Colour Tag lower reflectance than expected

[lionfish0]

Problem: The coloured tags we tested were less bright than expected.

They will be probably be 'sufficient' but ideally would be brighter.

Sub-tasks:

• We need to check non-colour (plain) tags - to see how much it genuinely is due to the colour.
• If it IS the colour filters that have reduced the brightness - would it help if we make a tag that is mostly a clear filter, with just some colour filter included?
• So we should test clear filters (to see what effect they have)
• try with partial colour tags

• 

Also:

• clarify tag size during experiment
• brighter flashes?
• bigger tags.
• (the experiment in photo might have been a little out of focus).