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Archive 2015 · Woodlouse Through Reversed Schneider FM 40mm

  
 
e6filmuser
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p.1 #1 · p.1 #1 · Woodlouse Through Reversed Schneider FM 40mm


I had put aside this lens for about a year so that I could try out some others. Having been told by its previous owner that it out-performed the MPE-65, and having considered the new Venus x1-x2 lens, I put it back in action yesterday. This is at the lower end of the magnification range for which performance is better with the lens reversed.

I found out afterwards that the ca. 45mm extension gave a FOV 9mmm wide, the same as I would expect with the Venus at x2. The working distance was ca 50mm.I used Olympus OM extension tubes, which are better than alternatives, which tend to twist undone under the weigh of a flash gun on the barrel. In this case, the second gun was free-standing.

EM-1, 45mm extension, Schneider HM 40mm f2.8 at 1/60* f16 ISO 200, TTL RC flash (main unit diffused), hand-held with support from substrate. I found that I needed f16 to get the required DOF. even so, the antennae are not sharp throughout their lengths.

* the shutter speed should have been higher but I had forgotten that this lens has a stop-down lever which I had moved, such that several exposures were at f2.8 an grossly-over-exposed, the metering unable to cope. During the re-setting of the camera, to try to rectify this, the low shutter speed was un-noticed.

Image uncropped.

Harold



© Harold Gough 2015



Edited on Mar 28, 2015 at 02:33 AM · View previous versions



Mar 28, 2015 at 01:33 AM
LordV
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p.1 #2 · p.1 #2 · Woodlouse Through Reversed Schneider FM 40mm


Wonderful capture Harold
Brian V.



Mar 28, 2015 at 01:51 AM
e6filmuser
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p.1 #3 · p.1 #3 · Woodlouse Through Reversed Schneider FM 40mm


LordV wrote:
Wonderful capture Harold
Brian V.


Thanks, Brian.

I have just added the working distance to the text.

I have never before attempted a portrait of a woodlouse.

I had to get the lens down with its barrel touching the substrate to get this angle of view, something which its barrel diameter of ca 45mm may give an advantage of certain popular alternatives.

Harold



Mar 28, 2015 at 02:02 AM
danski0224
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p.1 #4 · p.1 #4 · Woodlouse Through Reversed Schneider FM 40mm


Very interesting.

Is this a stacked image?



Mar 28, 2015 at 02:40 AM
e6filmuser
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p.1 #5 · p.1 #5 · Woodlouse Through Reversed Schneider FM 40mm


danski0224 wrote:
Very interesting.

Is this a stacked image?


Single frame, f16.

Harold




Mar 28, 2015 at 02:43 AM
e6filmuser
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p.1 #6 · p.1 #6 · Woodlouse Through Reversed Schneider FM 40mm


I have now posted the setup details in the Shooting With Tubes topic:

https://www.fredmiranda.com/forum/topic/1001614/44#12937193

Harold



Mar 28, 2015 at 05:25 AM





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