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slip · 03-07-2011, 07:44 PM

I am new to the metering, and I would like to put my shepard-polaris flash meter to 1/160 of a second, the same as the k10 sync speed.
the issue is that I can set the shutter speed on the flash meter to either 1/125 or 1/200 second, but not 1/160
is there a work around for this? I realize 1/125 would be fine, just wondering if 1/160 is possible some way

thanks

randy

Wheatfield · 03-07-2011, 09:07 PM

Probably not. My flash meter is a Minolta Autometer IIIF. I think it gives 1/60 and 1/125 second.
It isn't a problem.

mattdm · 03-07-2011, 09:08 PM

Not that it solves your issue, but the K10D's sync speed is 1/180th, not 1/160th.

enoeske · 03-07-2011, 09:36 PM

The flash is faster than 1/160th, it doesn't matter.

DSims · 03-07-2011, 11:11 PM

Of course, if you're just trying to get the corresponding f-stop for proper exposure, you can measure at one of those speeds and then add or subtract 1/3 stop from the reading you get, which will be correct for 1/160s. So for example, if the meter reads f/8 and 1/125s, you would set your camera to its equivalent, at f/7.1 and 1/160s.

SOldBear · 03-07-2011, 11:16 PM

Originally posted by DSims

Of course, if you're just trying to get the corresponding f-stop for proper exposure, you can measure at one of those speeds and then add or subtract 1/3 stop from the reading you get, which will be correct for 1/160s. So for example, if the meter reads f/8 and 1/125s, you would set your camera to its equivalent, at f/7.1 and 1/160s.

This is correct if you measure ambient light, but doesn't apply in flash metering.

Unless the ambient light is really bright, or the flash is really weak, I bet you the meter gives the same reading whether you set it at 1/125 or 1/160 or 1/180 or 1/200.

enoeske · 03-08-2011, 06:31 AM

Originally posted by SOldBear

I bet you the meter gives the same reading whether you set it at 1/125 or 1/160 or 1/180 or 1/200.

Yes, it certainly would...because...

Originally posted by enoeske

The flash is faster than 1/160th, it doesn't matter.

slip · 03-08-2011, 11:26 AM

Originally posted by SOldBear

This is correct if you measure ambient light, but doesn't apply in flash metering.

Unless the ambient light is really bright, or the flash is really weak, I bet you the meter gives the same reading whether you set it at 1/125 or 1/160 or 1/180 or 1/200.

my intentions (when my new cheetahstand Q 24 softbox and the Phottix Tetra Wireless Flash Trigger arrives) is to use a softbox outside and underexpose the ambient light a stop or so and use the light meter to get the correct exposure with the flash from the softbox.
will I see the second curtain if I set the exposure to 1/200 instead of 1/180?

thanks so far guys for all the help

cheers
randy

enoeske · 03-08-2011, 11:29 AM

no, unlike canon or nikon, the flash won't trigger at more than 1/180th. On canikon, they allow you to mess up your shot by shooting above the sync speed. Pentax has disabled this. 1/180th or lower only.

DSims · 03-09-2011, 03:52 PM

Originally posted by SOldBear

This is correct if you measure ambient light, but doesn't apply in flash metering.

Unless the ambient light is really bright, or the flash is really weak, I bet you the meter gives the same reading whether you set it at 1/125 or 1/160 or 1/180 or 1/200.

My mistake - I was thinking of ambient light.

03-07-2011, 07:44 PM	#1
slip Veteran Member Join Date: Oct 2006 Location: 2 hours north of toronto ontario canada Photos: Gallery \| Albums Posts: 3,535	flash meter to 1/160 sync speed I am new to the metering, and I would like to put my shepard-polaris flash meter to 1/160 of a second, the same as the k10 sync speed. the issue is that I can set the shutter speed on the flash meter to either 1/125 or 1/200 second, but not 1/160 is there a work around for this? I realize 1/125 would be fine, just wondering if 1/160 is possible some way thanks randy

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03-07-2011, 09:07 PM	#2
Wheatfield Moderator Join Date: Apr 2008 Location: The wheatfields of Canada Posts: 15,991	Probably not. My flash meter is a Minolta Autometer IIIF. I think it gives 1/60 and 1/125 second. It isn't a problem.

