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Re: [OM] Dr. Flash asks a flash question

Subject: Re: [OM] Dr. Flash asks a flash question
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Fri, 13 Dec 2013 23:03:28 -0500
OK, which of these OTFs are you talking about?
<http://en.wikipedia.org/wiki/OTF>

Chuck Norcutt


On 12/13/2013 7:51 PM, Ken Norton wrote:
> A sheet of OTF is a good option. Sacrifice one sheet, cutting it to size.
> Probably two layers will be about right.
>
>
>
> On Friday, December 13, 2013, Chuck Norcutt wrote:
>
>> The question then is how to cover half the flash without disturbing its
>> angle of coverage... both horizontally and vertically.  My little black
>> dots distributed around?
>>
>> Chuck Norcutt
>>
>>
>> On 12/13/2013 6:14 PM, Ken Norton wrote:
>>> I would either cover up half the flash or throw a modifier on it.
>>> Everything I have has more granularity.
>>>
>>> On Fri, Dec 13, 2013 at 4:59 PM, Chuck Norcutt
>>> <chucknorcutt@xxxxxxxxxxxxxxxx <javascript:;>> wrote:
>>>> Anybody have any suggestions on how to cut the light output of a T-32 in
>>>> full power manual mode by 1/2 stop?  Using the low power setting on a
>>>> T-32 drops the output by 2 stops.  Using a filter holder and a T-32 ND4
>>>> filter also drops it by 2 stops while the ND8 drops it by 4 stops.
>>>>
>>>> I can't use auto or TTL modes so have to figure out how to throttle it
>>>> back in manual mode.  I've thought about using some sort of ND gel
>>>> filter but these things tend to cost more than the present value of a
>>>> T-32.  I've thought of sprinkling little stick-on black dots over the
>>>> surface to block the light but don't know how well that would work.  Any
>>>> blockage needs to be distributed over the surface fairly evenly since I
>>>> don't want to block the angle of coverage.  Maybe a layer or two of
>>>> exposed B&W film?  What can you suggest that I haven't already thought
>> of?
>>>>
>>>> Thanks,
>>>> Dr. Flash (looking for lower power)
>>>>
>>>>
>>>> --
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>>>
>>>
>>>
>> --
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>>
>>
>
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