GeoffLawrence.com Photo Gallery - Crocus Verni

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Home » Member Galleries » Kev

Crocus Verni - Iridaceae

Photo Details
Kev Registered: February 2008 Posts: 2,722	Nothing too spectacular, just a simple Crocus from the front garden. It's extremely windy here right next to the ocean today... However, I did manage to find one specimen that was relatively still quite decent.
	· Date: Sun March 13, 2011 · Views: 1116 · Filesize: 331.3kb · Dimensions: 585 x 900 ·
	Additional Info
	Keywords: Crocus Verni - Iridaceae

Author

Thread

Beth

Registered: May 2010
Posts: 1,601

Sun March 13, 2011 11:49pm

It's that time of year again, Kev! I love seeing all your flowers!! I like this version best of the two. It has the stacked version, and the close up. I like that about it. You did a great job!

Kev

Registered: February 2008
Posts: 2,722

Sun March 13, 2011 11:54pm

Hi Beth...Actually, it's not a stacked image...I just used a regular, single shot at f/22 on this one. However, f/22 at this distance does provide a good/adequate depth of focus.

Beth

Registered: May 2010
Posts: 1,601

Mon March 14, 2011 1:02am

Okay, now I'm a bit confused :/ Why did f/22 on the other shot have such a short depth of field, while on this on it is quite clear? You are further away, I think, but I didn't think it would make that much difference!

Kev

Registered: February 2008
Posts: 2,722

Mon March 14, 2011 2:15am

Yes, the distance (ratio) makes all the difference.

For example.
When shooting macro 1:1 at f/22 (with a 100mm lens)...there is only about a 2mm Depth of field obtained. Whilst shooting a lot further back (say at 1:8 ratio or more)...f/22 will create a much larger depth of focus.

Once you get into the macro range (ie: 1:2 or 1:1 etc)...the DOF becomes way smaller.

richingr

Registered: October 2010
Posts: 1,511

Mon March 14, 2011 9:25am

Love the match of the outer and inner sections of the flower on the same picture
Very clear. Well done

Beth

Registered: May 2010
Posts: 1,601

Mon March 14, 2011 5:11pm

Wow that's a big difference! I see what you mean! Thanks for explaining!!

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If your monitor is calibrated properly you should see sixteen distinct tones from white to black.