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Charles1 · 09-02-2008, 11:45 AM

I own a istDS and a new Vivitar 285hv. Is there any way of getting around the 180 sync speed of the camera ? Thanks... Charles

bigben91682 · 09-02-2008, 01:35 PM

I think the only way around it is to buy a different camera that isn't pentax....

that sync speed is one of my (very few) gripes with the pentax DSLR's, 1/250 would be nice, just like the rest of the gang...

Russell-Evans · 09-02-2008, 01:49 PM

Originally posted by Charles1

I own a istDS and a new Vivitar 285hv. Is there any way of getting around the 180 sync speed of the camera ? Thanks... Charles

I'm not sure what you are trying, but you might find this is an interesting read.

Thank you
Russell

**ChipB** · 09-07-2008, 12:27 PM

Originally posted by Charles1

I own a istDS and a new Vivitar 285hv. Is there any way of getting around the 180 sync speed of the camera ? Thanks... Charles

Charles, you don't specifically say you want a faster shutter speed - can't have it - 180 is max - BUT, you can certainly have a slower shutter speed!!

marlon · 09-07-2008, 03:15 PM

There are too many people who want faster Sync speeds withotu knowing why they want it. Seriously, a fast external flash will give you a fast sync by merely flashing multiple times during the curtains opening/closing period. Why would you want a higher speed? They can take popup flashes off dslrs for all I care. It's a bonus feature, use it or dont

Deni · 09-08-2008, 01:52 AM

High speed sync in flash photography is not used only to stop the action but also limit the light entering the camera.

Let's say you're shooting at the beach an the sun is high behind your subject. You need the flash to fill the subject, but one you decide to fire the flash you have to use 1/180s or slower, thus having to use smaller aperture, but I want to keep a thin DOF. What do I do?

Russell-Evans · 09-08-2008, 04:11 AM

Originally posted by Deni

Let's say you're shooting at the beach an the sun is high behind your subject. You need the flash to fill the subject, but one you decide to fire the flash you have to use 1/180s or slower, thus having to use smaller aperture, but I want to keep a thin DOF. What do I do?

Polarizer, ND filter, or use HSS with an external flash. Do you have an external flash that supports HSS?

Thank you
Russell

Deni · 09-08-2008, 04:55 AM

Originally posted by Russell-Evans

Polarizer, ND filter, or use HSS with an external flash. Do you have an external flash that supports HSS?

Thank you
Russell

Does the k100d support hss? If a p&s can use it's flash at 1/600s why can't a dslr?

An example:

Russell-Evans · 09-08-2008, 05:16 AM

Originally posted by Deni

Does the k100d support hss? If a p&s can use it's flash at 1/600s why can't a dslr?

The K100D supports HSS with an external flash that has tHSS support.

I don't know why a fixed lens camera can use its flash at 1/600, but I would guess it is partly because of size of the sensor and thus the size of the shutter or maybe that the fix lens camera has an electronic shutter.

Thank you
Russell

09-02-2008, 11:45 AM	#1
Charles1 Junior Member Join Date: Aug 2008 Location: Massachusetts Photos: Gallery Posts: 28	Flash Sync I own a istDS and a new Vivitar 285hv. Is there any way of getting around the 180 sync speed of the camera ? Thanks... Charles

09-08-2008, 04:55 AM	#8
Deni Veteran Member Join Date: May 2007 Location: Tirana, Albania, South Europe, Planet Earth Photos: Gallery \| Albums Posts: 621	Originally posted by Russell-Evans Polarizer, ND filter, or use HSS with an external flash. Do you have an external flash that supports HSS? Thank you Russell Does the k100d support hss? If a p&s can use it's flash at 1/600s why can't a dslr? An example: Last edited by Deni; 09-08-2008 at 05:03 AM.

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09-02-2008, 01:35 PM	#2
bigben91682 Inactive Account Join Date: Jan 2008 Location: Upstate NY Posts: 728	I think the only way around it is to buy a different camera that isn't pentax.... that sync speed is one of my (very few) gripes with the pentax DSLR's, 1/250 would be nice, just like the rest of the gang...

09-02-2008, 01:49 PM	#3
Russell-Evans Veteran Member Join Date: Nov 2007 Posts: 1,553	Originally posted by Charles1 I own a istDS and a new Vivitar 285hv. Is there any way of getting around the 180 sync speed of the camera ? Thanks... Charles I'm not sure what you are trying, but you might find this is an interesting read. Thank you Russell

09-07-2008, 12:27 PM	#4
ChipB Site Supporter Join Date: Nov 2007 Location: Eau Claire, WI Photos: Gallery \| Albums Posts: 2,717	Originally posted by Charles1 I own a istDS and a new Vivitar 285hv. Is there any way of getting around the 180 sync speed of the camera ? Thanks... Charles Charles, you don't specifically say you want a faster shutter speed - can't have it - 180 is max - BUT, you can certainly have a slower shutter speed!!

09-07-2008, 03:15 PM	#5
marlon Inactive Account Join Date: Aug 2008 Location: Cape Town, South Africa Posts: 232	There are too many people who want faster Sync speeds withotu knowing why they want it. Seriously, a fast external flash will give you a fast sync by merely flashing multiple times during the curtains opening/closing period. Why would you want a higher speed? They can take popup flashes off dslrs for all I care. It's a bonus feature, use it or dont

09-08-2008, 01:52 AM	#6
Deni Veteran Member Join Date: May 2007 Location: Tirana, Albania, South Europe, Planet Earth Photos: Gallery \| Albums Posts: 621	High speed sync in flash photography is not used only to stop the action but also limit the light entering the camera. Let's say you're shooting at the beach an the sun is high behind your subject. You need the flash to fill the subject, but one you decide to fire the flash you have to use 1/180s or slower, thus having to use smaller aperture, but I want to keep a thin DOF. What do I do?

09-08-2008, 04:11 AM	#7
Russell-Evans Veteran Member Join Date: Nov 2007 Posts: 1,553	Originally posted by Deni Let's say you're shooting at the beach an the sun is high behind your subject. You need the flash to fill the subject, but one you decide to fire the flash you have to use 1/180s or slower, thus having to use smaller aperture, but I want to keep a thin DOF. What do I do? Polarizer, ND filter, or use HSS with an external flash. Do you have an external flash that supports HSS? Thank you Russell

09-08-2008, 05:16 AM	#9
Russell-Evans Veteran Member Join Date: Nov 2007 Posts: 1,553	Originally posted by Deni Does the k100d support hss? If a p&s can use it's flash at 1/600s why can't a dslr? The K100D supports HSS with an external flash that has tHSS support. I don't know why a fixed lens camera can use its flash at 1/600, but I would guess it is partly because of size of the sensor and thus the size of the shutter or maybe that the fix lens camera has an electronic shutter. Thank you Russell

Flash Sync

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