This sample pack includes 10 stainless steel pins of each of the 10 sizes we offer to test which work best before buying hundreds; only $8.95 .
Besides pinning insects, these pins are tools for use in teaching physics of optics. Use them to make pinhole cameras & find which sized aperture works best.
Read our Blog on 10 Things You Can do with Insect Pins.
|
Focal Length cm
|
Focal Length in.
|
Pin Size
|
Pin Diameter mm
|
|
3.5
|
1 ¼
|
000
|
0.25
|
|
5.6
|
2
|
00
|
0.30
|
|
6.9
|
2 ½
|
0
|
0.35
|
|
9.0
|
3 ½
|
1
|
0.40
|
|
11.4
|
4 ½
|
2
|
0.45
|
|
14.1
|
5 ½
|
3
|
0.50
|
|
17.0
|
6 ½
|
4
|
0.55
|
|
20.2
|
8
|
5
|
0.60
|
|
23.4
|
9
|
6
|
0.65
|
Information provided courtesy of Dan Pickard, Seattle WA
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