Recent content by Myszolow

The copper spiral is a different component. After I desoldered the cap it looks fine. I'm all confused now and think it's almost time to give up.

Don't know how old mine is. Only had it since March 2009. It's got firmware V2.00 though. When I say 8 gig works, it shows as having less available capacity than 4 gig. 4 gig card fits ~400 RAW images whereas the 8 gig shows 350 left when empty. I guess I'll be using the 8 gig for a memory...

Funnily enough I recently bought an 8Gig Kingston 133 card for my D100 and noticed it doesn't quite work the same as the 4Gb Kingston 133. I don't think the camera can cope with more than 4 Gigs. I shoot RAW and then process on a computer. So the processor is taken right out of the process. :)

Well I desoldered the capacitor and put it on the multimeter to measure resistance. It climbed gradually over a period of about 4 minutes, reached infinity and stayed there. So I guess it's not the cap. That's bad news really because we're getting past the extent of my electronics skills now. :'(

Yeah, I'm curious about that too? :)

OK - thanks I'll do that and test again. The reason I think it's the cap is the way it let go in the first place. If it was the transformer, would the flash have flashed when I hadn't told it to? (on half press for focussing - no exposure).

No, doesn't have that mode, but I found a site that showed what to do and it looks as if the main cap is faulty as it starts off with low resistance and only climbs up to about 86 k and won't go any higher. Seems to be leaky. This is what it looks like (sorry, embedding didn't work)...

Yeah, cutting losses is certainly an option, but I don't have the budget for a new one at the moment or I would have splashed out £280 on the Sigma macro flash in the first place. I think I'd be better off trying to fix it than let it go for a pittance.

Thanks David. I have looked inside, but even though I have a multimeter which can do resistance measurement, I'm not quite sure how to test a capacitor. Also the main capacitor has a funny copper spiral at the base of it, which looks unlike any capacitor I've ever seen before. Would that be a...

Hi guys, I have a Nikon SB-21 macro flash that I bought second-hand. It worked a treat with my D100 when I got it, but last week I went to use it and on half-pressing the shutter release button to get autofocus, the flash made a popping/crackling sound and fired - without the shutter being...

Did you buy this John B? If so, have you had enough of it yet? My SB21 died last week and I'm looking to replace it. Do you have one to sell? Alex