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Oak leaf gall

 
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lauriek
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Joined: 25 Nov 2007
Posts: 2404
Location: South East UK

PostPosted: Sat Sep 06, 2008 10:03 am    Post subject: Oak leaf gall Reply with quote

I found some of these nice galls on the underside of oak leaves today, not seen this particular sort before. I couldn't get a totally satisfactory shot outside so I brought a couple in to shoot in the macro studio.

Stack of 33 images with OM50/1.8 at f5.6 on OM Bellows at around 2/3 extension. Subject around 2-3mm across.

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Planapo



Joined: 07 Nov 2006
Posts: 1533
Location: Germany, in the United States of Europe

PostPosted: Sat Sep 06, 2008 10:51 am    Post subject: Reply with quote

This stack worked out very nicely, Laurie!

I think I havenĀ“t seen this particular bowl-shaped form either, or is it just the highly magnified view that makes things look so unfamiliar?!
Anyway, it always amazes me how animals can influence plant tissue to grow such regular structures!

--Betty
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lauriek
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Joined: 25 Nov 2007
Posts: 2404
Location: South East UK

PostPosted: Sat Sep 06, 2008 11:03 am    Post subject: Reply with quote

Thanks Betty! Smile

To the naked eye they appeared more disk like than bowl shaped...

I also found several other galls today, a couple of which I'll probably post over in the nature forum.
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rjlittlefield
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Joined: 01 Aug 2006
Posts: 20269
Location: Richland, Washington State, USA

PostPosted: Sat Sep 06, 2008 12:10 pm    Post subject: Reply with quote

Very nice. The falloff in sharpness is gradual enough that this picture still says "small subject", even though the whole subject is still in sharp focus. Without that falloff, there would really be no indication of size in the image itself.

--Rik
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lauriek
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Joined: 25 Nov 2007
Posts: 2404
Location: South East UK

PostPosted: Sun Sep 07, 2008 5:55 am    Post subject: Reply with quote

Thanks Rik!

I did actually consider shooting right through and getting the bg in focus as well, as I thought the pattern on the underside of the oak leaf was quite nice but decided not to because I generally prefer the look of these stacks if there is some focus falloff at the back..
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