IOT - In The Air Challenge - Portable Field Tester

RE: IOT - In The Air Challenge - Portable Field Tester

DAB — Thu, 08 Jan 2015 19:40:48 GMT

Very nice.

I am hoping to make a camera for a microscope I bought at a garage sale.

I got an entire kit, plus a camera adaptor for 1 USD. Could not believe my eyes and quickly swooped it up.

Now all I have to do is find some time when I can focus on the build.

DAB

RE: IOT - In The Air Challenge - Portable Field Tester

jw0752 — Thu, 08 Jan 2015 06:40:11 GMT

Hi Chrystal and Dale, You have made very good progress. [mention:8fb233e8974445138ef0af2b63b49f94:e9ed411860ed4f2ba0265705b8793d05] is right an F stop will help with the depth of field and the blur at the edge of your picture but might require a brighter illumination. It is great to see an application of electronics to biology, something we don't see too often here. I will watch for future posts.

John

RE: IOT - In The Air Challenge - Portable Field Tester

mcb1 — Thu, 08 Jan 2015 06:07:26 GMT

Chrystal

This is progressing.

You will have noticed that as you increase the magnification, the depth of field (part that is in focus) reduces.

You could try experimenting with reducing the diameter of the back of the magnification lens.This may reduce your overall image size (if you are using the full size) but may be sharper.

Each reduction will also reduce the amount of light, until the image sensor runs out of light, at which point you will need to add external subject lighting.

This link might help to achieve a better DOF when you go higher than 80x magnification.

http://www.cambridgeincolour.com/tutorials/depth-of-field.htm

Mark

RE: IOT - In The Air Challenge - Portable Field Tester

pmohan — Thu, 08 Jan 2015 05:31:38 GMT

Fantastic. Could you post more pictures or instruction on the building of microscope?

the centrifuge looks awesome.