Re: MX hot-shoe and X-sync

2002-01-02 Thread Johan Schoone

[EMAIL PROTECTED] wrote:
 Hey guys.  I noticed a lot of MX's are advertised on eBay with non-funtioning
 X-syncs and hot-shoes.  My MX suffers the same problem although the FP sync will 
fire the flash.
 Is this a common problem for MX's?  Is it repairable?  what shutter speeds does FP 
sync at?

My guess is that the FP socket is used in combination with flash bulbs.
Bulbs need some time to ignite and burn quite long, compared to the
duration of an electronic flash.

That would mean that you could use any shutter speed with flash (bulbs only).
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RE: MX hot-shoe and X-sync

2002-01-02 Thread Paris, Leonard

It will sync at all shutter speeds, if you use FP class flash bulbs.  That's
what FP sync is for.

Len
---

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, January 02, 2002 10:23 AM
To: [EMAIL PROTECTED]
Subject: MX hot-shoe and X-sync


Hey guys.  I noticed a lot of MX's are advertised on eBay with
non-funtioning
X-syncs and hot-shoes.  My MX suffers the same problem although the FP sync
will fire the flash.
Is this a common problem for MX's?  Is it repairable?  what shutter speeds
does FP sync at?

Thanks as always
Christian
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RE: MX hot-shoe and X-sync

2002-01-02 Thread Collin Brendemuehl

I've seen it happen to many a MX.  Seems to be (frequently, anyway) a loose wire or 
cold solder joint.  There may be other causes as well.  This one is fixable.

Focal Plane sync is designed optimally for #6 bulbs.  There's a minimal, but 
apparently real, difference between the variant flash bulb syncs and bulb types.  
Pentax, as far as I can tell, always used FP sync.
Other cameras, including my son's Rolleiflex 2.8C and my LF shutter, identify the sync 
as M, which would be for #5 bulbs.

Isn't history fascinating?  :)

Collin


Date: Wed, 2 Jan 2002 12:39:25 -0600 
From: Paris, Leonard [EMAIL PROTECTED] 
Subject: RE: MX hot-shoe and X-sync 

It will sync at all shutter speeds, if you use FP class flash bulbs.  That's 
what FP sync is for. 

Len 
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Re: MX hot-shoe and X-sync

2002-01-02 Thread Pat White

I don't believe it will sync with an electronic flash, as the FP socket has a
short built-in delay to allow the flashbulb to reach full brightness.  But
what the heck, try a slow speed and see what happens.

Pat White
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Re: MX hot-shoe and x-sync

2002-01-02 Thread Pat White

Actually, I should have said: using the FP socket causes the shutter opening
to delay after triggering the flash, to allow the bulb to reach full
brightness.

Pat White
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Re: MX hot-shoe and X-sync

2002-01-02 Thread wendy beard

MX #1's hot shoe has gone cold and the X-synch is decidedly tepid (blows 
hot  cold). I just put it down to it being dropped on its head as a baby.

When I bought MX #2 I made sure I asked the salesman to check that the 
hotshoe worked
Wendy

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Wendy Beard
Ottawa, Canada
http://www.beard-redfern.com
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