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new_berlin
Joined: 27 Mar 2011 Posts: 37
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Posted: Fri May 24, 2013 6:16 pm Post subject: Can someone recommend a petzval like lens for APS-C |
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new_berlin wrote:
I was quite impressed with a c-mount Cooke Kinic 25mm f1.5 adapted to micro-four-thirds.
Is there a lens that can produce similar swirly bokeh, is sharp, and adaptable for complete coverage of APS-C sensors -- the camera I intend using is a Pentax K-01. The focal length is not important to me (as long as it is less than say 100mm).
My understanding is that these unique characteristics are common to Petzval lenses but I have no idea what to look for. So any thoughts would be great.
Mod: If this post belongs on the cine-lens forum, please move. Thanks. |
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Attila
Joined: 24 Feb 2007 Posts: 57865 Location: Hungary
Expire: 2025-11-18
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Posted: Fri May 24, 2013 7:42 pm Post subject: |
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Attila wrote:
Biotar 75mm is well known from swirly bokeh and cover full frame. _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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new_berlin
Joined: 27 Mar 2011 Posts: 37
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Posted: Fri May 24, 2013 8:26 pm Post subject: |
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new_berlin wrote:
Attila wrote: |
Biotar 75mm is well known from swirly bokeh and cover full frame. |
Thanks, great to know. The optical output from the biotar 75mm f1.5 looks exactly like what I want but $2k+ prices are not. At least now I know that I should bother to pick it up if I find one on the roadside
So any more lenses you can suggest? I don't want to drop more than $300ish. |
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luisalegria
Joined: 07 Mar 2008 Posts: 6602 Location: San Francisco, USA
Expire: 2018-01-18
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Posted: Fri May 24, 2013 10:21 pm Post subject: |
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luisalegria wrote:
Any triplet should produce swirly bokeh.
This is a Wollensak 85mm f/3.5 in a Ciroflex TLR -
Not as intense as a 75mm Biotar, but its there.
The 58mm Helios should also do it. _________________ 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. |
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parabellumfoto
Joined: 06 Apr 2013 Posts: 413 Location: Sydney, Australia
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Posted: Sat May 25, 2013 8:38 am Post subject: |
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parabellumfoto wrote:
luisalegria wrote: |
Any triplet should produce swirly bokeh.
This is a Wollensak 85mm f/3.5 in a Ciroflex TLR -
Not as intense as a 75mm Biotar, but its there.
The 58mm Helios should also do it. |
The ladies you guys shoot always come out nice.
This is another gem of a portrait in my opinion. _________________ Minolta MC Rokkor f1.4 50mm
Minolta MD Zoom Macro 35-105mm f3.5-4.5
Nikon Nikkor 50mm F2
Nippon Kogaku Japan Nikkor-S Auto 5cm F2
Nippon Kogaku Japan Nikkor-Q Auto 135mm F2.8
Nikon AF-S Nikkor 35mm F1.8G
http://www.parabellumfoto.com/ |
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new_berlin
Joined: 27 Mar 2011 Posts: 37
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Posted: Sat May 25, 2013 6:42 pm Post subject: |
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new_berlin wrote:
luisalegria wrote: |
Any triplet should produce swirly bokeh.
This is a Wollensak 85mm f/3.5 in a Ciroflex TLR -
Not as intense as a 75mm Biotar, but its there.
The 58mm Helios should also do it. |
Thanks. Will keep an eye out for them.
I checked on ebay and there are a bunch of different tlr ciroflex cameras (dejur, rapax etc) with wollensak anastigmat 85mm f3.5 lenses. Is this the right lens? Are these adaptable with na off the shelf adapter for Pentax?
Thanks again. |
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psy501
Joined: 15 Apr 2012 Posts: 33 Location: Vienna
Expire: 2015-04-15
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Posted: Sun May 26, 2013 8:53 am Post subject: |
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psy501 wrote:
..i have good experiences with a cheap fujian 35 f1.7 tv lens i bought..
..this one for example: article number 150790790443 on da bay..
..its the same one slr magic sold *a bit* more expensive as their toy lens..
..and dont get me wrong..in fact it is no more than a toy lens and it cannot compete with any "real" lens and also i doubt that from the optical formula its a petzval lens, BUT the pictures i get do often swirl quite fine, in most situations there is something you could call bokeh and its also quite sharp (sharp enough for me) in the center..it fully covers aps-c with some rather mild vignetting until up to f8..but it wont produce black corners..just some vignetting same as the petzvals do......and depending on the kind of shot you take it often has some really fine athmosphere (and works quite good in black and white)..
..on the other hand you have to be careful as sometimes its able to produce a "ring of focus", but as they sell for usually about 25 euros with the c-mount adapter included (mine even had some close focus rings included) i think its very worth the try..
..but of course if theres some more suggestion of lenses for aps-c that you really could call "lenses" the info would be highly appreciated by me also..
..erik..
..edit: i overlooked that you want to use it on a pentax, so the listing i sent is wrong..its with an adapter for the nex..but i assume there are c-mount to pentax adapters.. |
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Webwalker
Joined: 09 Jan 2012 Posts: 96 Location: Bishkek, Kyrgyzstan
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Posted: Mon May 27, 2013 10:53 am Post subject: |
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Webwalker wrote:
You can order a Petzval lens for your mount from Russia. I know that one master makes these lenses. Some people buy from him and happy. I did not yet.
Here is link to his thread at club.foto.ru, biggest well known Internet photo forum in Russia (machine translated). _________________ Sony SLT A58
MF: Mir-1 silver GP Brussels, Zenitar-M 1.7/50, Helios 44 silver, Indi 50-2, Jupiter 38 4/75, MC CZJ Biometar 2.8/80, Jupiter 11 crome, MC Tamron SP 28-80mm f/3.5-4.2, Vivitar 75-205 mm f/3.8
AF: Minolta AF 50mm 1.7, mini beercan, beercan, secret handshake, Sigma Tele Converter X1.4 |
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luisalegria
Joined: 07 Mar 2008 Posts: 6602 Location: San Francisco, USA
Expire: 2018-01-18
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Posted: Mon May 27, 2013 6:16 pm Post subject: |
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luisalegria wrote:
Its usually hard to adapt a barrel lens or a lens in shutter <90mm, with infinity, on a DSLR as the usual focusing tubes and bellows add a lot of spacing. Best for DSLR is 105mm.
If you have a Nex, there should be little problem. Just need to find a zero-depth adapter for your focusing tube or bellows. Maybe an M39. 75mm-90mm should be mountable.
There are plenty of 105mm triplets in shutter from old folders. Schneider Radionar, Meyer Trioplan, Steinheil Cassar, etc. Kodak Anastigmats on 620 roll film cameras were almost all triplets. _________________ 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. |
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