Tuesday, April 10, 2007

Microscopy: chilli slice and fly

Photos captured using a Panasonic FZ-30 with a reverse mounted Super-Takumar 50mm f/1.4 and a Vivitar 28mm f2.8. Stopped down, the Super-Takumar is absurdly sharp, as vividly demonstrated in the first fly images.

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Green channel of a colour photograph

A full-sized crop of the preceding image

The next images might be disturbing to some people. They are closed up images of a fly's various anatomical details, including but not limited to the compound eye, transparent wing, hairy thorax and barbed legs.

Please do not complain that you were eating/drinking tea/having sex and this post made you throw up.

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A close up of the wing's joint

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The wing's leading edge is serrated

The Eye

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Blogger lcf said...

two sets of spicy pictures

9:55 am, April 11, 2007  
Blogger sabrina said...

Dude the pixx of the fly is just awesome!!!!!!

9:58 pm, April 12, 2007  
Blogger Lao Chen said...

Glad you did not go "eeew so gross!"

Even happier you found it awesome. :D

10:50 pm, April 12, 2007  
Blogger sour milk said...

OH MY GOD I LOVE YOUR FLY PHOTOS!!! When did you open it???!!

11:23 pm, April 12, 2007  
Blogger Albert said...


You mean the FZ-30 stopped down? Because stopping down the reversed ring just introduces vignetting without affecting sharpness.

12:16 pm, April 13, 2007  
Blogger Lao Chen said...

Sour Milk:
Good, another supporter of microscopy... What open?

No, it was the reversed 50mm f1.4 that was stopped down. It vignettes a bit, hence the black boundary. My FZ-30 has an 84mm lens and a 7.2mm sensor, so vignetting from the reverse mounted lens does not intrude into the image circle until about f8 or so.

Sharpness does increase, if only by extending the depth of field from 1/10 of a fly width to 1/4 of a fly width.

4:00 pm, April 13, 2007  
Blogger Glaring Notebook said...

Ah. I did not know sharpness increased, because I never had a superzoom with a small exit diameter. Does stopping down on the reversed lens lose light?

1:32 am, April 15, 2007  
Blogger Lao Chen said...

Yup, stopping down does lose me light. But i dont know if it loses light exactly like a typical lens which halves the light every stop.

8:53 am, April 15, 2007  
Blogger Albert said...

I'll test it when I remember; if it halves the light the shutter speed should be twice as long.

11:08 am, April 16, 2007  

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