So mark me down as another H502 owner... well 502"d" for me. I'd lost my beloved H51w last summer/fall and was pocketing my somewhat large Quark-X AA2 neutral since then. I dont mind the extra length, and the ouput is spectacular (though the tint isnt great) but what I really missed was the headlamp aspect of my H51 (even though I probably used it handheld as much or more). I was sure it would eventually turn up, so I wasnt in a big hury to replace. Was really hoping ZL would come out with the next replacement for it, like a H52 series. Well with camping season upon us I had to put an order in. Looked at lots of options but for the smallest size and highest output to weight ratio and awesome UI I stuck with ZL. Would have got the H51fw if it was in stock, but decided on the all flood, and really like neutral tints so thought I'd give the D a try. I was thinking I could affix it with a mini headband around my camera lenses for macro photography too since I have yet to get a ring flash. Having it on all the time might spook some insects, will have to experiment, but another reason I was looking at the high CRI choices.
And wouldnt you know, a few days after I placed my order, actually just one day before recieving my new H502d, I found my H51w. But thats ok, I guess I'm finillaly becoming a flashaholic
I could easily get by with nothing more than my H51w, it seems to be the jack of all trades. Used the 502d now a few times, and I really do like it, both the wide flood and the tint. It is a tad bit cooler that the H51w, as expected, but just a little. No funny green or violet or any unexpected tint whatsoever, just a perfect crisp white.