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  #1  
Old 23rd December 2013, 04:18 PM
BlackMo BlackMo is offline
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Default what is short-peak lamps ?

I am not sure about the short-peak lamps, is there someone can show me the picutres and tell me what is that ???
Appreciate a lot
Marry Christmas
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Old 23rd December 2013, 04:27 PM
Mike O'Pray Mike O'Pray is offline
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Hi Mo, it may be that someone here will know the answer but it may help if you tell us what piece of equipment uses these short peak lamps

I haven't heard of these and I have been doing darkroom work for nearly 10 years.

Mike
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Old 23rd December 2013, 05:57 PM
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vanannan vanannan is offline
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Quote:
Originally Posted by BlackMo View Post
I am not sure about the short-peak lamps, is there someone can show me the picutres and tell me what is that ???
Appreciate a lot
Marry Christmas
As far as I know short peak is a term used to describe a type of flashbulb meaning that the maximum light output of the bulb occurs for a shorter length of time than a long peak, long peak flashbulbs have a higher output given that the shutter is open long enough to utilise it, follow links below for more info.

http://www.flashbulbs.com/index.shtml

http://www.graflex.org/flash/technical.html

Best wishes

Merry Xmas
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Old 23rd December 2013, 06:33 PM
BlackMo BlackMo is offline
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Hi Mike ,how ar u? When I read the leica M5 instruction book they said that "X synchro contact for electronic- flash and short-peak lamps" I am confused with this , I don't know what is the meaning of short-peak lamp here.
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Old 23rd December 2013, 06:50 PM
BlackMo BlackMo is offline
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Can I consider that short-peak is a flash bulb?
Quote:
Originally Posted by vanannan View Post
As far as I know short peak is a term used to describe a type of flashbulb meaning that the maximum light output of the bulb occurs for a shorter length of time than a long peak, long peak flashbulbs have a higher output given that the shutter is open long enough to utilise it, follow links below for more info.

http://www.flashbulbs.com/index.shtml

http://www.graflex.org/flash/technical.html

Best wishes

Merry Xmas
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Old 23rd December 2013, 07:11 PM
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vanannan vanannan is offline
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Quote:
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Can I consider that short-peak is a flash bulb?
Yes, X synchro is generally used for electronic flash but can be used with short peak flash bulbs, it is explained better than I can here :-

http://en.wikipedia.org/wiki/Flash_synchronization

Regards
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Old 23rd December 2013, 07:20 PM
BlackMo BlackMo is offline
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Thank you very much and wish you all the best
Marry Christmas
Quote:
Originally Posted by vanannan View Post
Yes, X synchro is generally used for electronic flash but can be used with short peak flash bulbs, it is explained better than I can here :-

http://en.wikipedia.org/wiki/Flash_synchronization

Regards
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Old 23rd December 2013, 08:14 PM
Mike O'Pray Mike O'Pray is offline
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Good, it looks like Vannanan has answered the question for you, Mo. I must admit I never think of flash bulbs these days but there were quite common until probably the mid to late 1970s which is quite recently at my age.

Mike
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