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07-10-2008, 11:03 AM   #1
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Cicada meets SIGMA 105

After a long-long time, my K10D- MACRO 105mm F2.8 EX DG duet are back in business with me out on the fields. The truth is that even I own the Sigma for over 2 months now, I rarely used it. So I learn it now and I have to cope with the paper-thin DOF ...
Any advise?



07-10-2008, 12:42 PM   #2
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You can play with the aperture to help with the DOF. However, you may end up needing a macro flash due to reduced light reaching the ccd. To me, the DOF is just part of macro regardless of whether it is a Tamron, pentax, or sigma lens.
07-10-2008, 02:38 PM   #3
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I agree with Blue. A smaller aperature is what you need for greater dof and a ring or off camera flash will most likely be needed.
07-10-2008, 05:29 PM   #4
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gkopeliadis,
The narrow DOF works pretty good with this image, especially after a little processing

I hope that you don't mind, but I lightened the shadows a little, then bumped the contrast a hair. In my opinion helping draw out the colours.

Oh, I rarely do, but I sharpened it a little as well.

07-11-2008, 12:26 AM   #5
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No offence, it's a nice shot, but I like the PPed version better. The original is bit dark....
But keep trying, macro is fun, but it's hard to get it right (my own experience :-( )
07-11-2008, 03:10 AM   #6
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QuoteOriginally posted by little laker Quote
gkopeliadis,
The narrow DOF works pretty good with this image, especially after a little processing

I hope that you don't mind, but I lightened the shadows a little, then bumped the contrast a hair. In my opinion helping draw out the colours.
Oh, I rarely do, but I sharpened it a little as well.



I love it a bump ; a little : and a little processing . and viola presto image magic


cheers
07-11-2008, 05:09 AM   #7
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A little dark. A great post.
07-14-2008, 01:13 AM   #8
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QuoteOriginally posted by roentarre Quote
A little dark...
The problem was that I used Center Weighted metering instead of the proper spot metering. I'll know next time
I also noticed that even up to 1/750speed there is diference in clarity when I use a tripod (in macro).

07-14-2008, 07:07 AM   #9
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cicada?



shot this in singapore, the same insect.....huge..probably three inches in length.

A200 macro.

marcus
07-14-2008, 07:13 AM   #10
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The narrow DOF is just a fact of life and at any speed a tripod is a must to lock the focus on the spot you want it on. Macros take some practice but well worth the effort. They really force you to take your time.
07-14-2008, 07:29 AM   #11
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QuoteOriginally posted by marcusyoung Quote
shot this in singapore, the same insect.....huge..probably three inches in length.
Whow! Amazing. I new that there is a great variety of this species but never imagined something so colorfull. Mediterranean kind is smaller (2-3cm) and much-much duller (obviously!).
07-14-2008, 07:30 AM   #12
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QuoteOriginally posted by Peter Zack Quote
The narrow DOF is just a fact of life and at any speed a tripod is a must to lock the focus on the spot you want it on. Macros take some practice but well worth the effort. They really force you to take your time.

tripod is essential for still life or stationary subject. For moving insects, monopods would be more mobile and flexible to move around. For other elements of wind,....... higher shutter speed with the use of flash to freeze the insects. whether it is f4 or f8, the depth of field is still very narrow for 1:1 magnification. Got to hold the breadth for that short moment when trigering the shutter, to prevent camera shake.

marcus
07-14-2008, 08:33 AM   #13
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There are several hundred species of Cicadas. We have several species here in the states that take 17 years to complete their life-cycle and another group that take 13-years. They are often called 17 year and 13 year Cicadas respectively. Regular one just take a mere 3 to 7 years.

Edit: Wikepeida has a decent article on them. Cicada - Wikipedia, the free encyclopedia
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