03-07-2011, 09:08 PM	#3
mattdm Veteran Member Join Date: Feb 2007 Location: Boston, MA Photos: Gallery Posts: 2,948	Not that it solves your issue, but the K10D's sync speed is 1/180th, not 1/160th.

03-07-2011, 09:36 PM	#4
enoeske Veteran Member Join Date: Jul 2009 Location: Surprise, Az Photos: Gallery Posts: 2,136	The flash is faster than 1/160th, it doesn't matter.

03-07-2011, 11:11 PM	#5
DSims Veteran Member Join Date: Sep 2009 Location: Southern California Photos: Gallery \| Albums Posts: 3,236	Of course, if you're just trying to get the corresponding f-stop for proper exposure, you can measure at one of those speeds and then add or subtract 1/3 stop from the reading you get, which will be correct for 1/160s. So for example, if the meter reads f/8 and 1/125s, you would set your camera to its equivalent, at f/7.1 and 1/160s.

03-07-2011, 11:16 PM	#6
SOldBear Veteran Member Join Date: Feb 2009 Location: Alameda, CA Posts: 3,206	Originally posted by DSims Of course, if you're just trying to get the corresponding f-stop for proper exposure, you can measure at one of those speeds and then add or subtract 1/3 stop from the reading you get, which will be correct for 1/160s. So for example, if the meter reads f/8 and 1/125s, you would set your camera to its equivalent, at f/7.1 and 1/160s. This is correct if you measure ambient light, but doesn't apply in flash metering. Unless the ambient light is really bright, or the flash is really weak, I bet you the meter gives the same reading whether you set it at 1/125 or 1/160 or 1/180 or 1/200.

03-08-2011, 06:31 AM	#7
enoeske Veteran Member Join Date: Jul 2009 Location: Surprise, Az Photos: Gallery Posts: 2,136	Originally posted by SOldBear I bet you the meter gives the same reading whether you set it at 1/125 or 1/160 or 1/180 or 1/200. Yes, it certainly would...because... Originally posted by enoeske The flash is faster than 1/160th, it doesn't matter.

03-08-2011, 11:26 AM	#8
slip Veteran Member Join Date: Oct 2006 Location: 2 hours north of toronto ontario canada Photos: Gallery \| Albums Posts: 3,535 Original Poster	Originally posted by SOldBear This is correct if you measure ambient light, but doesn't apply in flash metering. Unless the ambient light is really bright, or the flash is really weak, I bet you the meter gives the same reading whether you set it at 1/125 or 1/160 or 1/180 or 1/200. my intentions (when my new cheetahstand Q 24 softbox and the Phottix Tetra Wireless Flash Trigger arrives) is to use a softbox outside and underexpose the ambient light a stop or so and use the light meter to get the correct exposure with the flash from the softbox. will I see the second curtain if I set the exposure to 1/200 instead of 1/180? thanks so far guys for all the help cheers randy

03-08-2011, 11:29 AM	#9
enoeske Veteran Member Join Date: Jul 2009 Location: Surprise, Az Photos: Gallery Posts: 2,136	no, unlike canon or nikon, the flash won't trigger at more than 1/180th. On canikon, they allow you to mess up your shot by shooting above the sync speed. Pentax has disabled this. 1/180th or lower only.

03-09-2011, 03:52 PM	#10
DSims Veteran Member Join Date: Sep 2009 Location: Southern California Photos: Gallery \| Albums Posts: 3,236	Originally posted by SOldBear This is correct if you measure ambient light, but doesn't apply in flash metering. Unless the ambient light is really bright, or the flash is really weak, I bet you the meter gives the same reading whether you set it at 1/125 or 1/160 or 1/180 or 1/200. My mistake - I was thinking of ambient light.

flash meter to 1/160 sync speed

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