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		| rdhanes 
 
 
 Joined: 03 Aug 2001
 Posts: 1
 Location: Oklahoma USA
 
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				|  Posted: Fri Aug 03, 2001 5:25 pm    Post subject: |   |  
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				| what is the chrome metal button on the top of the shutter housing used for? Ive identified shutter cocking lever and the shutter realease and flash sync delay lever as well as the flash terminals. This is about a quarter inch in diameter button. |  | 
	
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		| Les 
 
 
 Joined: 09 May 2001
 Posts: 2682
 Location: Detroit, MI
 
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				|  Posted: Fri Aug 03, 2001 5:59 pm    Post subject: |   |  
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				| It's referred to as a Press focus button.  Cock the shutter, press the button and simultaneously trip the shutter. The shutter get caught in mid exposure. Now you can ground glass focus, then cock the shutter to close it. 
 This way you don't have to change the shutter speed to open the lens.
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