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Topics - johnf3f

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Lighting / Yongnuo YN-568EX II TT
« on: July 08, 2013, 07:09:42 PM »
Does anybody know if this flash is compatible with external battery packs and if so which ones.
I believe the Mk1 is not but I am having trouble finding out about the Mk2.
Thanks for your help.
I would also any other opinions you may have on this flash gun.

Lighting / Is my 430EX dead?
« on: July 02, 2013, 09:55:32 PM »
I was out earlier taking some pics and my 430 EX flash just stopped working! I was using it in manual mode at 1/4 power to help freeze the movement on some Dragonflies I was photographing. However after about 6 or 7 exposures it just would not flash. I have tried 3 sets of batteries with no joy. It seems to power up OK and the red "Pilot" light quickly shows it is ready but then it will not fire on or off the camera, even pressing the "Pilot" button will not trigger it in Manual or ETTL mode. If I put my ear next to the flash gun I can hear a VERY faint beeping at a rate of about 1 beep per second.
Has anybody out there any idea of what might be wrong? Although not a new flash it has been very rarely used so I wouldn't have thought it would be the tube - but I have virtually no idea on flash guns so any advice would be appreciated.

Lenses / 600mm Lens serial number
« on: November 17, 2012, 06:15:13 PM »
I am looking at a Canon 600 mm lens on a certain auction site. I have sent a message to the vendor and his/her reply makes me think it is a bit dodgy. They quote the serial number as 20224. Is there anywhere I can check this is, at least, possibly valid?
I am not trying to buy the lens as I already have one, but I am trying to stop someone getting ripped off!

Lenses / Rationalise my kit!
« on: October 28, 2012, 07:35:25 PM »
Advice required!
 I have some money to spend on gear and am looking to improve my lenses at the short/wide angle range. My current shortish lenses are a Canon 17-40, Canon 24-105, Canon 28mm F2.8 and a Contax-Zeiss 25mm F2.8. I am happy with the 24-105 and the 25mm Contax but am thinking of selling the 28mm and 17-40 to help fund a Nikon 14-24 F2.8. I realise this lens will be entirely manual  but that is not an issue to me.
My cameras are a 5d Mk1 and a 1D Mk4, I would be interested in any suggestions for example should I change the 5D for a Mk2 or are there other lenses that might suit?

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