Wanted: Bokeh Monster
Posted 16/05/2010 - 22:35
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Could you enlighten us as to what exactly this is?
Thanks, Kris.
Thanks, Kris.
Kris Lockyear
It is an illusion that photos are made with the camera they are made with the eye, heart and head. Henri Cartier-Bresson
Lots of film bodies, a couple of digital ones, too many lenses (mainly older glass) and a Horseman LE 5x4.
It is an illusion that photos are made with the camera they are made with the eye, heart and head. Henri Cartier-Bresson
Lots of film bodies, a couple of digital ones, too many lenses (mainly older glass) and a Horseman LE 5x4.
Posted 16/05/2010 - 22:55
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I believe the Gentleman is referring to an old Pentacon 135mm f2.8 with a 16 blade iris, that has gained something of a reputation on the interweb thingy, for producing remarkable out of focus rendering.
No man is worth his salt, who has not been banned from at least one Forum, and two Flickr groups.
Mowog.
Mowog.
Posted 16/05/2010 - 22:57
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The Pentacon 135mm f2.8 with the 15-bladed aperture. AFAIK there are at least four different Pentacon versions of this, and it was also released under other brands (definitely a Meyer version for example). Just to make it even simpler, Pentacon also made a 135mm f2.8 which did not have 15 aperture blades
EDIT: mowog beat me to it!
EDIT: mowog beat me to it!
Posted 16/05/2010 - 23:17
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I had one of these about a year ago. Got it on ebay for about £30, put it on ebay again 6 months later for 99p, and 10 days later it sold to a Taiwanese buyer for £130
It was okay, a bit soft wide open, but pretty good stopped down a bit. I got rid of it because it was too heavy, and the mount is so small that all the contacts on your camera are visible (which also means catch-in-focus doesn't work, and that was important to me at the time).
Also the very narrow mount always made me worry it was going to wrench out the mount of my camera, it looked so precarious. I should also say that I never noticed anything particularly amazing about the bokeh (I had the 15 blade version).
It was okay, a bit soft wide open, but pretty good stopped down a bit. I got rid of it because it was too heavy, and the mount is so small that all the contacts on your camera are visible (which also means catch-in-focus doesn't work, and that was important to me at the time).
Also the very narrow mount always made me worry it was going to wrench out the mount of my camera, it looked so precarious. I should also say that I never noticed anything particularly amazing about the bokeh (I had the 15 blade version).
Tim
AF - Pentax K5, Sigma 10-20/4-5.6, Tamron 17-50/2.8, Sigma 30/1.4, Sigma 70-200/2.8, Tamron 70-300/4-5.6
MF - Vivitar CF 28/2.8, Tamron AD2 90/2.5, MTO 1000/11
Stuff - Metz 58 AF1, Cactus v4, Nikon SB24, Raynox 150, Sigma 1.4x TC, Sigma 2x TC, Kenko 2x macro TC, Redsnapper 283 tripod, iMac 27, Macbook Pro 17, iPad, iPhone 3G
Flickr Fluidr PPG Street Portfolio site
Feel free to edit any of my posted photos! If I post a photo for critique, I want brutal honesty. If you don't like it, please say so and tell me why!
AF - Pentax K5, Sigma 10-20/4-5.6, Tamron 17-50/2.8, Sigma 30/1.4, Sigma 70-200/2.8, Tamron 70-300/4-5.6
MF - Vivitar CF 28/2.8, Tamron AD2 90/2.5, MTO 1000/11
Stuff - Metz 58 AF1, Cactus v4, Nikon SB24, Raynox 150, Sigma 1.4x TC, Sigma 2x TC, Kenko 2x macro TC, Redsnapper 283 tripod, iMac 27, Macbook Pro 17, iPad, iPhone 3G
Flickr Fluidr PPG Street Portfolio site
Feel free to edit any of my posted photos! If I post a photo for critique, I want brutal honesty. If you don't like it, please say so and tell me why!
Posted 16/05/2010 - 23:21
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thoughton wrote:
the mount is so small that all the contacts on your camera are visible (which also means catch-in-focus doesn't work, and that was important to me at the time).
Hmm... maybe I'll look at the other lenses on the lots-of-aperture-blades list I came across.
the mount is so small that all the contacts on your camera are visible (which also means catch-in-focus doesn't work, and that was important to me at the time).
Posted 16/05/2010 - 23:42
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Anything like this?
It has 15 blades and is 42mm screw fit.
Archie
It has 15 blades and is 42mm screw fit.
Archie
Archie
Posted 17/05/2010 - 00:14
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That's one of them yeah - and the mount does look very small indeed. I probably wouldn't be comfortable about having the electrical contacts exposed (I live in Scotland, the only place in Western Europe to suffer monsoon )
Posted 17/05/2010 - 00:22
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Good Bokeh doesn't just come from the number or roundish of the aperture blades the optical elements are far more important in this matter.
The "dots" the lens paints need to feather at the edge to get a very soft blur.
Here you can see it, it are Sony lenses though, sadly Pentax don't have the patent to make a Smooth Trans Focus lens
Here is a review about the Sony 135 F2.8 [T4.5] STF that shows what I mean with soft dots link
Here are two examples.
Both at 135mm f/4.5
Sony 80-200
135 STF
Am I the only one that would love to have this lens under a Pentax name?
The "dots" the lens paints need to feather at the edge to get a very soft blur.
Here you can see it, it are Sony lenses though, sadly Pentax don't have the patent to make a Smooth Trans Focus lens
Here is a review about the Sony 135 F2.8 [T4.5] STF that shows what I mean with soft dots link
Here are two examples.
Both at 135mm f/4.5
Sony 80-200
135 STF
Am I the only one that would love to have this lens under a Pentax name?
Stefan
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
Posted 17/05/2010 - 00:25
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MrCynical wrote:
That's one of them yeah - and the mount does look very small indeed. I probably wouldn't be comfortable about having the electrical contacts exposed (I live in Scotland, the only place in Western Europe to suffer monsoon )
I lived in Glasgow for five years so I know how wet it can be - you are probably safer with WR lenses!That's one of them yeah - and the mount does look very small indeed. I probably wouldn't be comfortable about having the electrical contacts exposed (I live in Scotland, the only place in Western Europe to suffer monsoon )
Archie
Archie
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