Author Topic: 7D and maxxum 3500xi flash  (Read 4990 times)

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7D and maxxum 3500xi flash
« on: October 31, 2005, 07:13:05 PM »
I bought my Maxxum 7D about two weeks ago. It works good, but not with my maxxum 3500xi flash. All my shots are totally over exposed, littery I get a blank (white) screen. Also, the wireless, althoug it shows on, it does not work. Obviosly the flash is not compatible.  With some major adjusments I got better resoults but nothing for practical use. Is there any way I can make this work or is my flash scrap?

Offline Stäck

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7D and maxxum 3500xi flash
« Reply #1 on: October 31, 2005, 08:35:31 PM »
Not that I know of. I have the same flash, and it doesn't work at all with the 7D. The measurement systems are incompatible (flash control with film and digital are completely different), so the flash just fires full-burst all the time (which usually is way too much). The only way I know of to use it at all is to set the camera in M mode, and lower ISO and aperture until you get a decent exposure.

Offline Clive

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7D and maxxum 3500xi flash
« Reply #2 on: December 27, 2005, 03:20:48 PM »
Guest: I have a 5200i flash that is 15 years old. It will fire on the 7D but can effectively only be used on M mode. This is no good for "fast action" images where you must ave fast exposure controls. However, if you have time it works reasonably well. Two weeks ago, I used the 5200i on the 7D at an anniversary party. For controlled shooting it was fine. The speed was set at 1/60 or 1/125 and all I had to do was change the aperture between 5.6 and 11 (as I recall) depending on distance. I took lots of shots of people speaking from a podium, so distances were within a narrow range. I had time to take several images anyway, so could make minor adjustments in aperture to get the correct exposures.

I used the 5200i two weeks ago to take closeup "studio" shots of barley seeds. Using the flash's exposure ratio controller and a white foam diffuser, it worked well.

My 7D came with a 2500 flash and it is useless. Why they shipped it with the camera I'll never know. I am trying to get a credit from the Canadian agent for KM. If they cooperate, I will perhaps get a new digital compatible 3600 flash.
Not everything that counts can be counted, and not everything that can be counted, counts. Albert Einstein