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abpho
Joined: 17 Aug 2011
Posts: 691
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 Posted: Sun May 20, 2012 11:25 pm Post subject: I can honestly say that the MP-E rocks |
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Paper Wasp taken with the MP-E at 2:1 f/4 with 0.005" (0.127mm) increments. I am playing it really safe and capturing a lot of extra overlap. According to my calculations I could have gotten away with 0.007" increments. I could have taken 30(ish) less frames.
Flash was the primary light source. I did screw up on the lighting a bit but this image really turned out well.
Tried a new background. Awesome.
I also failed to clean the subject properly before the photo shoot. There was a bit of cloning involved...maybe 2 hours worth. I did not mark the time when I started the editing, but given that my left eyeball is cowering under the desk crying itself to sleep I think that estimate is about right.
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abpho
Joined: 17 Aug 2011
Posts: 691
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| Posted: Sun May 20, 2012 11:40 pm Post subject: |
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Quick update:
Final depth of field is around 11.8mm. At 2:1 @ f/16 the DOF for a single shot is only 0.840mm (from the MP-E user manual). At 2:1 @ f/4 (like I was shooting) the DOF for a single frame is 0.210mm. |
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abpho
Joined: 17 Aug 2011
Posts: 691
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| Posted: Tue May 22, 2012 2:58 pm Post subject: More testing with the MP-E |
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I have taken a few stacks of this subject with the MP-E. At magnifications of 2:1, 3:1, and 4:1 with excellent results. I just finished reviewing my three 5:1 stacks. No post processing. Capture 640x413 100% crops and resized to 1024x682 (giving you a 200% view of the areas highlighted in the overview).
Here is the overview:
Top left at f/2.8 with 1thou increments:
Top left at f/4 with 2thou increments:
Top left at f/5.6 with 3thou increments:
Centre at f/2.8 with 1thou increments:
Centre at f/4 with 2thou increments:
Centre at f/5.6 with 3thou increments:
Last edited by abpho on Tue May 22, 2012 3:06 pm; edited 1 time in total |
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abpho
Joined: 17 Aug 2011
Posts: 691
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| Posted: Tue May 22, 2012 2:58 pm Post subject: |
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Bottom at f/2.8 with 1thou increments:
Bottom at f/4 with 2thou increments:
Bottom at f/5.6 with 3thou increments:
Looks like f/2.8 and f/5.6 are about the same in detail level. f/4 has a noticeable lead when reviewing an image at 100%. Printed at a modest 8x12", or viewing the full image on my 22" computer monitor, the differences would not be noticeable. |
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Craig Gerard
Joined: 01 May 2010
Posts: 2602
Location: Australia
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abpho
Joined: 17 Aug 2011
Posts: 691
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| Posted: Tue May 22, 2012 5:52 pm Post subject: |
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| Link dead Craig. |
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Craig Gerard
Joined: 01 May 2010
Posts: 2602
Location: Australia
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| Posted: Tue May 22, 2012 6:09 pm Post subject: |
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oops!
I left off the topic number:
http://www.photomacrography.net/forum/viewtopic.php?t=1723
Some additional information for reference:
| Charles Krebs wrote: | For me, with the 65mm MP-E there are some rough personal guidelines for the apertures I'll use. If the shot is to be a "single" shot (no stacking) and there is a strong need for as much DOF as possible, I try to keep it at around these apertures (with an APS sized sensor):
1:1 ... f/11 ( effective f/22 )
2:1 ... f/8 ( effective f/24 )
3:1 ... f/7.1 (effective f/28 )
4:1 ... f/5.6 ( effective f/28 )
5:1 ... f/4.5 ( effective f/27 )
Obviously these are not "engraved in stone", and these settings are for cases where DOF is perhaps a bigger concern than normal, and I am willing to sacrifice some resolution to gain DOF. If the subject can be positioned, or the angle of view can be changed to allow a larger aperture I'll do that. And if the absolute greatest DOF possible is of utmost importance I might nudge it down slightly more. |
Another MP-E 65mm related reference (I have the information saved in a text document entitled "Rik MP-E Notes"). I presume Rik is referring to focus stacking guidelines in the following quote.
| Rik wrote: | Usually the tricks for getting a sharp image are to:
1. set aperture so as to keep effective f-number around f/11 (on APS sensor),
2. kill vibration by using either flash or an exposure time long enough for shutter-induced motion to die out, and
3. sharpen in post-processing as necessary to compensate for loss of contrast because of diffraction. |
Another reference:
http://www.photomacrography.net/forum/viewtopic.php?t=8470
Craig
*edit: Our posts crossed paths and I've added more information since your initial response.
_________________
To use a classic quote from 'Antz' - "I almost know exactly what I'm doing!"
Last edited by Craig Gerard on Tue May 22, 2012 6:25 pm; edited 2 times in total |
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abpho
Joined: 17 Aug 2011
Posts: 691
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| Posted: Tue May 22, 2012 6:10 pm Post subject: |
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Reading....
Thanks. |
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Macrero
Joined: 01 Sep 2011
Posts: 104
Location: Valladolid , Spain
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| Posted: Wed May 23, 2012 2:27 am Post subject: |
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Great colors, composition and sharpness! Yep, the MP-E is a superb lens, sometimes I regret selling it ...
Cheers ! |
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abpho
Joined: 17 Aug 2011
Posts: 691
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| Posted: Wed May 23, 2012 6:38 am Post subject: |
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| Macrero wrote: | | ..the MP-E is a superb lens, sometimes I regret selling it ... |
The horror! [pause] THE HOROR!
PS: Thanks. |
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