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Home » Macro   Next image

Thistle_13
Common Thistle (Cynareae) - Asteraceae

Photo Details
Kev



Registered: February 2008
Posts: 2,722
users gallery
I noticed this common Thistle this morning whilst walking the dog and thought to myself...
"hmmm, that would be a good subject for my next blog article on "how to obtain both a f/16 type DOF and also a nice background bokeh together"
I think I achieved what I was going for here. A decent 'depth' of focus on the plant itself...and the creamy background look to give it that softer vibe.
Here's another, more closeup version @ f/22
http://kvincentphotography.ca/macro/h154035fc#h154035fc
(click on image to view larger size)
· Date: Tue July 12, 2011 · Views: 677 · Filesize: 407.6kb · Dimensions: 899 x 708 ·
Additional Info
Keywords: Common Thistle (Cynareae) - Asteraceae
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richingr

Registered: October 2010
Posts: 1,459
Tue July 12, 2011 8:08am

Spikeys Back Yeha .So when can we expect the Blog Kev.Is This a Scottish Thistle ??
PS:Pics good as well Wink
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Kev

Registered: February 2008
Posts: 2,722
Tue July 12, 2011 8:28am

IF it is...what's it doing here in Canada?...probably an illegal immigrant just like the Scottish Broom shrub that is invading our local woodlands and killing domestic plants, etc (sound familiar Smile
Like I said...I calls it the Braveheart toilet brush.
Brings tears to my eyes - laddie.
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richingr

Registered: October 2010
Posts: 1,459
Tue July 12, 2011 8:49am

Smile
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Clem

Registered: February 2011
Posts: 662
Tue July 12, 2011 10:45am

Interesting that you can blur the background with f16 (or higher). Looking forward to that blog. How 'bout a hint? Is it because you're using a macro lens or extension tube?
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Kev

Registered: February 2008
Posts: 2,722
Tue July 12, 2011 6:48pm

It's basically a combination of three elements.
1) Using a longer focal length (ie: in the 200-300mm range)
2) Positioning the subject so that the background is at least 30 ft behind it.
3) Shooting from the right distance (to the subject) in order to get the correct balance between DOF across the subject and maximum bokeh effect.


No tubes or special lens are required really. I just used my 105mm (157mm on my DX body) macro here. Altho, I would have prefered to have the Nikon 300mm f/4 for this kind of approach.


IF I had the 300mm f/4...I would use it with a 52mm extention tube to shoot macro distance shots at about 1:2 ratio with a great/creamy background.
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