Chris Ruijter

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Home-made orangejuice flashtube?

Published August 26th, 2011

Hello everyone,

In her comment on my picture 'Let's Dance' our fellow 500px member Jane Sleeth posted that she had no idea what my home-made orangejuice flashtube was. This is not the first time I got that question so here we go:

First of all, the 'problem' or rather 'challange' with my macro's is, in my opinion, the available light. Typical I want a small aperture of f/11 and above, even better is f/16. Together with that small aperture I want a low ISO rating to get the most out of my pictures. With my macro lens, a 90mm, I need at least a shutter speed of 1/125 to avoid shaken images, eventhough I have set my 'SR' on in my K-x body.

So summed up that's:

- f/16

- iso100

- 1/125

Do the maths, I need a lot of light!

The typical insect macro-lens is, imho, at least 90mm and has a aperture of f/2.8. That means a long lens, and that means that if I use my built-in flash, the light of the flash does not reach the object that's in front of my lens. So it's pretty useless...

I need to ...

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