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08-04-2018, 06:43 PM   #1
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helios 44-2 M42

Hi, All:
I just received my 1972 Russian USSR 8 blades KMZ Helios-44-2 58mm f2 lens, I paired it with Pentax KP. I was so looking forward to try the King of crazy Soapy bobble bokeh lens, to my disappointment, my copy produced only Hexagon shaped bokeh ( please see photos), not the soapy bubble bokeh. could any one please sheds some lights on Why i got the Hexagon and How to achieve the soapy bubble bokeh. wander if there are different kinds of way to use the lens?
any comment will be greatly appreciated

Thanks
CooperPete

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08-04-2018, 06:53 PM   #2
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QuoteOriginally posted by CooperPete Quote
Hi, All:
I just received my 1972 Russian USSR 8 blades KMZ Helios-44-2 58mm f2 lens, I paired it with Pentax KP. I was so looking forward to try the King of crazy Soapy bobble bokeh lens, to my disappointment, my copy produced only Hexagon shaped bokeh ( please see photos), not the soapy bubble bokeh. could any one please sheds some lights on Why i got the Hexagon and How to achieve the soapy bubble bokeh. wander if there are different kinds of way to use the lens?
any comment will be greatly appreciated

Thanks
CooperPete
I see 8-sided bokeh - not hexagonal - which is what you should get with an eight-blade iris
08-04-2018, 07:05 PM   #3
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Shoot wide open f2. Bokeh takes on the shape of your aperture, stopped down you will get the shape of your blades, wide open should be soft and bubbly
08-04-2018, 09:01 PM   #4
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As said above - that is stopped down, if you are leaving it at f2 then check your adapter isn't pushing the pin in a bit.

08-05-2018, 02:09 AM   #5
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As others have said, you need to shoot wide open. Choose a background that has plenty of highlight details and position yourself so that your subject is roughly half way between you and the background. Also note that when using the lens on an APS-C sensor camera, a lot of the swirl is cropped, so whilst you can still achieve some amount of swirl, it won't look as extreme as it does when shooting full frame.

QuoteOriginally posted by sqrrl Quote
if you are leaving it at f2 then check your adapter isn't pushing the pin in a bit.
The 44-2 is a preset lens, so there's no aperture pin to depress.

Make sure that the preset ring is set to f/2, and the diaphragm control ring is set so that you see a perfect circle when looking through the lens.
08-05-2018, 02:53 AM   #6
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Right you are, I was thinking of the 44m
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