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GregAlex Show full post »
 
YoungCollector
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YoungCollector
The 12 mega-pixels of an iphone camera hold up very well to a typical scanner's 300 DPI.
Optics is important in both cases ....

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Rhino89
@GregAlex and @YoungCollector nice photos, are you using a 10x lens mounted to the iPhone and then balanced, or do you just put the camera above a 10x loupe/magnifier and the loupe/magnifier sits on the note? I've tried taking closeups in the past but there's only so close I can get before it becomes too blurry and can't focus, so I've taken photos at the min distance it's willing to go and then crop them.
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YoungCollector
Rhino89 wrote:
@GregAlex and @YoungCollector nice photos, are you using a 10x lens mounted to the iPhone and then balanced, or do you just put the camera above a 10x loupe/magnifier and the loupe/magnifier sits on the note? I've tried taking closeups in the past but there's only so close I can get before it becomes too blurry and can't focus, so I've taken photos at the min distance it's willing to go and then crop them.
 

Nope - this is just my vanilla iphone Xs .... no additional lens or anything - i point the camera and use my fingers on the screen to take it up to 10x and then I just snap ...  i can keep focus (as I approach from a longer distance) down to about three inches
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YoungCollector
Note the "10x" indicator in the circle at the bottom on the screen snap
(this is the forum's little 'back' button as displayed on my not-so-great-rez desktop monitor)

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GregAlex
 
... i point the camera and use my fingers on the screen to take it up to 10x and then I just snap ...  i can keep focus (as I approach from a longer distance) down to about three inches


No lenses either. I used a flash for mine. Not sure if that's overkill, but I'll experiment some more. I also put mine on a 3-second timer. That gives the camera a moment to settle after I hit the shutter button.
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YoungCollector
GregAlex wrote:


No lenses either. I used a flash for mine. Not sure if that's overkill, but I'll experiment some more. I also put mine on a 3-second timer. That gives the camera a moment to settle after I hit the shutter button.


I recommend alternative lighting (like a desk lamp) and no flash - if you look you will see your sheep are completely bleached out in spots - if you support the phone on something other than your shaky hands (like a TP roll) the auto-stabilization software on the phone deals very well with low lighting environments

unlike a scanner or old-fashioned film, the phone uses digital memory to "think" about many many images it is accumulating to deduce what is actually being seen .... for these vignettes the phone figures out that it is looking at a static unchanging image and trips into a mode for combining 100's of images into one ...  the phone has other modes for capturing things in motion ...

because the phone has multiple cameras on the rear, it should be possible to have a mode where it realizes it is looking at a curved piece of paper and maps it back to an image that is "as if" the paper was being held flat .. in fact, you could write an app to do that ....
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Dollarsavr
I really enjoyed reading and seeing the items displayed in this thread. Thank you all for making me aware of tiny printing. Now all I need to do is learn how to take pix from my cheap usb-microscope camera and display them here...
SPMC  2676  PMCM  1116
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Dollarsavr
OK here goes...  Has anybody seen this micro-print on the Forever stamp. I just noticed it.

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SPMC  2676  PMCM  1116
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YoungCollector
Dollarsavr wrote:
OK here goes...  Has anybody seen this micro-print on the Forever stamp. I just noticed it.
 


It seems the microprinting is on the issued stamps, but it does not appear on the stamp's image at the USPS online store ...
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