Comments on: How to make a DIY Flash Extender http://brentpennington.com/2010/01/how-to-make-a-diy-flash-extender/ Official website & blog Tue, 31 Aug 2010 01:56:34 +0000 hourly 1 By: Brent Pennington http://brentpennington.com/2010/01/how-to-make-a-diy-flash-extender/comment-page-1/#comment-1505 Brent Pennington Wed, 26 May 2010 00:05:56 +0000 http://brentpennington.com/?p=1781#comment-1505 Now you're making me second guess myself :-) On mine, the smooth side faces the subject (ridges are inside, nearest the flash head). Why? I seem to recall trying it both ways when I was testing it out, and deciding that it seemed to work better like that. From the photos I've taken with it, it definitely works. But now that you've made me think, I'll have to try it the other way next time I use it, just to see! Now you’re making me second guess myself :-)

On mine, the smooth side faces the subject (ridges are inside, nearest the flash head). Why? I seem to recall trying it both ways when I was testing it out, and deciding that it seemed to work better like that. From the photos I’ve taken with it, it definitely works. But now that you’ve made me think, I’ll have to try it the other way next time I use it, just to see!

]]> By: Joe Foto http://brentpennington.com/2010/01/how-to-make-a-diy-flash-extender/comment-page-1/#comment-1502 Joe Foto Tue, 25 May 2010 21:54:23 +0000 http://brentpennington.com/?p=1781#comment-1502 or perhaps I have that completely backwards...I think I may. Light comes in to the ridged side and gets spread (i.e. magnified) as it exits the smooth side. So, therefore, the smooth side should face the flash. Correct? or perhaps I have that completely backwards…I think I may. Light comes in to the ridged side and gets spread (i.e. magnified) as it exits the smooth side. So, therefore, the smooth side should face the flash. Correct?

]]> By: Joe Foto http://brentpennington.com/2010/01/how-to-make-a-diy-flash-extender/comment-page-1/#comment-1500 Joe Foto Tue, 25 May 2010 21:48:14 +0000 http://brentpennington.com/?p=1781#comment-1500 It may be a dumb question, but which way should the ridges of the Fresnel face? I assume towards the flash, as in "opposite" of magnification mode for enlarging a page of a book, for example. It may be a dumb question, but which way should the ridges of the Fresnel face? I assume towards the flash, as in “opposite” of magnification mode for enlarging a page of a book, for example.

]]> By: Brent Pennington http://brentpennington.com/2010/01/how-to-make-a-diy-flash-extender/comment-page-1/#comment-1094 Brent Pennington Thu, 15 Apr 2010 20:30:21 +0000 http://brentpennington.com/?p=1781#comment-1094 I cut it down to about 4x6" - used the trusty Dremel tool. Yeah, 8x11 would be way too big in the field. I cut it down to about 4×6″ – used the trusty Dremel tool. Yeah, 8×11 would be way too big in the field.

]]> By: Zack Jones http://brentpennington.com/2010/01/how-to-make-a-diy-flash-extender/comment-page-1/#comment-1087 Zack Jones Thu, 15 Apr 2010 11:37:53 +0000 http://brentpennington.com/?p=1781#comment-1087 So do you actually use the full 8x11 sheet or did you cut it down any? Seems like 8x11 could be pretty unwieldy out in the field if the wind were blowing. So do you actually use the full 8×11 sheet or did you cut it down any? Seems like 8×11 could be pretty unwieldy out in the field if the wind were blowing.

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