Comments on: Using your flash’s guide number http://cameradojo.com/2008/07/19/using-your-flash%e2%80%99s-guide-number/ Helping you make the most out of your photography Wed, 03 Mar 2010 05:09:15 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Pierre http://cameradojo.com/2008/07/19/using-your-flash%e2%80%99s-guide-number/comment-page-1/#comment-2569 Pierre Thu, 18 Sep 2008 14:53:36 +0000 http://cameradojo.com/?p=585#comment-2569 Sorry, I understand... it's the metter's convertion ( : Sorry, I understand… it's the metter's convertion ( :

]]> By: Pierre http://cameradojo.com/2008/07/19/using-your-flash%e2%80%99s-guide-number/comment-page-1/#comment-2568 Pierre Thu, 18 Sep 2008 14:46:08 +0000 http://cameradojo.com/?p=585#comment-2568 Hello, <br>Thank you for this tutorial. <br>But there is something that I do not understand. <br>With a Canon 580exII, I have to use 190 or 58 NG in the Calculation Spreadsheet? <br>I do not understand the 190 number if the number of guide 580exII is 58? <br><br>Thank you for your reply (I don't speak English very well) Hello,
Thank you for this tutorial.
But there is something that I do not understand.
With a Canon 580exII, I have to use 190 or 58 NG in the Calculation Spreadsheet?
I do not understand the 190 number if the number of guide 580exII is 58?

Thank you for your reply (I don't speak English very well)

]]> By: Pierre http://cameradojo.com/2008/07/19/using-your-flash%e2%80%99s-guide-number/comment-page-1/#comment-565 Pierre Thu, 18 Sep 2008 08:53:36 +0000 http://cameradojo.com/?p=585#comment-565 Sorry, I understand... it's the metter's convertion ( : Sorry, I understand… it's the metter's convertion ( :

]]> By: Pierre http://cameradojo.com/2008/07/19/using-your-flash%e2%80%99s-guide-number/comment-page-1/#comment-564 Pierre Thu, 18 Sep 2008 08:46:08 +0000 http://cameradojo.com/?p=585#comment-564 Hello, <br>Thank you for this tutorial. <br>But there is something that I do not understand. <br>With a Canon 580exII, I have to use 190 or 58 NG in the Calculation Spreadsheet? <br>I do not understand the 190 number if the number of guide 580exII is 58? <br><br>Thank you for your reply (I don't speak English very well) Hello,
Thank you for this tutorial.
But there is something that I do not understand.
With a Canon 580exII, I have to use 190 or 58 NG in the Calculation Spreadsheet?
I do not understand the 190 number if the number of guide 580exII is 58?

Thank you for your reply (I don't speak English very well)

]]> By: Anonymous http://cameradojo.com/2008/07/19/using-your-flash%e2%80%99s-guide-number/comment-page-1/#comment-1012 Anonymous Thu, 18 Sep 2008 03:53:36 +0000 http://cameradojo.com/?p=585#comment-1012 Sorry, I understand... it's the metter's convertion ( : Sorry, I understand… it's the metter's convertion ( :

]]> By: Anonymous http://cameradojo.com/2008/07/19/using-your-flash%e2%80%99s-guide-number/comment-page-1/#comment-1011 Anonymous Thu, 18 Sep 2008 03:46:08 +0000 http://cameradojo.com/?p=585#comment-1011 Hello, <br></br>Thank you for this tutorial. <br></br>But there is something that I do not understand. <br></br>With a Canon 580exII, I have to use 190 or 58 NG in the Calculation Spreadsheet? <br></br>I do not understand the 190 number if the number of guide 580exII is 58? <br></br><br></br>Thank you for your reply (I don't speak English very well) Hello,
Thank you for this tutorial.
But there is something that I do not understand.
With a Canon 580exII, I have to use 190 or 58 NG in the Calculation Spreadsheet?
I do not understand the 190 number if the number of guide 580exII is 58?

Thank you for your reply (I don't speak English very well)

]]> By: Tyler G. Hicks-Wright http://cameradojo.com/2008/07/19/using-your-flash%e2%80%99s-guide-number/comment-page-1/#comment-533 Tyler G. Hicks-Wright Tue, 02 Sep 2008 03:12:59 +0000 http://cameradojo.com/?p=585#comment-533 Kerry,<br><br>I'm gonna call you out again. ISO multipliers follow the inverse square law, just like apertures, so the table should read:<br><br>100 - 1.0<br>200 - 1.4<br>400 - 2.0<br>800 - 2.8<br>1600 - 4.0<br>3200 - 5.6<br>6400 - 8.0<br>12800 - 11.0 (Only for D3 owners...)<br>25600 - 16.0<br><br>Seems much easier to remember, since that same scale is written on my lens and programmed into my camera, and it's correct! Of course, it's not exact, ISO 200's multiplier should really be 1.41421356... but it's close enough.<br><br>Best,<br>Tyler Kerry,

I'm gonna call you out again. ISO multipliers follow the inverse square law, just like apertures, so the table should read:

100 – 1.0
200 – 1.4
400 – 2.0
800 – 2.8
1600 – 4.0
3200 – 5.6
6400 – 8.0
12800 – 11.0 (Only for D3 owners…)
25600 – 16.0

Seems much easier to remember, since that same scale is written on my lens and programmed into my camera, and it's correct! Of course, it's not exact, ISO 200's multiplier should really be 1.41421356… but it's close enough.

