10 Insect Pin Variety Pack

SKU: 33415-All

$8.95USD Each

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[5]   1 Reviews    | Write a Review

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.

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Specifications

Suggested Pin Diameters for Optimal Focus (focal length) for Pinhole Cameras

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
 
Focal Length as defined here is the distance from the pinhole at the front of the camera to rear where the photographic film or paper is placed. This is the distance of best theoretical focus of the pinhole camera's image with a pinhole of particular diameter.

The actual pinhole size/aperture made with a particular pin will likely be slightly larger than the diameter of the pin shaft.A small diameter pinhole has a shorter effective focal length; however smaller diameter pinholes will also require longer exposure times than larger pinholes. Depending on your photographic/artistic goals (ultra-sharp focus may not be required, or even desired) you may wish to choose a larger pinhole and give up some sharpness for faster more practical exposure times.

Information provided courtesy of Dan Pickard, Seattle WA 

Reviews (1)
2019-12-17
This was my first time with Indigo Instruments. Quick service. Great products. In this case, stainless steel insect pins. I'm glad I got the sample pack because I found the right size I wanted and it helped me with my next purchase. Way to go Indigo!
— TK
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