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Amateur medical imaging

kenuck

Burnaby, CA
114 posts

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kenuck Silver Member Nikonian since 03rd Nov 2008
Fri 14-Sep-12 12:58 AM | edited Fri 14-Sep-12 11:38 PM by kenuck

Using a V1 for macro: A friend wanted pictures of her kidney stone before sending it in for analysis. I mounted the V1 + FT-1 to my old bellows + 50mm f/1.4 D lens. I had to put an extension tube in front of the bellows so that the "foot" on the FT-1 didn't hit the rails on the bellows. I found I couldn't just use extension tubes as the V1 gave an FEE error, even though the lens was set at f/16. Another option would be to use extension tubes and reverse the lens, but I couldn't find my reversing ring.

Click on image to view larger version


Depth of field is always a problem in cases like this...f/4 1/3 sec electronic shutter, remote trigger, un-cropped. Focus on nearest side, Levels and moderate sharpening

Click on image to view larger version


So I took 5 images focused across the depth of the kidney stone, then merged them in Helicon Focus. The stone was about 4 mm across and apparently very painful - it looks like cut glass!

Click on image to view larger version


Attachment #1, (jpg file)
Attachment #2, (jpg file)
Attachment #3, (jpg file)

Ken

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nwcs

Knoxville, US
6895 posts

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#1. "RE: Amateur medical imaging" | In response to Reply # 0

nwcs Silver Member Awarded for his in-depth knowledge in various areas, including Landscape and Wildlife Photography Nikonian since 15th Jan 2006
Fri 14-Sep-12 06:43 PM

Very interesting! And a great use of the V1 + macro. I've experimented with the V1 and my 105 macro but haven't had a lot of time to really try something special yet.

Snappo

Tulsa, US
378 posts

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#2. "RE: Amateur medical imaging" | In response to Reply # 1

Snappo Silver Member Nikonian since 10th Apr 2004
Thu 11-Oct-12 12:27 AM

Cool project, very well done. Wish I still owned my bellows from 30-40 years ago.

an old duffer with the time to have fun,
Jim

KnightPhoto

Alberta, CA
4603 posts

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#3. "RE: Amateur medical imaging" | In response to Reply # 2

KnightPhoto Gold Member Nikonian since 18th Dec 2006
Mon 15-Oct-12 11:50 PM

+ 1

Super interesting!

Yay V1 to the rescue. I just, finally, did some birding with mine and the FT-1 and it was a lot of fun.

Best regards, SteveK

'A camera is an instrument that teaches people how to see without a camera.' -- Dorothea Lange
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