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02-13-2011, 07:23 AM   #1
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Lock/unlock the Pentax flash AF-540fgz

Hi,

I have a Pentax AF-540fgz flash. I've noticed that the lock/unlock button doesn't work for the "cobra" mode. It seems that it is only for the -10 angle rotation. Is it normal?

Regards.

Malsi

02-13-2011, 08:16 AM   #2
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Page 55 of the user manual implies that it's normal as there is no similar reference to the use of the lock button for tilting the head up.
QuoteQuote:
Hold the bounce lock release button and tilt the flash head downward when you set the bounce angle at -10.
And if it's any comfort, mine behaves the same
02-15-2011, 01:08 PM   #3
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02-15-2011, 01:30 PM   #4
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It's normal. The head of the Pentax 540 has no lock, except for the -10 position.

My Nikon SB-25 and SB-26 have head lock. I don't like it.

But I wish the detent on the Pentax flash head were more positive. I like the head of the Sunpak 383, no lock, with very positive detent settings.

02-17-2011, 05:20 AM   #5
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QuoteOriginally posted by SOldBear Quote
It's normal. The head of the Pentax 540 has no lock, except for the -10 position.

My Nikon SB-25 and SB-26 have head lock. I don't like it.

But I wish the detent on the Pentax flash head were more positive. I like the head of the Sunpak 383, no lock, with very positive detent settings.
Hi,

Thank you for your answer . I also prefer without the lock button (like K10D-20D vs. K-7/K-5)

In fact, a friend told me that he has a problem with the 540fgz. When he tries to use a Lambency diffuser, because of the weight, the "cobra" part falls. So it is very difficult for him to use it in a cobra mode.

Regards.

Malsi


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