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01-31-2012, 12:44 PM   #1
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Gradient Neutral density filters with the pentax 67, 45mm wide angle lens

Has anybody have any experience with using ND filters + filter holder with the 45mm wide angle lens ?
My concerns are,

1. Vignetting
2. The filter holder showing in the pic (especially since the view finders show only 90%)

Based on your experience,are there any recommended filters holders and filters ?

Any advice is greatly appreciated !

Rajith


Last edited by rajith; 01-31-2012 at 01:12 PM.
01-31-2012, 01:19 PM   #2
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Hello rajith,

here is some information from Lee:

"How wide will the LEE Filter System go without vignetting?
There is no hard and fast answer to this, lens specs and designs change all the time, as do the filter holder requirements. However, as a rough guide, using a simple holder setup with 2 filter slots, and no lens shade a DSLR (small chip) will go down to 10mm. A 35mm & Full chip DSLR will go down to 16mm. A medium format 645 & 66 will go down to 35mm. A medium format 67 will go down to 45mm. A larger format 54 camera will go down to 70 90mm."
01-31-2012, 01:35 PM   #3
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Original Poster
Thx for the response.
From what I've seen on google it seems most recommend the Lee system compared to say corkin.
The issue is that it's out of stock on b&h.
01-31-2012, 02:24 PM   #4
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You can get it through ebay. Search for the "Lee Foundation Kit". You can also use the Hitech filters with the Lee system.
I wouldn't buy the Cokin holder, as it can only be used with Cokin filters. And the quality is not on the same level as Lee.

Best filters are from Lee and Singh Ray. Hitech and Cokin are much cheaper but have strong color cast.

01-31-2012, 03:35 PM   #5
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I am not sure anymore if I tried the 45mm or the 55mm with LEE ND filters. They worked fine as far as I can say, though.
02-01-2012, 07:41 AM   #6
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Original Poster
Thx guys for the replies.

@derAngler Lee filters and holders are forever out of stock. Checked ebay and they seem quite expensive. I guess people are trying to cash in on the huge demand
I will keep looking.
02-01-2012, 09:04 AM   #7
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I have stacked two screw-on filters on the 6x7 45mm and no vignetting. And these were not thin profile either. I found a 3 stop screw-on ND filters in 82mm but not a 9 or 10 stop. So you could get 6 stops by using two of them.
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