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Messages - tiger82

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91
Third Party Manufacturers / Re: Off Brand: Nikon Announces the Df
« on: November 05, 2013, 09:36:52 AM »
If I were a Nikon afficionado, for the same price, why would I buy a Df over a D800?

92
EOS Bodies - For Stills / Re: Shooting a dance performance and rehearsals
« on: October 30, 2013, 07:29:22 PM »
Thanks.  I have a 50mm f/1.4 available and I do have a 70-200mm.  I should bring all 4 lenses and 3 bodies to the dress rehearsals.

93
EOS Bodies - For Stills / Rockwood Music Hall
« on: October 30, 2013, 04:59:23 PM »
Has anyone shot there and can give me some tips/suggestions?

94
EOS Bodies - For Stills / Shooting a dance performance and rehearsals
« on: October 30, 2013, 04:42:32 PM »
I was planning to shoot with a 100mm f/2.8 IS on a 5D2 and 24-70 f/2.8 on a 7D or 1D3.  It's not my usual cup of tea but I agreed to take publicity shots for a college dance company.  I won't be shooting with flash during dances so any tips ahead of time would be welcome.

95
Optical viewfinder was closed

96
Here is a test with the HiTech 10 stop ND filter, long story with my Lee Big Stopper, but this one is not as well sealed against light coming in the edges.  This is a 20s, ISO100, f/22 image.

97
I know I will lost some FOV and trying to get a design that will minimize that loss.   Maybe the larger Cokin X-Pro filter holder may be better adaptable.

98
Not sure, is one available?  But I was looking for some way to allow for more convenient changes and removal.

99
It will not work.

And why bother, there is a filterholder at the back of the lens.

Have you tried to put a 10 stop ND filter at the back of the lens?

100
15mm shots with black adapter

101
8mm shots with the same adapter size but in black.  The shorter adapter will be ready Monday

102
Not a great day to shoot but here are the results of the FOV check.  Prototype 2 will be black and be usable with the Big Stopper.  The images are at 15mm and  8mm shot with a 5D2

103
It's impossible to put plane filter over a 180 degree fisheye, the math doesn't work that way.

You need a curved filter.

I see you have APS-H camera, which may be working, but it won't work on ff.

The filter is tangent to the front element and I'm trying to get it as close as I can.  Even the standard 8-15 hood gets into the FOV, I am trying to minimize how much I will lose of the circular image.

104
I just shortened the design by nearly 0.3 inches to decrease the adapter impact on the image.  I will post outdoor test images tomorrow of the affected field of view

105
This is a 1Gen prototype for checking mechanical fit and function.  I will be testing a 2Gen prototype with a Lee Big Stopper ND filter.  The 2G prototype will be black.  The production model will be optimized for bulk and shortened as much as possible to avoid vignetting

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