Macro Mysteries to Solve

Eyelight

Senior Member
This is a 947 pixel wide crop from the 6,000 pixel width of a near 1:1 shot, which all means this is about 4 mm wide of life size stuff.

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Eyelight

Senior Member
I don't know what 1:1 is. Natural sunlight. It's not pepperonis or nail heads. Not everyone is going to know this. :)

1:1 would be 1mm of subject = 1mm of image. So, if using a sensor that is 23.2mm wide (Nikon DX), the image captured would be 23.2mm of the actual subject.

So, if this were 1:1 from a DX sensor, then the small round objects would be slightly larger than 1mm.
 

YOT

Senior Member
1:1 would be 1mm of subject = 1mm of image. So, if using a sensor that is 23.2mm wide (Nikon DX), the image captured would be 23.2mm of the actual subject.

So, if this were 1:1 from a DX sensor, then the small round objects would be slightly larger than 1mm.

Thanks for the explanation. Yes its 1:1.

ETA: I don't know a ton about digital photography terms, but I take some nice pictures.
 

Eyelight

Senior Member
Thanks for the explanation. Yes its 1:1.

ETA: I don't know a ton about digital photography terms, but I take some nice pictures.

It is the reproduction ratio which all lenses have and is a measure of how close they focus. Mostly only see it mentioned with macros.

I think your mystery has us bewildered.
 

YOT

Senior Member
The image above is a picture of Alliant™ Blue Dot gun powder. It was taken with a Panasonic Lumix DCM-LZ7, in macro mode, with natural sunlight. I use this image for my desktop.
 

Eyelight

Senior Member
The image above is a picture of Alliant™ Blue Dot gun powder. It was taken with a Panasonic Lumix DCM-LZ7, in macro mode, with natural sunlight. I use this image for my desktop.

I knew I knew it. It had a familiar look. But been probably 30 years since seeing smokeless, other than as it followed the projectile(s) out the barrel. Good one.
 

Eyelight

Senior Member
Another easy one. 1:1 of a fairly common substance on a fairly common object. Need to know the substance and the type of object.

20140708-DSC_0166_1024_1.jpg
 
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