Backscatter HF-1 Strobe Reduction Ring Set 

Backscatter HF-1 Strobe Reduction Ring Set 

with Macro and Super-Macro restrictors

This is an updated version of similar set I created last year. I decided to update and make it a bit more flexible, inspired partly by the Retra design.

https://makerworld.com/en/models/1746548-reduction-ring-set-for-backscatter-hf-1-strobe-v2#profileId-1856417

There is a primary reduction ring that does not block the light path but slightly limits spread of the wide-angle beam. I've found this useful for reducing flare and glow with very wide-angle lens (fisheye, etc) in less than crystal clear water. You can add additional restrictors with 60mm and 38mm apertures. These are useful for macro scenes and help to limit illumination of background features.

The rings are printed with PETG. There are three TPU rubber parts that hold the rings in place. The largest is a Bumper than can be placed on the HF-1 permanently and protects the strobe from bumps and scratches even when not using the reduction rings. I wish I'd done this when I first got the HF-1s as mine are pretty dinged up on the leading edge. Two smaller rubber gaskets are stretched over the macro rings and provide enough friction to hold the rings in place securely. Diffusors and Color filters can be used in combination with the set.

Here is a comparison of the effects of the reduction rings. Shot from a distance of about 1 meter with a 15mm FE lens: