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Is this setup feasible? (double lens reverse ring macro)
  
 
zoofolk
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p.1 #1 · p.1 #1 · Is this setup feasible? (double lens reverse ring macro)


So, months ago, I picked up a couple of reverse rings to play with macro on the cheap. It worked, but light sources are haaaard...

So now much later, I noticed I possess two things that I didn't have before:

1) 135mm f/2 L lens with 72mm filter ring

2) 35mm f/2 Super Takumar with manual aperture, manual focus, and a 49mm filter ring


Is it worth mating these two? Is there math that would tell me my focus distance and my effective aperture and magnification?

Am I just plain insane?



Oct 19, 2016 at 06:34 AM
LordV
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p.1 #2 · p.1 #2 · Is this setup feasible? (double lens reverse ring macro)


Assuming you mean reversing the 35mm lens onto the 135mm lens then the magnification will be approx. 135/35 = 3.8:1 ie rather high.
The aperture should be the same as set on the main lens assuming the 35mm lens is wide open. Focus distance probably about 2 to 3cms in front of the reversed lens.
Brian v.



Oct 19, 2016 at 06:56 AM
zoofolk
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p.1 #3 · p.1 #3 · Is this setup feasible? (double lens reverse ring macro)


Very interesting, thanks!



Oct 19, 2016 at 09:07 AM
e6filmuser
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p.1 #4 · p.1 #4 · Is this setup feasible? (double lens reverse ring macro)


When detached from the camera, is the aperture on the Takumar closed to what you select or is it wide open?

Harold



Oct 19, 2016 at 10:35 AM
zoofolk
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p.1 #5 · p.1 #5 · Is this setup feasible? (double lens reverse ring macro)


It's fully manual, so i can make it do whatever I want.



Oct 19, 2016 at 05:31 PM







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