Best,
Tyler

]]> By: Anonymous http://cameradojo.com/2008/07/19/using-your-flash%e2%80%99s-guide-number/comment-page-1/#comment-1010 Anonymous Mon, 01 Sep 2008 22:12:59 +0000 http://cameradojo.com/?p=585#comment-1010 Kerry,<br></br><br></br>I'm gonna call you out again. ISO multipliers follow the inverse square law, just like apertures, so the table should read:<br></br><br></br>100 - 1.0<br></br>200 - 1.4<br></br>400 - 2.0<br></br>800 - 2.8<br></br>1600 - 4.0<br></br>3200 - 5.6<br></br>6400 - 8.0<br></br>12800 - 11.0 (Only for D3 owners...)<br></br>25600 - 16.0<br></br><br></br>Seems much easier to remember, since that same scale is written on my lens and programmed into my camera, and it's correct! Of course, it's not exact, ISO 200's multiplier should really be 1.41421356... but it's close enough.<br></br><br></br>Best,<br></br>Tyler Kerry,

I'm gonna call you out again. ISO multipliers follow the inverse square law, just like apertures, so the table should read:

100 – 1.0
200 – 1.4
400 – 2.0
800 – 2.8
1600 – 4.0
3200 – 5.6
6400 – 8.0
12800 – 11.0 (Only for D3 owners…)
25600 – 16.0

Seems much easier to remember, since that same scale is written on my lens and programmed into my camera, and it's correct! Of course, it's not exact, ISO 200's multiplier should really be 1.41421356… but it's close enough.

Best,
Tyler

]]> By: Jason D. Moore Photography » Blog Archive » P&P Weekly: #86 http://cameradojo.com/2008/07/19/using-your-flash%e2%80%99s-guide-number/comment-page-1/#comment-398 Jason D. Moore Photography » Blog Archive » P&P Weekly: #86 Mon, 21 Jul 2008 11:02:42 +0000 http://cameradojo.com/?p=585#comment-398 [...] Kerry of Camera Dojo - “Using your flash’s guide number“ [...] [...] Kerry of Camera Dojo – “Using your flash’s guide number“ [...]

]]> By: Anonymous http://cameradojo.com/2008/07/19/using-your-flash%e2%80%99s-guide-number/comment-page-1/#comment-1007 Anonymous Mon, 21 Jul 2008 03:02:42 +0000 http://cameradojo.com/?p=585#comment-1007 [...] Kerry of Camera Dojo - ?Using your flash?s guide number? [...] [...] Kerry of Camera Dojo – ?Using your flash?s guide number? [...]

]]> By: photographyVoter.com http://cameradojo.com/2008/07/19/using-your-flash%e2%80%99s-guide-number/comment-page-1/#comment-395 photographyVoter.com Sun, 20 Jul 2008 19:39:43 +0000 http://cameradojo.com/?p=585#comment-395 <strong>Using your flash’s guide number | Camera Dojo...</strong> What the heck is the GN or Guide Number value when looking at different flash units? The guys at Camera Dojo explain this for you in complete detail.... Using your flash’s guide number | Camera Dojo…

What the heck is the GN or Guide Number value when looking at different flash units? The guys at Camera Dojo explain this for you in complete detail….

]]> By: photographyVoter.com http://cameradojo.com/2008/07/19/using-your-flash%e2%80%99s-guide-number/comment-page-1/#comment-491 photographyVoter.com Sun, 20 Jul 2008 18:39:43 +0000 http://cameradojo.com/?p=585#comment-491 <strong>Using your flash’s guide number | Camera Dojo...</strong><br><br>What the heck is the GN or Guide Number value when looking at different flash units? The guys at Camera Dojo explain this for you in complete detail.... Using your flash’s guide number | Camera Dojo…

What the heck is the GN or Guide Number value when looking at different flash units? The guys at Camera Dojo explain this for you in complete detail….

]]> By: Anonymous http://cameradojo.com/2008/07/19/using-your-flash%e2%80%99s-guide-number/comment-page-1/#comment-1009 Anonymous Sun, 20 Jul 2008 13:39:43 +0000 http://cameradojo.com/?p=585#comment-1009 Using your flash?s guide number | Camera Dojo...<br></br><br></br>What the heck is the GN or Guide Number value when looking at different flash units? The guys at Camera Dojo explain this for you in complete detail.... Using your flash?s guide number | Camera Dojo…

What the heck is the GN or Guide Number value when looking at different flash units? The guys at Camera Dojo explain this for you in complete detail….

]]> By: Anonymous http://cameradojo.com/2008/07/19/using-your-flash%e2%80%99s-guide-number/comment-page-1/#comment-1008 Anonymous Sun, 20 Jul 2008 11:39:43 +0000 http://cameradojo.com/?p=585#comment-1008 Using your flash?s guide number | Camera Dojo...<br></br><br></br>What the heck is the GN or Guide Number value when looking at different flash units? The guys at Camera Dojo explain this for you in complete detail.... Using your flash?s guide number | Camera Dojo…

What the heck is the GN or Guide Number value when looking at different flash units? The guys at Camera Dojo explain this for you in complete detail….

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