I want to share with you some reflexion over my conception of snoot with 3D printing.

I made some test over 2 year ago now.

My idea was to use a small diaphragme to change the size of the light spot.

Maximal aperture 25mm
I build a system with magnets to open an close the diaphragme. the result show like that

The part in the middle in grey can rotate and open or clos the hole of the diaphragme from 1 mm to 25 mm

It's works really good I was happy

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Here picture of the previous model

the principe is 100% same

on the Retra

The results (on land) ;)

the smalest point

All this was ok on land but under water I didn't have enough light power I was very happy using this snoot

It is "heavy" for traveling (like the Retra, to heavy for me)

But under water it is floating it is good I like that.

That are the 2 first Snoot I made with the principe of the diaphragme.

Know it time for a third version. I'm in the end phase of the conception and test of this new model.

First picture

After the test if all is ok I ll make a new one without the sepration to gain some gr

To be coutinued...

Wow wow wow DIY next level!!!

As Davide says, WOW!

Some more infomation



A ) is a glas from this type


The idea is to dispatch the light generate with the flash to avoid a hot point (circle with my retra) And for the Retra Maxi the 2 line (i'm still waiting for it ;) )

B ) a fresnel lens to concentrate all the light on a disk C

C ) a glas

D) a normal glas, or a lens test are not finished

C & D are all 50 mm diameter glas + lens

Between C and D I can put an try some diffrent lenses (focal lenght and type of lenses)

20 cm from the wall diameter of the light 20 cm

10 cm -> +/- 10 cm

5 cm -> 7-8 cm

This picture are with the retra focus light first power level

With one extension and a lens in it (not strong magnification)

An other experimentation

Now I need to try other combination, make some small extension to find different size of light, edges, types

After that the step of mount all this part with silicon an epoxy before going to test it underwater.

The snoot is shorter as the previous 15 cm and also lighter. With the volume it will be positive under waterand with a carabiner can be attached where it will float and did not disturb anything.

I will probably make in a second step a small extension with a diaphragm in it to have the possibility of changing the size of the light.

The main changes in the new snoot is to bring a maximum of the light from the strobe to the ouput the different lenses concentrate the light step by step in the midle.. This will reduce the power need of the strobe. and with more power I will be able to shoot at F22 to increase the deep of field on very small subject.

Comment and question are welcome ( idea also :) )