.9 - S-M-C Takumar 85mm f/1.8 - FA 77mm f/1.8 Limited - Cyclop 85/1.5 (Helios-40 innards) - Komura 80mm f/1.8 - Komura 85mm f/1.4 - Accura Supertel Tc 1:1.9 f=85mm - Jupiter-9 2/85 - Meyer Görlitz Primoplan 7,5cm 1:1.9 - Carl Zeiss Jena 75mm f/1.5 Biotar - Carl Zeiss Jena 80mm f/1.8 Pancolar - Canon 85mm f/1.8 S.S.C. - Canon 85mm f/1.2 S.S.C. Aspherical - Enna München Ennalyt 85mm f/1.5 - Olympus Zuiko Auto-T MC 85mm f/2
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lwsy711



Level 1

Joined: 21 Oct 2009
Posts: 216
Location: VA, US
PostPosted: Wed Jan 20, 2010 2:51 pm    Post subject: Reply with quote
Very Happy
Yes, pretty "badddddd", lower the price and through it to me! Already temped want to have two of them......resist, resist!!!!
Very Happy Very Happy
_________________
Camera: pentax k7, Olympus E-p1
MF lens:
M42: CZJ 135/3.5, 50/1.8, 35/2.4, 20/4, Super Takumar 35/3.5, Yashinon macro 60/2.8, CZ tessar 80/2.8(Exakta to M42), Vivitar 200/3.5
Pk: Cosinon 55/1,2
Exakta: CZJ biotar 75/1.5, Meyer 100/2.8, Meritar 50/2.9
Praktina: CZJ biotar 75/1.5, Primagon 35/4.5
Praktica: CZJ pancolar 80/1.8
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F16SUNSHINE



Level 4

Joined: 20 Aug 2007
Posts: 4776
Location: Anacortes Washington
PostPosted: Wed Jan 20, 2010 2:53 pm    Post subject: Reply with quote
Hi Peter
why not have CS1 convert your lens to M42?
Robert does a brilliant job and for a reasonable cost.
Search the equiptment gallery for the one he did for member "my photography".
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lwsy711



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Joined: 21 Oct 2009
Posts: 216
Location: VA, US
PostPosted: Wed Jan 20, 2010 2:55 pm    Post subject: Reply with quote
lwsy711 wrote:
Very Happy
Yes, pretty "badddddd", lower the price and through it to me! Already temped want to have two of them......resist, resist!!!!
Very Happy Very Happy


By the way, my e-p1 is on the way to me. Maybe the only practical way now is use the praktina->EOS adapter and then use it on e-p1 for me. Will see if I can find some other ways.

Spotmatic: FF EVIL.....as the speed of the technology, maybe soon Smile
_________________
Camera: pentax k7, Olympus E-p1
MF lens:
M42: CZJ 135/3.5, 50/1.8, 35/2.4, 20/4, Super Takumar 35/3.5, Yashinon macro 60/2.8, CZ tessar 80/2.8(Exakta to M42), Vivitar 200/3.5
Pk: Cosinon 55/1,2
Exakta: CZJ biotar 75/1.5, Meyer 100/2.8, Meritar 50/2.9
Praktina: CZJ biotar 75/1.5, Primagon 35/4.5
Praktica: CZJ pancolar 80/1.8
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