At first I was somewhat critical respect. Of Delamax, see the reviews with a yellow tinge. But who cares, when RAW is to correct everything yet, one can also for flash images build an appropriate color profile, no problem.
The feared yellowing I have not noticed. The part snapped firmly on the 580EX II, no use of force, etc. necessary, is also good again by lightning 'down. Pricewise the thing is also "price-value".