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Yellow Jacket

 
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Kevin Childress



Joined: 14 Aug 2015
Posts: 24
Location: Lowell, North Carolina

PostPosted: Tue Aug 18, 2015 6:51 am    Post subject: Yellow Jacket Reply with quote

Greetings from a forum newbie. I'm sharing this image primarily to link into a forum discussion related to reversed-lens photography that involves techniques for stopping down the reversed lens versus the main lens.

This image is typical of my projects where I use the Nikon AF-S DX Macro 85mm f/3.5 as the main lens and the Nikon 50mm AF-S f/1.8 as the reversed lens. This image was shot with the main lens stopped down to f/16 and with the reversed lens wide open.

Nikon D800 ~ ISO100 ~ focused-stacked from 46 1-second exposures with lens/camera adjusted in 0.10mm increments. One continuous 5,000k light illuminating the background and the rear of the subject, and one off-camera speedlight directly on the subject.


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bobfriedman



Joined: 28 Jul 2009
Posts: 182

PostPosted: Thu Aug 20, 2015 3:02 am    Post subject: Reply with quote

pretty nice at 1.8X and f/16... is it possible to shoot with both lenses wide open without vignetting?....
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Kevin Childress



Joined: 14 Aug 2015
Posts: 24
Location: Lowell, North Carolina

PostPosted: Thu Aug 20, 2015 3:27 am    Post subject: Reply with quote

bobfriedman wrote:
... is it possible to shoot with both lenses wide open without vignetting?....


Thank you, Bob. And truthfully I don't know the answer - I've never tried with both lenses wide open. I've never felt that I've had particular issues with vignetting using this lens combination. What vignette you see here was added in post.
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bobfriedman



Joined: 28 Jul 2009
Posts: 182

PostPosted: Thu Aug 20, 2015 3:57 am    Post subject: Reply with quote

i was mistaken it is the other way around... since you are at f/16 without vignetting in the viewfinder (unless you are cropping it out of the image) you should be able to shoot wide open with the main lens and get sharper images since there will be less diffraction effects.
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Kevin Childress



Joined: 14 Aug 2015
Posts: 24
Location: Lowell, North Carolina

PostPosted: Thu Aug 20, 2015 4:30 am    Post subject: Reply with quote

bobfriedman wrote:
... you should be able to shoot wide open with the main lens and get sharper images since there will be less diffraction effects.


I had only tried once in the past to shoot the main lens wide open with the reversed lens stopped down. Problem was I had no way to 'precisely' measure/control the f/stop of the front lens and the results were terrible. I actually am on my way to being able to fix that however. This afternoon I should receive a gadget to help me better control the reversed lens aperture. I'm looking forward to it!
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