RE: Friday blossom frame...

Bob:
Three reasons for the depth of field/focus/exposure choice:
1. I was using 200mm at f/18. Any smaller aperture and I'd start to lose sharpness due to diffraction. Hyperfocal distance setting wouldn't quite get everything sharp at f/18 and 200mm. I was using manual focus and checked for exactly that.
2. I wanted the eye to go to the moon, but notice the blossoms. So I made the moon tack sharp, the blossoms soft. I have other exposures with less depth of field, but the blossoms become an indistinct white wash. f/18 gave the best effect. The moon had to be sharp, or it became a bright blob in the sky. Not pretty.
3. There was also quite a bit of wind. While the blossoms got blown around, the moon held still, at least for 1/400th of a second. (Actually, I could have gone as low as 1/30 second and had the moon appear sharp. Much below that, earth and lunar motion start to blur things.) ISO 400 was as high as I could go without excessive digital noise, so 1/400th at f/18 was what I had for exposure. 

Mark Bohrer
Wildlife Photography on the Urban Edge
www.mountain-and-desert.com


At 07:31 PM 3/21/2008, you wrote:

DEAR MARK,
        Any particular reason you didn't use the hyper focal distance and
appropriate f stop to keep both the blossoms and moon in focus.  In the
image there seems to be sufficient light to allow a higher f stop.  Or was
it a creative choice to allow the blossoms to go soft?
                CHEERS!
                        BOB

-----Original Message-----
From: leica-bounce@xxxxxxxxxxxxx [mailto:leica-bounce@xxxxxxxxxxxxx] On
Behalf Of Mark
Sent: Friday, March 21, 2008 1:11 AM
To: digitalusersgroup@xxxxxxxxxxxxxxx; paw@xxxxxxxxxxxx
Cc: leica@xxxxxxxxxxxxx
Subject: Friday blossom frame...

The blossoms explode every year. A nearby street always has a line of
branching trees wearing white flowers. That's how I know spring is coming.

I had the M6 TTL in the car Sunday, and stopped to capture the march
of trees. After I'd clicked the last frame on the roll, I noticed the
moon above one of the blossom crowns. So I went home to get more
film. I discovered I was out,  so I grabbed the digital camera with
the 70-200mm and drove back.

By this time, the moon had set a little. But I like what I got:
http://tinyurl.com/35vq3b

All comments welcome.

Mark Bohrer
Wildlife Photography on the Urban Edge
www.mountain-and-desert.com


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