ZebraLight H502 XM-L

[Esko]

Re: ZebraLight H502 X-ML

Question: to the extent the "reflector" (I think it's more of a 'backdrop,' really) on the H502 is casting a tint, wouldn't it be casting that tint forward to the center of the beam? I'd think light at the edges of the beam would originate directly from the emitter, not arrive at the edge of the beam by bouncing off the "reflector"-- that would concentrate light forward.

Yet we're not hearing the center of the beam has a greenish tint. I'd suspect the emitter itself for a fringe of green tint, not the "reflector" (backdrop).

The reflector is far too wide and shallow to produce a collimated hot spot, but it could reflect the light (emited from ~120 to 180 degrees) to outer edges... My Fenix TK21 (XM-L U2) has a deep reflector which projects the sidespill to a collimated hot spot. While he hot spot looks rather white (slightly greenish), it has a wide corona which is distinctively green. The spill is a bit on a violet side. The led seems to be very similar to the one presented by SlowPoke808 (quoted by YoSeKi).

Once we get the c and d models, we know better.

 

[MountainVoyageur]

Re: ZebraLight H502 X-ML

With regard to the green tint discussion -- is it feasible for someone to just (temporarily) cover the green GITD area and then see whether or not the beam still has a green fringe?

 

[mobi]

Re: ZebraLight H502 X-ML

I put the H502 on one of its low settings.

Looking directly at the emitter, straight on, the emitter looks white.

As the light is rotated, and the angle off center increases, the emitter begins looking a little greenish.

The same effect can be observed on a higher setting, viewing the emitter through a small aperture to reduce the amount of light reaching the eye.

 

[hemdale]

Re: ZebraLight H502 X-ML

Does any of the H502 owners could post a picture of the H502 beam shot ? That would be very helpful ! Thanks ! :thumbsup:

 

[YoSeKi]

Re: ZebraLight H502 X-ML

Does any of the H502 owners could post a picture of the H502 beam shot ? That would be very helpful ! Thanks ! :thumbsup:

Several beamshots have been posted already. Go to Page 26.

 

[varuscelli]

Re: ZebraLight H502 X-ML

All right, here are a couple more shots. Evaluate however you wish.

H502 and H600 (both Cree XM-L, both 6300 Kelvin from the ZebraLight comparison chart).

First is the H502 at about one foot from a white wall.

The photo below shows the H502 (left) at about 5 inches from a white wall with an H600 (right) about a foot from the wall. H502 on high, H600 on a medium setting. Both lamps are probably closer to the wall than they'd ever be used in real situations, but I had to put them in a space with a while wall where I could get this shot...and our cramped laundry room was the only place with white walls. (The washer top was pulled out at an angle from the wall to put the H600 farther back and keep as cleanly rounded a beam as I could with both lights.)

 

[hemdale]

Re: ZebraLight H502 X-ML

Perfect ! Very helpful indeed !

 

[Bolster]

Re: ZebraLight H502 X-ML

Var, thanks for more beamshots...! We owe you. Does the camera have auto color balance, and was it on? Because to me the H502 seems to develop a green ring once the H600 is in the picture...

 

[moozooh]

Re: ZebraLight H502 X-ML

Curiously enough, H600 seems to have the same greenish tint on the rim between the hotspot and the spill. Might be the XM-L's fault after all.

 

[mobi]

Re: ZebraLight H502 X-ML

The emitter light is blue-green in side shot, distinct from GITD lime

See Canuke's post where he writes about

the tendency of some emitters to show varying tint at different angles to the emitter; in most lights, this translates to a warmer hotspot with cooler spill.

 

[varuscelli]

Re: ZebraLight H502 X-ML

Bolster: Yeah, strange. I did have the camera (in this case, just a little Canon PowerShot point and shoot)set to auto white balance and it could be that other color elements in the photo (especially the light from the H600) could be affecting the H502 beam appearance. There's only so much control I have with that camera, but it's what I had readily at hand. I should try others with a a higher-end camera with more manual controls so I can control shutter speed, aperture, ISO and white balance.

I did two more photos of just the H502 by itself. Oddly, the closer to the wall I have the H502, the more green edge there seems to be. First shot is about 6 inches from the wall, second shot about 12 inches from the wall. These photos seem almost identical to those I got the first time around, even with the H600 included in one of the shots.

By the way, I'm not a big "I like doing beam shots" kind of guy -- mostly because of inconsistencies like this where I'm not sure if it's something I failed to control, vagaries of camera interpretations or variances based on distance and surrounding scene colors, etc.

 

[tickled]

Re: ZebraLight H502 X-ML

The emitter light is blue-green in side shot, distinct from GITD lime

See Canuke's post where he writes about

In those pictures, are we sure that is an actual representation of its appearance and not a sensor/lens aberration?

 

[RedForest UK]

Re: ZebraLight H502 X-ML

It may be worth noting that the Preon P0, which uses the same lense and small GITD 'reflector' shows the same Green fringe around the beam. That uses an XP-E.

I would guess that if the green is something which the beam itself fades into near the edges then it is more likely to be due to the LED, but if it is something which is only evident after the sharp drop-off in lux at the very edge of the beam (like it is on the P0) then it is likely due to light reflecting of the GITD part.

 

[davidt1]

Re: ZebraLight H502 X-ML

I am sending my H502 back today. It acted strangely again. After being turned on for about 30 minutes it would cycle through all the modes without stopping, and turning it off was not possible without removing battery.

I would advise people to leave their H502 on for at least 30 minutes to check for this defect.

 

[mobi]

Re: ZebraLight H502 X-ML

In those pictures, are we sure that is an actual representation of its appearance and not a sensor/lens aberration?

The picture gives an idea of what is seen when looking at the emitter lens from the edge. I'm not sure at this point if the color is from a lens aberration, the emitter itself, the GITD, or something else. At first glance, it seems to be light from the emitter.

 

[lampeDépêche]

Re: ZebraLight H502 X-ML

I am sending my H502 back today. It acted strangely again. After being turned on for about 30 minutes it would cycle through all the modes without stopping, and turning it off was not possible without removing battery.

I would advise people to leave their H502 on for at least 30 minutes to check for this defect.

What mode did your light start from when it did this?

I know that I have had mine on for more than 1/2 hour in strobe mode, when I have had it on the handlebars during the day-time. No problem that way.

 

[davidt1]

Re: ZebraLight H502 X-ML

What mode did your light start from when it did this?

I know that I have had mine on for more than 1/2 hour in strobe mode, when I have had it on the handlebars during the day-time. No problem that way.

One time I started it on medium. Another time I started it on low. It gets even weirder. The light has turned itself on twice.

 

[PoliceScannerMan]

Re: ZebraLight H502 X-ML

Here in FL we are dealing with tropical storm Debby, however we welcome her rain!!

Kept my 502 in my pocket yesterday, ready for the power to go out. Sure enough while I was prepping dinner, out go the lights. I didnt miss a beat, put the headlamp on and the 502 was perfect for chopping veggies and all tasks involved getting dinner ready. Unfortunatley the power came back on 20 minutes later.

Only a flashaholic would say that.

 

[pobox1475]

I'm pretty satisfied with the spread and distribution of the light. I just want to see the D version and I'll be ready to order it!


-Alex

+1

 

[lampeDépêche]

Re: ZebraLight H502 X-ML

One time I started it on medium. Another time I started it on low. It gets even weirder. The light has turned itself on twice.

Earlier I suggested you should send it back to ZL.

Cancel that.

You should think about sending it to an exorcist, instead.

Perhaps you turned on the spiritual medium by mistake?