Why does the sb 900 overheat

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Submit a News Tip! Reading mode: Light Dark. Login Register. Best cameras and lenses. Started Oct 15, Discussions. Oct 15, Hello All, I am totally sick of my SB cutting out due to overheating but can't afford to go with the Kind regards Leo. Reply to thread Reply with quote Complain. Kiwi22 wrote: Hello All, I am totally sick of my SB cutting out due to overheating but can't afford to go with the Kind regards Leo Machine gunning with any flash will fry the flash.

Nikon Z7. Reply Reply with quote Reply to thread Complain. Here's a previous thread Greg Norrell's gear list: Greg Norrell's gear list. Wanchese's gear list: Wanchese's gear list. Yes, 20 rechargeable batteries seems like a lot, but it is a wise investment if you want to do this right Visit flashzebra.

GBJ, thank you for your detailed response. Thank you. Zvonko's gear list: Zvonko's gear list. Leo www. Good luck e good photos allways. Thanks for your help. F Forum M My threads. You may also like. The top 10 most popular cameras of according to our Instagram. Nikon D6: initial sample images. Nikon confirms first D6 units will ship out by end of May, after a brief delay.

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Nikon Z9 initial review. Sony a7 IV initial review. Nikon Nikkor Z mm F2. Sigma mm F Discover more challenges ». Nikon Z9 4. Popular interchangable lens cameras ». Popular compact cameras ». Shedding some light on the sources of noise. Mobile site. Reproduction in whole or part in any form or medium without specific written permission is prohibited. Threaded view. The top 10 most popular cameras of according to our Instagram Dec 31, Nikon D6: initial sample images Aug 3, Nikon confirms first D6 units will ship out by end of May, after a brief delay May 7, This is when they are dialled down to minus 2 stops and outdoors fill.

Only for short nursts of 2 or 3 , then 2 or three more a few seconds later. SB has three temperature fuses. For pro use I would suggest using alk's in the unit and power it externally via sd-9 or equivalent. I've heard that SB "overheats" much quicker with rechargeable batteries. My sb would overheat whereas in the same shooting environment I never had a problem with my sb The sbs cool down pretty fast if you crack the battery cover and let them sit for few minutes.

Edited by ac12basis member 11 years ago. ECP Just how were you shooting; how much, how often, how much time between shots, etc? What you think as not shooting too much, could be beyond the duty cycle specs of the flash. If the flash has to recharge an essentially drained capacitor, it will be pulling a LOT of current from the batteries, photoj79 That is because as I understand it, the SB does not have a thermal disconnect.

The basic issue is heat dissipation, or specifically the lack of it. The plastic case of the flash is an excellent insulator. But in this case, it keeps the heat that is generated INSIDE the flash rather than dissipating the heat to the external air. UL and other safety and law suit concerns for a consumer flash limit what can be done. You also need the vents located such that the air will vent the hot air OUT. Holes in the wrong place will do little if anything to dissipate the heat.

Heat transfer methods will add complexity and cost to the flash. If there is a component failure, the metal heat sink could become "live" with electricity and shock the users. That depends on what you define as a PRO flash.

It is NOT a high duty cycle flash. Here are some of the things that high duty cycle flashes do to get that high duty cycle, and they are all "bad things" for something aimed at consumers. When Nikon SB Speedlight was released, it was claimed to be the utmost strobe around, even by the utmost and fierce competitors.

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Learn how your comment data is processed. Skip to content. Nikon SB vs SB overheating issues.