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Alternative Imaging Methods
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Old February 23rd, 2007, 04:22 AM   #256
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Great test, thanks foir doing this, have some questions though;

What do you mean with the M2's edge to edge issue?

How do you read/ can you use such a resolution chart for setting up your adapter?
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Old February 23rd, 2007, 08:09 PM   #257
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Farishad, you're from Jakarta? Me either=)
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Old February 24th, 2007, 01:30 AM   #258
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Farishad, you're from Jakarta? Me either=)
Yup, I read your posts. Did you get your adapter yet? I'm thinking of getting either SGPro or Brevis...it's for an indie feature length that I have plan to shoot this June, pending for the rainy season now...:)
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Old February 24th, 2007, 08:46 PM   #259
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Originally Posted by Farishad Latjuba
Yup, I read your posts. Did you get your adapter yet? I'm thinking of getting either SGPro or Brevis...it's for an indie feature length that I have plan to shoot this June, pending for the rainy season now...:)
No, I haven't get the Brevis yet=( You may pmail me (it's: iansalim@yahoo.com) for an enchanting discussion about adapters=) Rainy day is a mess, just make sure you don't do indie feature about FLOOD =)
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Old March 25th, 2007, 05:31 PM   #260
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As promised, a quick test of the Brevis and Low contrast + ND filter:

This is with Low contrast filter power 5, and a .9 ND Filter
Brevis + FX1, Canon 55mm f1.2 at f5.6:

http://www.frozenphoenixproductions.com/tests/test1.mov

Some may say "but wait! That filter just makes things look washed out." It provides more detail in the shadows and I like it because it provides an image much more keen to color correcting as well as evens out the image for better latitude.
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Old March 25th, 2007, 06:02 PM   #261
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Ben, the bokeh of that footage doesn't look very good. Is it just me?
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Old March 25th, 2007, 06:10 PM   #262
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Ben, the bokeh of that footage doesn't look very good. Is it just me?
I hope so :) I spent an extra $100 for the CF3 just to get that bokeh looking right. Watch the specular highlights on the car; you get that perfect, well-shaped disc; not the 'desired' (whatever that means) "neutral" bokeh, but the hard-edged bokeh. This is what you most commonly see in film productions, and I'm going for film emulation, so...
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Old March 26th, 2007, 01:44 AM   #263
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Farishad.


Les Bosher's adaptor is for putting another lens directly on the video-camera.

( Video-camera >> Les Bosher adaptor >> SLR lens >> Subject. )

It is a metal ring with video-camera mount on the rear end and new lens mount on the front end. Les Bosher's adaptor is not a groundglass based relay adaptor.

Les Bosher's adaptor could be used to fit a SLR still camera lens to the video-camera. On front of this lens can be fitted a good close-up lens.

These all could then become a relay lens for a groundglass based relay adaptor.

( video-camera >> Les Bosher adaptor >> SLR lens >> Close-up lens >> groundglass based image relay adaptor >> SLR Lens >> Subject. )

This is nearly the way Quyen Le does it for the Letus35 except he removes the Minolta mount from the Minolta 50mm still-camera lenses he uses.

He then puts a new specially made JVC HD100 or Canon XL mount on back of the Minolta lens. He also uses a biconvex lens between the close-up lens and the groundglass.

Last edited by Bob Hart; March 26th, 2007 at 01:46 AM. Reason: correction
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Old March 26th, 2007, 08:20 AM   #264
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Ben, I like it with the contrast filter. I've used the FX1 and it loves to clip the highlights and drown the blacks so I think that was a good investment. Which brand did you end up getting again? Thanks.
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Old March 26th, 2007, 08:23 AM   #265
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Ben, I like it with the contrast filter. I've used the FX1 and it loves to clip the highlights and drown the blacks so I think that was a good investment. Which brand did you end up getting again? Thanks.
This was the Low Contrast #5 filter by Tiffen.
http://www.bhphotovideo.com/bnh/cont...goryNavigation
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Old March 26th, 2007, 07:54 PM   #266
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I like how the filter looks, but I think I see grain from the Ground Glass. Are you seeing that? You might have to turn up the oscillation some on the Brevis.
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Old March 26th, 2007, 09:37 PM   #267
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I like how the filter looks, but I think I see grain from the Ground Glass. Are you seeing that? You might have to turn up the oscillation some on the Brevis.
Ken, thanks for reminding me. Since I started experimenting with the CF3 and tighter apertures I have been meaning to fix that.
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Old March 27th, 2007, 07:06 AM   #268
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Thank you very much Ben for your test footage and it looks very good, much lower contrast and it proves to me that a lot of careful work is required when using adapter. I find the edge to edge isn't sharp, more like looking at the TV box through a thin layer of glass, but the center of the image look beautiful.

I understand that both Brevis & SGPro are still improving, I will hold my decision until June (the time I pack-up and go back home to continue video business ;p).

thanks again :).
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Old March 27th, 2007, 10:53 AM   #269
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Originally Posted by Ing Poh Hii View Post
I find the edge to edge isn't sharp, more like looking at the TV box through a thin layer of glass, but the center of the image look beautiful.
I have a sneaking suspicion this is because of the RR achromat, which I am supposed to be getting replaced with the Cinevate achromat. It has other problems as well such as chroma aberration which is apparent in the test video.
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Old March 27th, 2007, 01:09 PM   #270
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Ing, there's much better footage out there from the Brevis. I can get edge-to-edge sharp no problem with my HD100. But on the HVX not so much (not at anything below F4 on the camera lens). Best to ask Dennis about your concerns with your specific camera.
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