V850 and heat protection mode -- Flash and Studio Lighting in photography-on-the.net forums

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Dec 09, 2014 09:14 | #1

I have 4 of these. I was doing some battery tests and noticed that one of them doesn't kick into protection mode until I hit 30 pops. All the others kick in after 20. Anyone else experience this?

Canon 5Dm3, Fuji X100T, Fuji X-T1, Fuji X70
Canon 70-200mm L F/2.8 IS
Canon 24-105mm L F/4.0 IS
Sigma 35mm F/1.4, Sigma 85mm F/1.4
Fuji 16mm F/1.4, Fuji 35mm F/1.4, Fuji 56mm F/1.2, Fuji 16-55 F/2.8

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adammazza
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Dec 14, 2014 13:22 | #2

Just to follow up on this. The flash blew today. sparked and then displayed E3. Getting it replaced.

Canon 5Dm3, Fuji X100T, Fuji X-T1, Fuji X70
Canon 70-200mm L F/2.8 IS
Canon 24-105mm L F/4.0 IS
Sigma 35mm F/1.4, Sigma 85mm F/1.4
Fuji 16mm F/1.4, Fuji 35mm F/1.4, Fuji 56mm F/1.2, Fuji 16-55 F/2.8

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bhursey

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Dec 14, 2014 13:50 as a reply to @ adammazza's post | #3

Sounds like you blew the tube... Always be careful testing full pops..

Cameras: Canon 60D and 20D
Canon EF lens used : 50mm f1.8, 18-55mm f/3.5-5.5, 75-300mm f/4.5-5, 85mm f/1.8, 28-75mm F/2.8 XR Di LD Aspherical (IF)Strobist: Canon 580EX II , 2X YN-568EX, Nikon SB-24, LP-160, Pixel Mago, 4x Cactus RF60 , Voeloon V760 and 331EX, 4x YN622C and (cactus v4, v5, V6)"
http://flickr.com/photos/bhursey | http://brianhurseyphotography.com

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adammazza
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Dec 14, 2014 15:32 | #4

Yep, that was my point with the original post. The 850 should cutoff at 20. For some reason this was letting it go to 30. This is a v850 from CheetahLight, getting an RMA number was no problem. Ed's great like that.

Canon 5Dm3, Fuji X100T, Fuji X-T1, Fuji X70
Canon 70-200mm L F/2.8 IS
Canon 24-105mm L F/4.0 IS
Sigma 35mm F/1.4, Sigma 85mm F/1.4
Fuji 16mm F/1.4, Fuji 35mm F/1.4, Fuji 56mm F/1.2, Fuji 16-55 F/2.8

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bhursey

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Dec 14, 2014 16:09 as a reply to @ adammazza's post | #5

Yah anything above 20 decreases the life of the tube it seems.. That seems about the average range I have seen.. The Cactus RF60 is the following however it exactly matches the V850 spec....

20 shots at 1/1 power
30 shots at 1/2 + 0.7
40 shots at 1/2 + 0.3
60 shots at 1/2

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adammazza
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Dec 14, 2014 18:57 | #6

I have 4 v850s, this was the only one that did't go into protection mode at 20 pops.

Canon 5Dm3, Fuji X100T, Fuji X-T1, Fuji X70
Canon 70-200mm L F/2.8 IS
Canon 24-105mm L F/4.0 IS
Sigma 35mm F/1.4, Sigma 85mm F/1.4
Fuji 16mm F/1.4, Fuji 35mm F/1.4, Fuji 56mm F/1.2, Fuji 16-55 F/2.8

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